Packet Tracer file (PT Version 7.1): https://goo.gl/HzpBDW Get the Packet Tracer course for only $10 by clicking here: https://goo.gl/vikgKN Get my ICND1 and ICND2 courses for $10 here: https://goo.gl/XR1xm9 (you will get ICND2 as a free bonus when you buy the ICND1 course). For lots more content, visit http://www.davidbombal.com - learn about GNS3, CCNA, Packet Tracer, Python, Ansible and much, much more. #CCNA #PacketTracer #CCENT DHCP snooping is a security feature that acts like a firewall between untrusted hosts and trusted DHCP servers. The DHCP snooping feature performs the following activities: •Validates DHCP messages received from untrusted sources and filters out invalid messages. •Rate-limits DHCP traffic from trusted and untrusted sources. •Builds and maintains the DHCP snooping binding database, which contains information about untrusted hosts with leased IP addresses. •Utilizes the DHCP snooping binding database to validate subsequent requests from untrusted hosts. Other security features, such as dynamic ARP inspection (DAI), also use information stored in the DHCP snooping binding database. DHCP snooping is enabled on a per-VLAN basis. By default, the feature is inactive on all VLANs. You can enable the feature on a single VLAN or a range of VLANs. The DHCP snooping feature is implemented in software on the route processor (RP). Therefore, all DHCP messages for enabled VLANs are intercepted in the PFC and directed to the RP for processing. Trusted and Untrusted Sources The DHCP snooping feature determines whether traffic sources are trusted or untrusted. An untrusted source may initiate traffic attacks or other hostile actions. To prevent such attacks, the DHCP snooping feature filters messages and rate-limits traffic from untrusted sources. In an enterprise network, devices under your administrative control are trusted sources. These devices include the switches, routers, and servers in your network. Any device beyond the firewall or outside your network is an untrusted source. Host ports and unknown DHCP servers are generally treated as untrusted sources. A DHCP server that is on your network without your knowledge on an untrusted port is called a spurious DHCP server. A spurious DHCP server is any piece of equipment that is loaded with DHCP server enabled. Some examples are desktop systems and laptop systems that are loaded with DHCP server enabled, or wireless access points honoring DHCP requests on the wired side of your network. If spurious DHCP servers remain undetected, you will have difficulties troubleshooting a network outage. You can detect spurious DHCP servers by sending dummy DHCPDISCOVER packets out to all of the DHCP servers so that a response is sent back to the switch. In a service provider en ... https://www.youtube.com/watch?v=u3EmleryJ9A

Learn how to automate networks using Python version 3. Udemy: Get the course for $10 here: https://goo.gl/QYC988 GNS3 Academy: Get the course for $10 here: https://goo.gl/vnZJhg DavidBombal.com: Course is included in your subscription: http://www.davidbombal.com Don't get left behind. You learning network automation and network programmability using Python are critical for your future as a network engineer. Course coming in April 2018 ... https://www.youtube.com/watch?v=dKS6WcIs_7w

Is AI going to end the world? No more jobs in Cybersecurity? Are we going to survive the attacks? Big thanks to Brilliant for sponsoring this video! Get started with a free 30 day trial and 20% discount: https://brilliant.org/DavidBombal // Mr Robