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Computer Networks: Crash Course Computer Science #28
 
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Today we start a three episode arc on the rise of a global telecommunications network that changed the world forever. We’re going to begin with computer networks, and how they grew from small groups of connected computers on LAN networks to eventually larger worldwide networks like the ARPANET and even the Internet we know today. We'll also discuss how many technologies like Ethernet, MAC addresses, IP Addresses, packet switching, network switches, and TCP/IP were implemented to new problems as our computers became ever-increasingly connected. Next week we’ll talk about the Internet, and the week after the World Wide Web! Pre-order our limited edition Crash Course: Computer Science Floppy Disk Coasters here! https://store.dftba.com/products/computer-science-coasters Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Want to know more about Carrie Anne? https://about.me/carrieannephilbin The Latest from PBS Digital Studios: https://www.youtube.com/playlist?list=PL1mtdjDVOoOqJzeaJAV15Tq0tZ1vKj7ZV Want to find Crash Course elsewhere on the internet? Facebook - https://www.facebook.com/YouTubeCrash... Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids
Views: 354779 CrashCourse
Packet Switching In Computer Networks | Imp for GATE and UGC NET
 
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Imp for UGC NET and GATE ------------------------------------------------------------------------------------------------- ► Subscribe to me on YouTube-https://www.youtube.com/gatesmashers ► Like Our page on Facebook - https://www.facebook.com/gatesmashers/ ► Link for Computer Networks Playlist- https://www.youtube.com/playlist?list=PLxCzCOWd7aiGFBD2-2joCpWOLUrDLvVV_ ► Link for Operating System Playlist- https://www.youtube.com/playlist?list=PLxCzCOWd7aiGz9donHRrE9I3Mwn6XdP8p ► Link for Database Management System Playlist- https://www.youtube.com/playlist?list=PLxCzCOWd7aiFAN6I8CuViBuCdJgiOkT2Y ► Link for Graph Theory Playlist- https://www.youtube.com/playlist?list=PLxCzCOWd7aiG0M5FqjyoqB20Edk0tyzVt ► Last Minutes Preparation for UGC NET and GATE Playlist- https://www.youtube.com/playlist?list=PLxCzCOWd7aiE4LQMkIhAe9amWX_SPNMiZ For any Query and Suggestions- [email protected] ------------------------------------------------------------------------------------------------- #PacketSwitching#ComputerNetworks#CSE #GATE #UGCNET #PSU
Views: 20196 Gate Smashers
Cisco Catalyst 9300 Overview
 
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Overview and Review of the Catalyst 9300 and all its great features. UPoE, ETA, mGig, NBAR, MACsec, SD-Access, Perpetual PoE, Fast PoE, Stacking, Blue Beacon Light, Netflow
Views: 14792 Cisco Sal
Our Tried and Tested Network Technician Tools: Klein VDV Scout Pro, Southwire, MAGNEPULL & More!
 
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Amazon Affiliate Store https://www.amazon.com/shop/lawrencesystemspcpickup Things we love including computers, software, services, gadgets, and of course hot sauces. https://www.lawrencesystems.com/things-we-love/ Klein Tools Cable Tester Remotes Test Continuity, Connectivity, Traces Cable, VDV Scout Pro 2 LT VDV501-825 https://amzn.to/2SasMxn MAGNEPULL XP1000-LC-MS-1 Wire Fishing System w/MAGNESPOT https://amzn.to/2TI4mNw TEKTON 28301 Everybit Tech Rescue (TM) Kit for Electronics, https://amzn.to/2rbomep Southwire Tools & Equipment Crimper https://amzn.to/2S9g9CU Southwire Tools & Equipment Punch https://amzn.to/2KvNO70 Madison Electric Products MERAY Stingray https://amzn.to/2QkGKzq Kobalt 13-Piece Bi-Metal Hole Saw Kit https://amzn.to/2FFMShL Klein Scout review https://youtu.be/KxpLt-uiuh0 Our Web Site https://www.lawrencesystems.com/ Patreon https://www.patreon.com/lawrencesystems Twitter https://twitter.com/TomLawrenceTech Our Forums https://forums.lawrencesystems.com/
PoE & Network Hardware Guide
 
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In our 3rd video guide, we take you through the basics of PoE and how it can be used, and we also take you through some of the most common types of network hardware (routers, extenders, etc...) and how they can be used in your IP camera system. - A big THANK YOU to our colleague Keoni who worked so hard creating these videos from scratch - https://www.use-ip.co.uk/ FOLLOW US use-IP Facebook: https://www.facebook.com/useip/ use-IP Twitter: https://twitter.com/useIP use-IP Google+: https://plus.google.com/+Use-ipCoUk/p... use-IP Forum: http://forum.use-ip.co.uk use-IP Blog: http://blog.use-ip.co.uk
Views: 4840 use-IP Ltd
Routers, Firewalls, and Switches - CompTIA Security+ SY0-401: 1.1
 
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Security+ Training Course Index: http://professormesser.link/sy0401 Professor Messer’s Course Notes: http://professormesser.link/sy0401cn Frequently Asked Questions: http://professormesser.link/faq - - - - - The fundamental technologies in almost every network are switches, routers, and firewalls. In this video, you'll learn how these devices are used to connect and protect our network devices. - - - - - Download entire video course: http://professormesser.link/401adyt Get the course on MP3 audio: http://professormesser.link/401vdyt Subscribe to get the latest videos: http://professormesser.link/yt Calendar of live events: http://www.professormesser.com/calendar/ FOLLOW PROFESSOR MESSER: Professor Messer official website: http://www.professormesser.com/ Twitter: http://www.professormesser.com/twitter Facebook: http://www.professormesser.com/facebook Instagram: http://www.professormesser.com/instagram Google +: http://www.professormesser.com/googleplus
Views: 343487 Professor Messer
How to Cisco Switch Configuration
 
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This is a run through of the Cisco switch Configuration as stated by Cisco on the CCENT exam topics. Cisco Switch Configuration for Cisco CCENT. The Cisco CCENT Exam topics states that you need to know the below initial switch configuration. You can find the Cisco CCENT exam topics here: https://learningnetwork.cisco.com/community/certifications/ccna/icnd1_v2/exam-topics Configure and verify initial switch configuration including remote access management a. hostname b. mgmt ip address c. Ip default-gateway d. local user and password e. enable secret password f. console and VTY logins g. exec-timeout h. service password encryption i. copy run start ---------------------------------------------------------------------------------------------------------------- 📚 Highly Recommended Study Books! 📚 CCENT (ICND1) 100-105: https://amzn.to/2W2PwkN CCNA (ICND2): 200-105: https://amzn.to/2TKcIrh ----------------------------------------------------------------------------------------------------------------
Views: 3760 CertBros
Offensive Computer Security 2014 - Lecture 13 (Networking 101)
 
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This lecture covers an overview of networking concepts and network security concepts. Topics covered: Wireshark, Nmap, nc, Hubs vs switches vs routers, manufacturer default logins / backdoors... ARP & dns (dnssec), proxies, weak IP vs strong IP model (RFC 1122). The course is located at: http://www.cs.fsu.edu/~redwood/OffensiveComputerSecurity/
Views: 4220 Nobody
AAA framework and RADIUS
 
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AAA stands for Authentication, Authorization, and Accounting. It is a fundamental security framework for controlling a user’s access to a network, determining access levels or user privileges based on policies and user identity, and keeping track of the user’s activities. RADIUS stands for Remote Authentication Dial-In User Service. It is a client/server protocol and system that enables a network access server, or NAS, to communicate with a central server to authenticate dial-in users, authorize their access to the network, and keeps track of their activities. Keywords: AAA, Authentication, Authorization, and Accounting, RADIUS, Remote Authentication Dial-In User Service, supplicant, network access server, NAS, Remote Access server, WAP, Wireless Access Point. My topics are organized by playlists: https://www.youtube.com/user/sunnylearning/playlists My most popular videos: https://www.youtube.com/user/sunnylearning/videos?sort=p&view=0&flow=grid Access Control Fundamentals https://www.youtube.com/playlist?list=PLSNNzog5eydthQKWtSjm0Z4GEz7spwJuu Playlist: Basic Cryptography https://www.youtube.com/watch?v=vk3py9M2IfE&list=PLSNNzog5eyduN6o4e6AKFHekbH5-37BdV Advanced Cryptography: https://www.youtube.com/watch?v=TmA2QWSLSPg&list=PLSNNzog5eydtwsdT__t5WtRgvpfMzpTc7 Playlist - IPv4 Basics https://www.youtube.com/watch?v=vcArZIAmnYQ&list=PLSNNzog5eydt_plAtt3k_LYuIXrAS4aDZ Please leave comments, questions and subscribe! Thank you very much! Sunny Classroom
Views: 4194 Sunny Classroom
CCENT (ICND1) An Overview of Network Security
 
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In this clip from ICND1 class live online at StormWind.com, Anthony Sequeira provides an overview of the importance of Network Security in modern computer infrastructures.
Views: 17972 StormWind Studios
ImpieReal Systems * IT Phone Security Camera Techs  * HelpDesk * Network Support * Washington DC
 
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☆ ImpieReal Systems, an idea by Gift Sting ☆ ♧+1 (202) 681-2044 or +1 (804) 404-3025 or [email protected]♧ IT & technical support in Washington DC, Richmond Virginia & Columbia, Maryland ImpieReal Systems https://impiereal.tumblr.com ~ https://plus.google.com/102781252088746039194 ~ Gift Sting https://giftsting.com Cute Maestro by Art Love https://qutemaestro.tumblr.com Art Love the DJ http://djartlove.com ~ https://djartlove.tumblr.com ~ https://djartlove.business.site ~ FREE math & physics cheat sheets + much more https://plus.google.com/101748909807157252511 https://twitter.com/qutemaestro ☆ IMPIEREAL SYSTEMS by the GIFT STING GROUP ☆ Excellence with every squeeze! If we cannot fix it, it has to be absolutely FREE! If we have to make corrections, the corrections are FREE! No contracts, no middle men, no run-around, no mess, no headaches! Security camera surveillance [DVR NVR IP CCTV cameras] VPN & security assessments Networking [routing & switching] Servers & desktop support Telephones [Voice over IP ~ #SIP telephony] Firewalls & encryption Systems & network administration Databases [Microsoft SQL & Oracle] / Big Data / DBA / Warehousing Virtualization [VMWare] Audio-Visual [#av music audio speaker public announcement #pa] Email & printers Cloud services / Automation / #DevOps Business Intelligence / Trend Charts / Reporting & Presentation #Java, #Python, PHP, website & #Android app Design Lowest rates every time Qualified & properly trained professionals Photography Graphic design, copy, print & publishing Pie charts, histograms & professional presentations Just search "impiereal" Thank you so much! ☆ Services by the legendary DJ Art L♡ve ☆ ♧KiLLER DJ + LiGHTING♧ ONE PRICE, FULL SERVICE! Beautiful modern disco lighting for weddings included. Top end, chic! ♧CONFERENCES & MEETINGS♧ Rent our top dollar world class sound/audio systems for your conference / meeting / business IT SUPPORT & CONSULTING♧ ImpieReal Systems is the I.T. / technical support division by DJ Art Lovr. ♧MAKEUP & BEAUTY♧ Gift Sting is the comfort, luxury & beauty division by the history-making Art Lover. There can only be one DJ Art Love! IT Support Richmond VA. IT consulting washington dc. tech support dc. pc support maryland. technical support dc. ip cams #nvr #dvr digital video surveillance security cams camera for business network video cameras protect your business or home from robbers intruders thieves danger dangerous criminals with cameras test your cameras recording your best line of defense are your cameras vedeo recording monitor premises remotely #spy on your employeees spy on your buiness with wifi camera film surveilllance ip phone voice pbx fax machines configuration #sip #sipvoice #sipphones for hotel #pbx credit card readers #creditcards #creditcardmachines accept payment #paymentgateways payment processing for app website online business send receive money remotely from anywhere in the world pay processing gateway #visa #mastercard #americanexpress google pay #gpay paypal #paypal experts world pay wallet money transfer #mpesa samsung pay #samsung #applepay take cash small business enterprise accept donations wifi techs northern virginia va. Arlington. Alexandria. Reston. Centerville. Dulles. Falls Church. Bethsda. Maryland. Baltimore. Springfield. McLean. Fairfax. Washington. Tech support. Geek computer. Repair. Wireless. Wifi. Hotel rooms. Small office IT. Enterprise. LAN WAN. Voice over IP. Android. Mobile. iOS. Apple suppot. Technician. Geek squad. Routers. Servers. Windows. Linux. CentOS. Oracle Computer Support. Computer Support RVA Virginia IT professionals. Cisco IOS. network routers switches. RVA. IT Tech RVA Impie. Tech Professionals Richmond. Tech IT Pro RVA. DC IT Pros Impie. Tech IT Richmond VA Pro Techs DC Tech Support. Network engineering. Systems administrator. Computer support Washington DC. Help desk. Linux server administrators. Tech support Washington DC. Apple Mac. Repair. Desktop. Smart phones. iPhone. Samsung Galaxy. Galaxy Mobile Richmond Impie. iPhone DC Impie. RVA. Tech engineer. Internet. Ubuntu. AWS. Cloud. Office 365. Active Directory. VMware. Virtualize. Virtual. Java. Storage SANs IIS Apache web engineer. GSM. CDMA Galaxy iPhone. VLAN. Virtual tunnel. Encryption. Cryptography. EIGRP. VPN. IT specialist. computer geeks richmond va geek squad dc impie. Java developers richmond va impie. NET developers. JSON. REST API Impie. Developers yDC software engineer. network technicians Wireless. Wifi Access points IT hire DC. Work for IT DC. Hire IT support RVA. Internet Techs. Wifi Internet. Hotel. Technicians. Hampton Inn VA. Virginia Beach IT Network Tech Tech Engineer. Professional IT Support. IT techs Fairfax Virginia. Woodbridge. Mobile data engineer. Smart phones data mobility Samsung Galaxy. iOS iPhone
Views: 133 ImpieReal Systems
☆ ImpieRealSystems ♧ IT Tech Support DC ☆ Computer Help Richmond ☆ Sound Techs ☆ Networks Maryland ☆
 
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☆ ImpieReal Systems, an idea by Gift Sting ☆ ♧+1 (202) 681-2044 or +1 (804) 404-3025 or [email protected]♧ IT & technical support in Washington DC, Richmond Virginia & Columbia, Maryland ImpieReal Systems ♧ https://impiereal.tumblr.com ♧ https://impiereal.business.site ♧ https://www.youtube.com/watch?v=8SV0NMKHtjU ♧ https://twitter.com/impiereal ♧ Gift Sting ♧ https://giftsting.com ♧ https://giftsting.tumblr.com ♧ https://giftsting.business.com ♧ https://twitter.com/giftsting ♧ Cute Maestro by Art Love ♧ https://qutemaestro.tumblr.com ♧ https://twitter.com/qutemaestro ♧ https://cutemaestro.business.site ♧ Art Love the DJ ♧ https://dj-art-love.business.site ♧ https://djartlove.tumblr.com ♧ https://djartlove.business.site ♧ https://soundcloud.com/djartlove ♧ https://twitter.com/djartlove ♧ ☆ IMPIEREAL SYSTEMS the GIFT STING GROUP ☆ If we cannot fix, it is absolutely FREE! If we have to make corrections, the corrections are FREE! No contracts, no middle men, no run-around... VPN & security assessments Networking [routing & switching] Servers & desktop support Telephones [Voice over IP] Firewalls & encryption Systems & network administration Databases [Microsoft SQL & Oracle] / Big Data / DBA / Warehousing Virtualization [VMWare] Email & printers Cloud services / Automation / #DevOps Business Intelligence / Trend Charts / Reporting & Presentation #Java, #Python, PHP, website & #Android app Design Lowest rates every time Qualified & properly trained professionals No headaches, no guess work! Great photography Graphic design & imagination Copy, print & publishing Pie charts, histograms & professional presentations So, please leave us a message Just search "impiereal" Thank you so much! ☆ Services by the legendary DJ Art L♡ve ☆ ♧KiLLER DJ + LiGHTING♧ ONE PRICE, FULL SERVICE! Beautiful modern disco lighting for weddings included. Top end, chic! ♧CONFERENCES & MEETINGS♧ Rent our top dollar world class sound/audio systems for your conference / meeting / business / #hotel; education / TED Talk; film & broadcast; concert / live sound; exhibition & pep rally, or any other event you may think of. We have a warehouse filled with the very best up-to-date gear [Yep! We shop all day long, every day just for you]. ♧IT SUPPORT & CONSULTING♧ ImpieReal Systems is the I.T. / technical support division by DJ Art Lovr. ♧MAKEUP & BEAUTY♧ Gift Sting is the comfort, luxury & beauty division by the history-making Art Lover. There can only be one DJ Art Love… Only one! And he travels with a deep catalog of clean killer music [music without violence, profanity, gangsterism or racism]. Just many years of fine tuning. Weddings, Fashion, Corporate ~*~ sound technicians #soundtech sound audio engineering #soundengineersdc #camera #security #surveillance #ipcams IT support Richmond VA. IT c washington dc. tech support dc. pc support maryland. technical support dc. wifi techs northern virginia va. Arlington. Alexandria. Reston. Centerville. Dulles. Falls Church. bethesda. Maryland. Baltimore. Springfield. McLean. Fairfax. Washington. Tech support. Geek computer. Repair. wireless office IT. Enterprise. LAN WAN. Voice over IP. Android. Mobile. iOS. Apple suppot. Technician. geek routers servers linux. CentOS. Oracle Computer Support. Computer Support RVA Virginia IT professionals. Cisco IOS. network routers switches. RVA. IT Tech RVA Impie. Tech Professionals Richmond. Tech IT Pro RVA. DC IT Pros Impie. Tech IT Richmond VA Pro Techs DC Tech Support. Network engineering. Systems administrator. Computer support Washington DC. Help desk. Linux server administrators. Tech support Washington DC. Apple Mac. Repair. Desktop. iPhone. Samsung Galaxy. Galaxy Mobile iPhone DC impie. RVA. Tech engineer. Internet. Cloud. Active Directory. VMware. Virtualize. Virtual. Java. Coding. Business Intelligence. Cabling. Certified. PC computer Storage SANs IIS Apache web engineer. gsm Galaxy iPhone. VLAN. Virtual tunnel. Encryption cryptography VPN. IT specialist. computer geeks richmond va geek squad dc impie. Java developers richmond va impie. NET developers. JSON. REST API Impie. Developers yDC software engineer. network technicians Wireless. Wifi Access points. Comcast IT hire DC. Work for IT DC. Hire IT support RVA. Internet Techs. Wifi Internet. Hotel. Technicians. Real Estate IT. Hampton Inn VA. Virginia Beach IT Network Tech Geek Girl. IT guys in Virginia DC. Storage SAN NetApp Tech Engineer. Professional IT Support. Quality. IT techs Fairfax Virginia. #cctv #surveillance #ipcams wifi nvr dvr digital video security door alarm #intrusion detection court evidence #police cam sheriff deputy recording protection child kid children #safety #spy #spycams spy camera private investigator #pi wedding reception deejays service pretoria luanda dsm dar es salaam london i ibiza jhb jozi soweto durban kzn kwazulu natal johannesburg cape town
Views: 941 ImpieReal Systems
How firewalls work | Network firewall security | firewall security  | TechTerms
 
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Learn how firewalls actually work, Network Security, packet filtering firewall, stateful inspection firewall, proxy firewall and why we need firewall security in our network. Learn network firewall security, network security firewall, firewall security, network firewall, what does a firewall do, what is a firewall, firewall, stateful firewall, windows firewall, what is firewall, firewall protection, firewall meaning, what do firewalls protect against, learn more about firewalls, firewall security network, firewall for network, What’s firewall, what does a firewall protect your company against, firewall network protection, firewall packet filtering. facebook page : https://www.facebook.com/DGTechTerms/ You will find answers to these questions : working of firewall windows firewall why we need firewall in network why we need firewall why use firewall why use a firewall why is a firewall important why firewall why do we need firewall why are firewalls used where is firewall what's firewall whats firewall what's a firewall on a computer what's a firewall whats a firewall what is windows firewall what is use of firewall what is the use of firewall what is the role of firewall in network security what is the role of a firewall what is the purpose of firewall software what is the purpose of firewall what is the purpose of a firewall what is the meaning of firewall what is the main purpose of a firewall what is the function of firewall what is the function of a firewall what is the firewall in computer what is the firewall what is the fire wall what is the definition of firewall what is software firewall what is network firewall what is my firewall what is meant by firewall what is internet firewall what is hardware firewall what is firewall used for what is firewall software what is firewall security what is firewall protection what is firewall on computer what is firewall on a computer what is firewall in networking and how it works what is firewall in networking what is firewall in network security what is firewall in computer security what is firewall in computer network what is firewall in computer what is firewall how does it work what is firewall for what is firewall and write the types of firewall what is firewall and why is it necessary what is firewall and its types what is firewall and how it works what is firewall what is computer firewall what is an firewall what is a proxy firewall what is a network firewall what is a hardware firewall what is a firewall used for what is a firewall software what is a firewall on computer what is a firewall on a computer what is a firewall in networking what is a firewall in computers what is a firewall in computer terms what is a firewall in computer network what is a firewall for computers what is a firewall for what is a firewall computer what is a firewall and why is it necessary what is a firewall and what is its function what is a firewall and what does it do what is a firewall and how does it work what is a firewall what is a computer firewall and how does it work what is a computer firewall what firewall does what does the firewall do what does network firewall mean what does firewall software do what does firewall mean in computer terms what does firewall mean what does firewall do what does a firewall protect your company against what does a firewall protect you from what does a firewall protect against what does a firewall protect what does a firewall do to protect your computer what does a firewall do what does a computer firewall do what do you mean by firewall what do firewalls protect your computer from what do firewalls protect against what can a firewall protect against what can a firewall do what are firewalls used for what are firewalls in computers what are firewalls what a firewall is and why it is necessary what a firewall does uses of firewall in networking uses of firewall in computer uses of firewall use of firewall in networking use of firewall in network security use of firewall in computer use of firewall use firewall understanding firewalls types of software firewalls types of firewalls types of firewall software types of firewall in network security types of firewall turn firewall on the fire wall the definition of firewall system firewall stateful inspection firewall stateful firewall software firewall for network software firewall software based firewall short note on firewall server firewall security firewall -~-~~-~~~-~~-~- Please watch: "Computer Network Administrator – 5 Important Questions and answers" https://www.youtube.com/watch?v=4mKcQ1_vQjc -~-~~-~~~-~~-~-
Views: 139047 TechTerms
6.4.2 - Ethernet | FHU - Computer Networks
 
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An overview of the Ethernet protocol and packet format. The slides are adapted from Kurose and Ross, Computer Networks 5th edition and are copyright 2009, Kurose and Ross.
Views: 2713 Kenan Casey
TCP/IP Explained - Backbone of your INTERNET
 
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Namaskaar Dosto, is video mein maine aapse TCP/IP ke baare mein baat ki hai, Transmission Control Protocol aur Internet Protocol ek backbone system hai jiski wajeh se Internet kaam karta hai. Mujhe umeed hai ki aapko TCP/IP ki yeh video pasand aayegi. Share, Support, Subscribe!!! Subscribe: http://bit.ly/1Wfsvt4 Android App: https://technicalguruji.in/app Youtube: http://www.youtube.com/c/TechnicalGuruji Twitter: http://www.twitter.com/technicalguruji Facebook: http://www.facebook.com/technicalguruji Facebook Myself: https://goo.gl/zUfbUU Instagram: http://instagram.com/technicalguruji Google Plus: https://plus.google.com/+TechnicalGuruji Website: https://technicalguruji.in/ Merchandise: http://shop.technicalguruji.in/ About : Technical Guruji is a YouTube Channel, where you will find technological videos in Hindi, New Video is Posted Everyday :)
Views: 283188 Technical Guruji
CCNA And CCENT Video Boot Camp: Encryption
 
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Visit http://bit.ly/x9HAn5 to join over 1,200 Bulldogs in my CCNA Video Boot Camp - and save serious money with the coupon code mentioned in this video! More free CCNA videos on my website at http://bit.ly/c3GC1O ! In today's CCNA and CCENT Video Practice Exam, we'll take a look at a basic configuration on a live Cisco router, and you'll be given three questions to answer about the config. You'll then see the results live on that same router! Thanks for watching and for making TBA part of your CCNA success story! Chris Bryant CCIE #12933 "The Computer Certification Bulldog" [email protected] Website: http://www.thebryantadvantage.com Twitter: http://www.twitter.com/ccie12933 (@ccie12933) Facebook: http://on.fb.me/gPq52d Blog: http://thebryantadvantage.blogspot.com YouTube: http://www.youtube.com/user/ccie12933
Views: 592 Chris Bryant
Networking Security Intro - Georgia Tech - Software Defined Networking
 
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Watch on Udacity: https://www.udacity.com/course/viewer#!/c-ud436/l-1720608547/m-441398579 Check out the full Computer Networking course for free at: https://www.udacity.com/course/ud436 The Georgia Tech online Master's program: https://www.udacity.com/georgia-tech
Views: 790 Udacity
How-To: Cisco StackWise Virtual Architecture
 
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This video introduces you to the Stackwise Virtual architecture and discusses how this architecture provides high availability in a network. For more on Cisco DNA Center, visit https://www.cisco.com/c/dam/en/us/products/collateral/switches/catalyst-9000/nb-06-cat-9k-stack-wp-cte-en.pdf
Views: 23556 Cisco
CCNA Cisco Router Password Encryption: 3-Minute Tutorial
 
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Visit http://bit.ly/9cB172 for over 400 additional CCNA and CCNP tutorials! In today's 3-Minute Tutorial, we'll take a look at encrypting passwords on a live Cisco router - and a dirty little secret that many study guides fail to mention, but you better know! Be sure to subscribe to our YouTube channel, and I look forward to helping you earn your CCNA and CCNP! Chris Bryant CCIE #12933 "The Computer Certification Bulldog: [email protected]
Views: 5793 Chris Bryant
Is Internet Secure?
 
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Internet as all of us know is a computer network. Information is exchanged between computers which are located globally by the use of Internet. Any two internet connected computers have the ability to communicate with each other by exchanging information. This can be text, image, audio, video, basically anything. And these computers can exchange information in very less time even though they are miles apart. Thanks to the well crafted applications of physics and chemistry we have a decent Internet hardware which falicitates us to make the communication faster. The computers on the Internet are either server computers or client computers. Server computers are those which serve the requests of the client computers and send them the files that they’re requesting. Client computers are those which send requests to server computers asking for files or information. Internet is now becoming almost a common requirement for everyone living on the Earth. Every organisation or company is using Internet to digitalise their work. We are using Internet for online shopping, social networking, to read and send important emails, all of which are worth a lot of money. You know it is serious when we are talking about money. So, if are doing things which are worth money on the Internet, you know Internet should be secure. Just like how banks have a tight security. Internet also must have. So, in this video we will see if Internet is secure and if it is, how secure Internet is. Consider a case where you are logging in to your ONLINE Internet banking account. You visit your bank portal on your browser, put in your username and password and click login. When you click on login , the credentials you entered must be validated to see if they are correct. For this to happen, your credentials are to be sent to the server computer of your bank which may be located miles apart. Your data containing the credentials are broken down into packets and are first sent to your home router, from where they will be forwarded to other routers and packet switches on the Internet. Finally they reach your bank’s server computer where the packets are re-assembled and then the credentials are validated. But notice here that the packets of data Containing your credentials are forwarded to many routers and packet switches before they reach the bank server. This means that your packets of data are almost public while they are transmitted. Anyone can eaves drop on you, and can easily capture these packets of data. Or anyone who owns any one of the router on the path between you and your bank server can reassemble the packets and can read your credentials. And I need not explain what might happen if any one has your bank credentials. This is the same with your email credentials, or Facebook credentials or your payment information that you are sending to some online shopping website or any other critical information. So, is there any way using which we can directly send our data packets to the web sever without any intermediate routers? No, there isn’t. Or at least for now, there is no technology to achieve that. So, what other option is left? We know we can’t prevent anyone eavesdropping us. SO what do we do? We lock our data with a key. Just like how we keep important things in a box and then lock the box with a key and keep the key with us securely. We lock our data with a key before we send it to the Internet, and we keep this key very secure with us. Now, if anyone wants to read our data they need this key to unlock it first. So, even though if someone captured the data that we are sending, they will not be able to read it since it is locked and they need a key to unlock it, and they don’t have it. This is the general theory of Cryptography. One QUESTION arises, what if brute force and guess the private key using our computer. Well, it’s almost impossible to brute force a key. Because that is how these algorithms are all designed. You cannot brute force a key with your home computer .It may take a million years to crack a key with your computer because it involves a lot of processing and a lot of guessing. It is impossible to crack a key with the present technology we have. But who knows in the future computers can be fast enough to crack a key in a matter of minutes may be. We can’t expect how far technology may go. But wait, have you listened about QUANTUM computers? They are expected to be arriving soon or they’ve already arrived?, anyways they are much much much faster than the normal computers that we’re using. And yeah, they are a threat to the current cryptographic techniques that are employed on the Internet. Visit my website : https://techraj156.com Like my Facebook Page : https://fb.com/techraj156 Follow me on Instagram : https://instagram.com/teja.techraj Follow on Twitter : https://twitter.com/techraj156 For written tutorials, visit my blog : http://blog.techraj156.com SUBSCRIBE for more videos! Thanks for watching! Cheers!
Views: 4002 Tech Raj
CCNA CCNP Frame Relay Switch Config 2/2
 
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Visit http://bit.ly/k8TjvE for the full Frame Relay Switch configuration shown in this video! Second part of two-part series on configuring a frame relay switch. Also reviews basic frame relay concepts for CCNA, CCNP, and CCENT candidates. This config can be found in the Home Lab Help section of my Tutorials page, http://www.thebryantadvantage.com/Tutorials.htm . You can find over 200 Cisco tutorials, practice exams, and articles on that page as well. Enjoy!
Views: 57624 Chris Bryant
System76 Pop! OS Version 18.04 Review & Why I Made The Switch!
 
28:45
Amazon Affiliate Store https://www.amazon.com/shop/lawrencesystemspcpickup Things we love including computers, software, services, gadgets, and of course hot sauces. https://www.lawrencesystems.com/things-we-love/ Get Pop OS! Here https://system76.com/pop Differences Between Pop!_OS and Ubuntu http://pop.system76.com/docs/difference-between-pop-ubuntu/ Our Web Site https://www.lawrencesystems.com/ Patreon https://www.patreon.com/lawrencesystems Twitter https://twitter.com/TomLawrenceTech Our Forums https://forums.lawrencesystems.com/
Need for Network Security - Georgia Tech - Software Defined Networking
 
01:56
Watch on Udacity: https://www.udacity.com/course/viewer#!/c-ud436/l-1720608547/m-441398580 Check out the full Computer Networking course for free at: https://www.udacity.com/course/ud436 The Georgia Tech online Master's program: https://www.udacity.com/georgia-tech
Views: 313 Udacity
Firewall - Software and Hardware Explained | Network Security | TechTerms
 
02:10
Network security firewall windows computer or pc firewall / fire wall protection / importance, software and hardware firewall, its meaning, definition, how firewall works, how firewall protect computer in networking, what firewall do and is used for. Follow us on Facebook: https://www.facebook.com/DGTechTerms/ Follow us on Twitter: https://twitter.com/Technical_Terms -~-~~-~~~-~~-~- Please watch: "Computer Network Administrator – 5 Important Questions and answers" https://www.youtube.com/watch?v=4mKcQ1_vQjc -~-~~-~~~-~~-~-
Views: 48708 TechTerms
Becoming Anonymous: The Complete Guide To Maximum Security Online
 
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Techlore Website: https://techlore.tech Patreon: https://www.patreon.com/techlore Video tutorial showing how to become anonymous, hide you internet traffic and identity, and browse the web freely without any fear of privacy invasion or any security concerns from your Government, school, or organization (NSA, CIA, FBI). Going off the grid and becoming fully anonymous (hiding your online identity) is not 100% possible, because of how the internet works, but we can do everything we possibly can to get as close as possible to anonymous. In this video guide, I will show you how to secure all of your devices--such as computers, phones (iPhone vs Android), tablets, and anything else, by securing your passwords, using two factor authentication, securing your web browsers (Mozilla Firefox & Tor), using a VPN (NordVPN or AirVPN), securing social media (Facebook, Snapchat), your communication like texting and email (Signal and Protonmail encrypted messengers), your operating system (Linux), and much much more! I will also cover deleting a majority of your online identity/fingerprint to hide as much information about you as possible, in addition to give you tips on how to prevent social engineering attacks. URGENT: This guide has A LOT of room for improvement, and I have made sure to update it. If you're interested in learning about EVERYTHING you need to know about security, privacy, and anonymity--check out Go Incognito, a free and in-depth course taking you from start to finish: https://www.youtube.com/playlist?list=PL3KeV6Ui_4CayDGHw64OFXEPHgXLkrtJO Now, some of you may ask why? Well, at a basic level, your privacy is constantly invaded by the websites you visit, your ISP, your government, your school/employer, and even services you use like Google or Facebook. Everything you do is being tracked and we aren't quite sure what consequences may result out of all of this data being created out of us. Some people also fear certain things like doxing, and other forms of leaks of your personal information. It is also common for corporations to sell your data for a profit, which is a complete violation of your privacy. Techlore Subreddit: https://www.reddit.com/r/techlore/ Instagram: https://www.instagram.com/techloreofficial/ Discord Server: https://discord.gg/74WhF9C Minds: https://www.minds.com/Techlore Telegram Channel: https://t.me/techloreofficial Telegram Group: https://t.me/techloregroup Amazon Support Affiliate Link: https://www.amazon.com/shop/influencer20170928875 Merchandise: https://teespring.com/stores/lemur-shop Unix MAC Address Command: sudo ifconfig wlan0 down && sudo ifconfig hw ether 00:11:22:33:44:55 && sudo ifconfig wlan0 up LINKS (By Order of Appearance): Techlore Scoring PDF Guide: https://techlore.tech/securityguide.pdf How Secure is my Password: http://bit.ly/Kz6V00 Free Password Manager Video: http://bit.ly/2HGps84 Google Authenticator (Play Store): http://bit.ly/19dDzPR Google Authenticator (App Store): https://apple.co/1lDUkZN DuckDuckGo: https://duckduckgo.com/ Startpage: https://www.startpage.com/ What is a VPN?: http://bit.ly/2HIDplZ NordVPN Review: http://bit.ly/2DzZXCF iNumbr: https://www.inumbr.com/ Signal Messenger: https://www.signal.org/ ProtonMail: https://protonmail.com/ CCleaner: https://www.piriform.com/ccleaner Firefox: https://mzl.la/1heu2Ys uBlock Origin: https://mzl.la/1LCnIua Privacy Badger: https://mzl.la/2FXWe7r HTTPS Everywhere: https://mzl.la/2jwWafG Google My Activity: https://myactivity.google.com/ F-Droid Store: https://f-droid.org/ LineageOS ROM: https://lineageos.org/ CopperheadOS ROM: https://copperhead.co/android/ Tor Browser: https://www.torproject.org/ Orbot (Play Store): http://bit.ly/1a15JMf Orfox (Play Store): http://bit.ly/29sml8g Firefox Focus (Play Store): http://bit.ly/2swr51v Red Onion (App Store): https://apple.co/2tTzlxf Firefox Focus (App Store): https://apple.co/2pipcFn Coinbase Referral Link: http://bit.ly/2FNg3Lq SMAC: http://bit.ly/2FIWuaY Delete Your Account: http://bit.ly/2FGVTH1 Pipl: https://pipl.com/ TinEye: https://tineye.com/ Archives: https://www.archives.com/ SOURCES (By Order of Appearance): Harvard Gazette Online Security: http://bit.ly/2vop4Jt The Verge Facebook Lawsuit: http://bit.ly/2FENfIZ CBS News Data Broker: http://cbsn.ws/2xuhYzq NBC News Equifax Data Breach: http://nbcnews.to/2gPetAZ Good Security Questions: http://goodsecurityquestions.com/examples NordVPN on SMS 2FA Security: http://bit.ly/2plfUIE How a VPN Works? (Lego Video): http://bit.ly/2pnS9zd Makeuseof FB Messenger Privacy: http://bit.ly/2piq78N FindLaw Email Privacy Concerns: http://bit.ly/2phsdWm LifeHacker Chrome Data Collection: http://bit.ly/2hsna4W PCWorld Linux More Secure: http://bit.ly/2HCX9XS #anonymous #techlore #security
Views: 537444 Techlore
DEF CON 23 - Panel - Switches Get Stitches
 
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This talk will introduce you to Industrial Ethernet Switches and their vulnerabilities. These are switches used in industrial environments, like substations, factories, refineries, ports, or other homes of industrial automation. In other words: DCS, PCS, ICS & SCADA switches. The researchers focus on attacking the management plane of these switches, because we all know that industrial system protocols lack authentication or cryptographic integrity. Thus, compromising any switch allows the creation of malicious firmwares for further MITM manipulation of a live process. Such MITM manipulation can lead to the plant or process shutting down (think: nuclear reactor SCRAM) or getting into a unknown and hazardous state (think: damaging a blast furnace at a steel mill) Not only will vulnerabilities be disclosed for the first time, but the methods of finding those vulnerabilities will be shared. All vulnerabilities disclosed will be in the default configuration state of the devices. While these vulnerabilities have been responsibly disclosed to the vendors, SCADA/ICS patching in live environments tends to take 1-3 years. Because of this patching lag, the researchers will also be providing live mitigations that owner/operators can use immediately to protect themselves. At least four vendors switches will be examined: Siemens, GE, Garrettcom and Opengear. Colin Cassidy is a security consultant for IOActive where he focuses on Industrial Control Systems. He has a strong development and software engineering background. He is also a seasoned leader in the areas of security and software engineering. Before joining IOActive, Cassidy served for a number of years as Technical Manager and Security Technical Lead for IGE Energy Services, Ltd, part of GE Energy. He has hands-on experience with PowerOn Fusion, a leading Outage Management System/Distribution Management System (OMS/DMS) solution for electricity distribution management. He also led a team of developers in producing new functionality within the core product and worked with customers to understand their requirements. Colin Cassidy has a BSc (Hons) in Computing Science from the University of Glasgow. Twitter: @parttimesecguy Éireann Leverett hates writing bios in the third person. He once placed second in an Eireann Leverett impersonation contest. He likes teaching the basics, and learning the obscure. He is sometimes jealous of his own moustache for being more famous than he is. If he could sum up his life in one sentence; he wouldn't. That would be a life-sentence! He is primarily known for smashing the myth of the air-gap in industrial systems with his master's thesis, finding authentication bypasses for industrial ethernet switches, and working with incident response teams to improve their understanding of industrial control systems security. He believes security takes an awful lot more than penetration-testing and speaks often about the wider effects of embedded system insecurity. Twitter: @blackswanburst Robert M. Lee is a co-founder of Dragos Security LLC where he has a passion for control system protocol analysis, digital forensics, and threat intelligence research. He is also an active-duty U.S. Air Force Cyber Warfare Operations Officer where he has been a member of multiple computer network defense teams including his establishing and leading of a first-of-its-kind ICS/SCADA threat intelligence and intrusion analysis mission. Robert received his BS from the United States Air Force Academy and his MS in Cybersecurity Digital Forensics from Utica College. He is a passionate educator and teaches in the ICS and Forensics programs at SANS and is an Adjunct Lecturer at Utica College where he teaches in their MS Cybersecurity program. Robert is also the author of 'SCADA and Me' and is currently pursuing his PhD at Kings College London with research in control system cyber security. He routinely publishes academic and industry focused works in a wide variety of journals and publications; additionally he has presented at conferences around the world. Twitter: @RobertMLee
Views: 2576 DEFCONConference
What is the end to end principle?
 
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What is the end to end principle? The internet protocol is simple. And keeping it simple keeps the core internet simple. But it also reflects a deeper design principles where complexity is intentionally pushed out to the network edge. This is called the "end to end principle", and it is one of the key internet design principles. Credits: Talking: Geoffrey Challen (Assistant Professor, Computer Science and Engineering, University at Buffalo). Producing: Greg Bunyea (Undergraduate, Computer Science and Engineering, University at Buffalo). Part of the https://www.internet-class.org online internet course. A blue Systems Research Group (https://blue.cse.buffalo.edu) production.
Views: 9878 internet-class
Cisco - CCENT/CCNA R&S (100-105) - OSI Model Part 2. 06
 
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Sixth Video in a the series covering all elements of The Cisco Certified Entry Networking Technician (CCENT) 100-105 ICND1 v3 Blueprint Section: Network Fundamentals We finally get a slice of the action, starting to review each layer of the OSI model in more detail. In this video we finish the upper layers and squeeze in the Transport Layer at the end. We understand the following: Application Layer -Interacts with user applications (Networking applications like Web browsers and Email Clients) -This is the layer our end users sit -Applications which sit here include: telnet, FTP, SFTP, HTTP, SMTP, POP3, DNS and many many more Presentation Layer -Performs encryption, decryption, compression and decompression -Ensures the data is presented correctly -Protocols which sit here include: JPEG, ASCII, .MP3, .WAV Session Layer -Tracks connections between hosts and remote hosts -Duplex negotiations -Keeps track of multiple sessions using port numbers -Can reserves port numbers (Depending on application) which are later passed down to the TCP layer for TCP to populate its PDU Transport Layer -Two main protocols work here: TCP/UDP -This is the layers which populates its PDU with Port numbers -These ports are sometimes reserved by the session layer or by the Transport Layer TCP - Connection-Oriented -Data is exchange reliably using sequence numbers, acknowledgments, flow-control and retransmissions -TCP setups a three ways handshake to achieve the above UDP -Connectionless -No reliability or retranmission -Just sends and hopes for the best If you find this video to be helpful, please do leave a Like or better still, subscribe. This allows me to establish how helpful these videos are and if I should continue with this video series 📚Books! 🎓🎓 Cisco CCENT official 100-105 - Recommended books - https://amzn.to/2VlGPBi Cisco CCENT 100-105 - Recommended books - https://amzn.to/2Jgkwvw Cisco ICND2/CCNA official 200-105 - Recommended books - https://amzn.to/2HgTu3z Cisco CCENT 200-105 - Recommended books - https://amzn.to/2WDtaXW Both CCENT/CCNA books as a pair! - https://amzn.to/2HhqIzL My fav books: Routing TCP/IP Volume I (CCIE Professional Development): Authorized CCIE Preparation: v. 1 - https://amzn.to/2LEGLgx Routing TCP/IP (CCIE Professional Development): Volume 2 - https://amzn.to/2VgobuB Learn all about TCP: - https://amzn.to/2JyHY6s Another great TCP book - https://amzn.to/2EfO0ph 📚Books 🎓🎓 👍👍 Thanks for Watching 👍👍 Want to give back? ☕ Buy me a Coffee - https://www.buymeacoffee.com/VgtLD9lcK You can find me on: ✉✉ Twitter - @RyanBeney - https://twitter.com/ryanbeney Linkedin - /RyanBeney - https://uk.linkedin.com/in/ryanbeney Facebook - /RyanBeneyNetworking - https://www.facebook.com/RyanBeneyNet...
Views: 35293 Ryan Beney
CCNA And CCENT Practice Exam: General Router Commands
 
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Test your knowledge of RAM, ROM, Flash, NVRAM, Setup Mode, and other CIsco routing features and commands with this Cisco certification video practice exam! When you're done here, visit http://www.thebryantadvantage.com/Tutorials.htm for over 275 additional CIsco tutorials, videos, practice exams, and more! To your success, Chris Bryant CCIE #12933 http://www.thebryantadvantage.com
Views: 22169 Chris Bryant
"The RootFather":  A CCNA And CCENT Video Boot Camp
 
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Join 60,000+ students at http://bit.ly/1lnHaee today, and get my CCNA Security Video Boot Camp FREE with any purchase now through July 31! In today's Video Boot Camp, we'll work with a live Cisco switch to use four different methods to determine whether we're on a root switch or not. This is an important skill to have, both in the real world and on your certification exams! Thanks for watching, for subscribing, and for making The Bryant Advantage part of your success story! Chris Bryant CCIE #12933 "The Computer Certification Bulldog"
Views: 1990 Chris Bryant
Intranet vs Internet Computer Networking Tutorial in Hindi Urdu 5
 
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What is Internet and what are intranets. Learn the difference b/w Intranet and Internet in this Computer Networking Tutorial in Hindi Urdu 5 ifactner educational video tutorial.
Views: 12540 ifactner
Computer Network introduction and basics
 
05:01
Computer Networks: A Systems Approach, 5e Larry L. Peterson and Bruce S. Davie
Views: 166 Castor Classes
End to End Argument - Georgia Tech - Network Implementation
 
01:33
Watch on Udacity: https://www.udacity.com/course/viewer#!/c-ud436/l-3641859041/m-662258718 Check out the full Computer Networking course for free at: https://www.udacity.com/course/ud436 Part of the Georgia Tech online Master's program: https://www.udacity.com/georgia-tech
Views: 4009 Udacity
Introduction to Segment Routing
 
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This video talks about how Segment Routing architecture came into the existence and its evolution from MPLS and IP Routing. Learn more at http://cs.co/90048K9yE.
Views: 60866 Cisco
How To Connect Your PSP To WiFi In 2018 [WiFi Not Supported Fix!]
 
05:03
Hi guys, Tech James here, For this tutorial, I’ll show you guys how to connect your PSP to any modern Wi-Fi, The PSP only supports the old WPA connection, so you will need to enable that in your routers settings to be able to use the Wi-Fi on your PSP. This video is for educational purposes only. ➤ (CHEAP STEAM GAMES): https://www.g2a.com/r/techjames Music: LAKEY INSPIRED - Blue Boi (https://www.youtube.com/watch?v=wAukvwLCVbM) Music: LAKEY INSPIRED - This Feeling (https://www.youtube.com/watch?v=kqh0r8lEo5M) Please Like + Subscribe This video can be removed, contact me directly: [email protected] - Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research.
Views: 102928 Tech James
How to be anonymous on the web? Tor, Dark net, Whonix, Tails, Linux
 
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Why should you become anonymous? And how can you even be anonymous on the web? Watch to learn how to use essential anonymity tools to become anonymous on the web. If you like to protect yourself on the web and want to support my channel, sign up for NordVPN at https://nordvpn.org/thehatedone or use my coupon code 'thehatedone' at the checkout to save 75%! In this online anonymity tutorial, you will learn what it means to be anonymous on the web, how to use essential anonymity tools, and you’ll learn some tips and habits to help you protect your online anonymity even better. You will learn how to use Tor and install and run Tor Browser. You'll discover how to install Whonix and how it can help you become anonymous even more. We'll learn how to install Tails and boot from a live USB. You'll be introduced to Linux, mostly PureOS, Trisquel and Linux Mint Cinnamon. Online anonymity is not something that’s just for criminals or persecuted individuals. It’s important if you don’t want a record of your interests, preferences, searches, emails, messages, contacts, browsing history, and social media activity stored indefinitely on remote data centers. Bitcoin: 1C7UkndgpQqjTrUkk8pY1rRpmddwHaEEuf Dash Xm4Mc5gXhcpWXKN84c7YRD4GSb1fpKFmrc Litecoin LMhiVJdFhYPejMPJE7r9ooP3nm3DrX4eBT Ethereum 0x6F8bb890E122B9914989D861444Fa492B8520575 All the tools for anonymity on the web: Tor Browser Bundle https://www.torproject.org/ DuckDuckGo onion address https://3g2upl4pq6kufc4m.onion/ Tails https://tails.boum.org/ NoScript Tutorial https://www.youtube.com/watch?v=AC4ALEKZRfg Whonix https://www.whonix.org/ VirtualBox https://www.virtualbox.org/ Orbot, Orfox, and F-Droid https://guardianproject.info/apps/ LineageOS https://lineageos.org/ PureOS https://www.pureos.net Trisquel https://trisquel.info/ Linux Mint https://linuxmint.com/ Qubes OS https://www.qubes-os.org/ Free encrypted cloud storage https://nextcloud.com/ Sources: On online anonymity https://www.whonix.org/wiki/Documentation SPYING https://www.washingtonpost.com/business/technology/google-tracks-consumers-across-products-users-cant-opt-out/2012/01/24/gIQArgJHOQ_story.html?noredirect=on https://www.theguardian.com/technology/2016/oct/21/how-to-disable-google-ad-tracking-gmail-youtube-browser-history https://www.theguardian.com/technology/2015/jun/23/google-eavesdropping-tool-installed-computers-without-permission https://news.softpedia.com/news/microsoft-edge-sends-browsing-history-to-microsoft-how-to-block-it-490684.shtml https://adexchanger.com/data-exchanges/a-marketers-guide-to-cross-device-identity/ https://www.recode.net/2016/6/14/11926124/facebook-ads-track-store-visits-retail-sales https://www.zdnet.com/article/facebook-turns-user-tracking-bug-into-data-mining-feature-for-advertisers/ https://techcrunch.com/2017/03/07/facebook-advanced-measurement/ https://www.propublica.org/article/google-has-quietly-dropped-ban-on-personally-identifiable-web-tracking Lobbying https://www.wsj.com/articles/tech-executives-warn-of-overregulation-in-privacy-push-1537987795?mod=pls_whats_news_us_business_f https://www.recode.net/2018/4/22/17267740/facebook-record-lobbying-spending-tech-companies-amazon-apple-google https://theintercept.com/2018/09/28/california-privacy-law-big-tech/ https://www.theregister.co.uk/2011/05/05/google_backs_do_not_track_opposition/ https://arstechnica.com/tech-policy/2017/05/google-and-facebook-lobbyists-try-to-stop-new-online-privacy-protections/ https://www.recode.net/2017/10/21/16512414/apple-amazon-facebook-google-tech-congress-lobbying-2017-russia-sex-trafficking-daca https://news.softpedia.com/news/Facebook-to-Follow-Google-Microsoft-in-Cutting-Ties-with-Conservative-Lobby-Group-ALEC-459747.shtml The Chinese Google search engine https://theintercept.com/2018/09/14/google-china-prototype-links-searches-to-phone-numbers/ Music by Chuki Beats https://www.youtube.com/user/CHUKImusic Follow me: https://twitter.com/The_HatedOne_ https://www.bitchute.com/TheHatedOne/ https://www.reddit.com/r/thehatedone/ https://www.minds.com/The_HatedOne The footage and images featured in the video were for critical analysis, commentary and parody, which are protected under the Fair Use laws of the United States Copyright act of 1976.
Views: 306665 The Hated One
Folklore of Network Protocols
 
01:17:36
UCL Computer Science MSc Open Day Wednesday 20 March 5pm to sign up see http://www.cs.ucl.ac.uk/admissions/msc_open_day_wednesday_20_march_2013/ It's very hard to understand the field of network protocols by focusing on the details of one particular protocol. Issues are clouded by marketing hype and protocol group rivalry. What is really intrinsic to the differences between one protocol and another? This talk covers some of the ways in which solutions can differ, as well as demystifying some especially confusing pieces of this field, such as what is really the difference between "layer 2 solutions" and "layer 3 solutions", why we need both Ethernet and IP, the evolution of Ethernet from its original invention (CSMA/CD) through spanning tree and now TRILL, and some things that people assume to be true that may not be. The talk includes some possible research areas. Radia Perlman is a Fellow at Intel Labs, specializing in network protocols and security protocols. Many of the technologies she designed have been deployed in the Internet for decades, including link state routing, the spanning tree algorithm, and TRILL, which improves upon spanning tree while still "being Ethernet". She has also made contributions to network security, including assured delete of data, design of the authentication handshake of IPSec, trust models for PKI, and network infrastructure robust against malicious trusted components. She is the author of the textbook "Interconnections: Bridges, Routers, Switches, and Internetworking Protocols", and co-author of "Network Security". She has a PhD from MIT in computer science, holds over 100 issued patents, and has received various industry awards including lifetime achievement awards from ACM's SIGCOMM and Usenix, and an honorary doctorate from KTH.
Views: 2230 UCLComputerScience
What is DNS  And How DNS Works || [Tamil]
 
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In this Videos I am Explaining about What is DNS And How DNS Works in Tamil What is DNS And How DNS Works in Plain English https://youtu.be/ChEZOWeN71o Resolving Name Server, Root Name Server, TLD Name Server, Authoritative Name Server
Views: 14926 PGR Spot
The OSI and TCP IP Model
 
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Welcome to the ITFreeTraining video on the OSI Model. This video will look at the OSI model and in particular, how it relates to the internet protocol. Access the rest of the course http://ITFreeTraining.com/ipv4 Download the PDF handout http://ITFreeTraining.com/handouts/ipv4/osi-tcp-model.pdf OSI Model 0:13 – The OSI was first developed in the 1980s. It is a conceptual model aimed at standardizing network communication. The model was not implemented in its entirety, but it is still referenced today. The OSI model has 7 different layers. Each layer is directly linked to the layer above and below it, if a layer exists. As data travels down the OSI model, each layer adds additional information. This continues until it reaches the last layer. It is then transmitted across the network. Once the other side receives the data, the process is reversed. You can see how each layer requires the layer or layers adjacent to it. Also it is not possible to skip a layer. All communication either starts at the top layer or is received at the bottom layer. At the top, is the application layer. This layer provides the application programming interface. The next layer, presentation, is responsible for data formatting. This includes encoding, encryption and compression. The next layer, session, is responsible for connecting and reconnection of the network if it is lost. This also includes authentication of the connection. The next layer, transport, manages packet size and the resending of data if it was lost or corrupted. The following layer, network, routes data between different nodes in the network. The second to last layer, data link, is responsible for flow and error control. For example, ensuring more data is not sent out then the local network can handle. The last layer, physical, communicates directly with the network and is responsible for transmitting data on the network. As stated, the OSI model is a conceptual model and not directly implemented in modern networking, but is referenced from time to time. OSI Model & TCP/IP 2:20 – To demonstrate this, I will now compare it to the TCP/IP model. TCP stands for Transmission Control Protocol and IP as we know stands for Internet Protocol. A number of protocols are used to make internet communication possible. These protocols were grouped together under the name TCP/IP. Nowadays you don’t hear this name so much, generally you will hear just IPv4 or IPv6 but it is still valid. As you can see, TCP/IP has 4 different layers as opposed to the 7 layers of the OSI model. It is shown as an exact fit, however in reality it does not fit the OSI model exactly. The application layer maps to the first and third layers of the OSI model. Transport is a direct 1 to 1 mapping. The internet layer maps directly to the network layer and the last two layers of the OSI model map to the network access layer. Protocols in TCP/IP 3:25 – Even though there are only 4 layers, each layer can be broken down further. As seen here, at the application layer there are a number of different protocols. You can see how software will generally use protocols to access services on the internet. The protocols themselves will access the transport layer. At this layer, there is a choice of TCP and UDP. TCP stands for Transmission Control Protocol. TCP gives reliable transmissions. If a packet is lost in transmission, the protocol will notice it has not arrived and request a resend. In contrast, UDP, which stands for User Datagram Protocol, is unreliable transmission. If a packet goes missing in transit, it is not resent. Think of UDP like mailing a letter. Once you mail the letter, you have no idea if it will arrive at its destination. The next layer determines if IPv4 or IPv6 is used. At the bottom is the device driver which communicates with the network. The most common type is Ethernet, however any other network devices are supported. You can see how TCP/IP is very modular. This makes it easy to add additional protocols and add additional hardware when they’re developed. I will now have a look at how the OSI model may get referenced today. Our description is too long so please visit http://itfreetraining.com/ipv4/osi-tcp-model for the full description. See http://YouTube.com/ITFreeTraining or http://itfreetraining.com for our always free training videos. This is only one video from the many free courses available on YouTube. References “OSI model” https://en.wikipedia.org/wiki/OSI_model “Internet protocol suite” https://en.wikipedia.org/wiki/Internet_protocol_suite Credits Trainer: Austin Mason http://ITFreeTraining.com Voice Talent: HP Lewis http://hplewis.com Companion Document: Phillip Guld http://philguld.com Video Production: Kevin Luttman http://www.KevinLuttman.com
Views: 22014 itfreetraining
Lecture - 31 Cellular Telephone Systems
 
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Lecture Series on Data Communication by Prof.A. Pal, Department of Computer Science Engineering,IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in
Views: 47928 nptelhrd
CCNA And CCENT 2:00 Pop Quiz: "Values"
 
02:25
Get CCNA Security certified FREE in August when you join my CCNA Video Boot Camp at http://bit.ly/1mZhZCW ! In today's 2:00 Video Pop Quiz, I'll show you a config from a live Cisco router and ask you some pointed questions. Hopefully your answers are just as pointed! Let's get started! Chris Bryant "The Computer Certification Bulldog" http://www.youtube.com/user/ccie12933
Views: 2366 Chris Bryant
OSI Model (Part 1) Application Presentation Session Layer | TechTerms
 
06:37
Learn ISO OSI 7 layer network model, OSI Stack, Open System Interconnection model or networking model. Application, Presentation, and Session layers are explained. Function and use of OSI network model. Protocols in computer network layers of OSI model. OSI Model defines and is used to understand – How data is transferred from one computer to another in a computer network? In the most basic form, two computers (end-points) connected to each other with LAN Cable (Network Media) and connectors (RJ45) sharing data with the help of NICs forms a network. But if one computer is based on Microsoft Windows and the other one has MAC OS installed, then how these two computers are going to communicate with each other? In order to accomplish successful communication b/w computers or networks of different architectures, 7-layered OSI Model or Open System Interconnection Model was introduced by International Organization for Standardization in 1984. Facebook: https://www.facebook.com/DGTechTerms/ Twitter: https://twitter.com/Technical_Terms
Views: 11833 TechTerms
IP Addressing - Georgia Tech - Network Implementation
 
01:37
Watch on Udacity: https://www.udacity.com/course/viewer#!/c-ud436/l-1761398539/m-634349399 Check out the full Computer Networking course for free at: https://www.udacity.com/course/ud436 Part of the Georgia Tech online Master's program: https://www.udacity.com/georgia-tech
Views: 1335 Udacity
How to Setup an Android VPN connection
 
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I show you how to setup a VPN connection on your Android device. ***Sponsored*** NordVPN offers double encryption feature on their intuitive and easy to use apps. Ranked as editor’s choice VPN by PCMag. Over 700 servers worldwide. Connect up to 6 devices under 1 account. Download android app - https://goo.gl/KIAMVR or visit NordVPN website - http://bit.ly/2gZB63x Gear I use: http://amzn.to/1TFQSOa Website: http://www.zollotech.com Follow me on Google+ : http://google.com/+zollotech Follow me on Twitter: http://www.twitter.com/zollotech Facebook page: http://on.fb.me/erkj2g
Views: 3001694 zollotech
SPNGN 1: Common Network Attacks
 
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This video is a sample from Skillsoft's video course catalog. After watching it, you will be able to identify common network attacks. Dan Young has served as a Cisco Certified Systems Instructor (CCSI) in Cisco Systems training since 2001. He achieved his Cisco Certified Internet Expert (CCIE #11322) certification in Routing and Switching in the year 2003. Having taught over 400 Cisco ILT classes, primary in the area of CCNA and CCNP, Dan honed his delivery of complex Cisco topics. Now a CCIE Emeritus, Dan manages a team of Cisco, Microsoft, VMware and PMI instructors. He still maintains his passion for the instruction of IT topics, his favorite of which are Cisco routing and switching. Skillsoft is a pioneer in the field of learning with a long history of innovation. Skillsoft provides cloud-based learning solutions for our customers worldwide, who range from global enterprises, government and education customers to mid-sized and small businesses. Learn more at http://www.skillsoft.com. https://www.linkedin.com/company/skillsoft http://www.twitter.com/skillsoft https://www.facebook.com/skillsoft
Views: 235 Skillsoft YouTube
DNS Vulnerability Quiz - Georgia Tech - Software Defined Networking
 
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Watch on Udacity: https://www.udacity.com/course/viewer#!/c-ud436/l-1723478657/m-438458662 Check out the full Computer Networking course for free at: https://www.udacity.com/course/ud436 The Georgia Tech online Master's program: https://www.udacity.com/georgia-tech
Views: 225 Udacity
UNBOXING A QUANTUM COMPUTER! – Holy $H!T Ep 19
 
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Learn more about D-Wave: http://geni.us/9B99IE The coldest place in the known universe is on Earth! It's quantum computing company D-Wave's HQ, and they actually let Linus in! New members who sign up for Dollar Shave Club get their 1st month of the Executive Razor with a tube of Dr. Carver's Shave Butter for only $5 at https://dollarshaveclub.com/linus (USA) Check out Coolermaster's 25th Anniversary Cosmos II here: http://geni.us/TNgTOm Buy Quantum Computers on Amazon LOL: http://geni.us/wADMk9 Discuss on the forum: https://linustechtips.com/main/topic/803181-unboxing-a-quantum-computer-%E2%80%93-holy-ht-ep-19/ Our Affiliates, Referral Programs, and Sponsors: https://linustechtips.com/main/topic/75969-linus-tech-tips-affiliates-referral-programs-and-sponsors Linus Tech Tips merchandise at http://www.designbyhumans.com/shop/LinusTechTips/ Linus Tech Tips posters at http://crowdmade.com/linustechtips Our production gear: http://geni.us/cvOS Twitter - https://twitter.com/linustech Facebook - http://www.facebook.com/LinusTech Instagram - https://www.instagram.com/linustech Intro Screen Music Credit: Title: Laszlo - Supernova Video Link: https://www.youtube.com/watch?v=PKfxmFU3lWY iTunes Download Link: https://itunes.apple.com/us/album/supernova/id936805712 Artist Link: https://soundcloud.com/laszlomusic Outro Screen Music Credit: Approaching Nirvana - Sugar High http://www.youtube.com/approachingnirvana Sound effects provided by http://www.freesfx.co.uk/sfx/
Views: 5949480 Linus Tech Tips
What Is A Hub In Computer Networks?
 
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A hub is less sophisticated than a switch, the latter of jul 18, 2017. What is a hub in computer networks? Youtubewhat (networking)? Definition from techopedia. Unfortunately, the terms are also often misused certiology's computer network devices tutorial explains hub, switch, router, modem, card and bridges a hub is node that broadcasts data to every or ethernet based device connected it. What is a hub? Computer hope. When a packet arrives at one port, it is copied to the other ports so that all segments of lan can see packets common connection point for devices in network. The following computer science facts and statistics provide a quick introduction to mar 21, 2017 in networking, hub is small, simple, inexpensive electronic device that joins multiple computers together. Many expressions hub (network science), referring to a node with huge number of links; Email hub, computer system dedicated relay e mail messages; Hubs and authorities, scheme used for ranking web pages; Usb ethernet in the context networking, is hardware device that relays communication data. A hub contains multiple ports. Htm url? Q webcache. What is hub? Its types & applications in networking wiki for you. Unlike a network switch or router, hub has no routing tables intelligence on where to send information and broadcasts all data across each connection finally, what is hub? A common point for devices in. Hub definition the tech terms computer dictionary. Say i'm a hacker and i get the ip of one your computers somehow dec 1, 2006 tcp networks are most common type network today. A hub contains multiple portsWhat is a hub? Computer hope. With such a network, number of computers or nodes can communicate with jan 1, 1999 hubs and switches are different types network equipment that connect devices. An ethernet hub, active network repeater multiport repeater, or simply hub is a hardware device for connecting multiple devices the central part of wheel that connects axle to itself. A hub sends data packets (frames) to all devices on a network, apr 13, 2013 what is networking device which receives signal from the source, amplifies it and send multiple destinations or computers mar 30, 2010 hubs, switches, routers are let you connect one more other computers, networked devices, contains well written, thought explained computer science network (hub, repeater, bridge, switch, router gateways) in days of coaxial networking, hubs were often called 'bridges'. They differ in the way that they pass on network traffic he has built, designed and maintained computer networks of all sizes a hub is common connection point for devices. Googleusercontent search. Computer network devices hub, switch, router, bridges, what is hub? Definition from whatis searchnetworking. It has several ethernet ports that are feb 23, 2013 hubs, switches, and routers all computer networking devices with varying capabilities. Hubs are commonly used to connect segments of a lan. What's the difference between a hub, sw
Views: 85 Your Question I
Site to Site VPNs for CCNAs
 
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In this bonus video for StormWind.com CCNA students - Anthony Sequeira walks you through the site to site VPN configuration.
Views: 163425 StormWind Studios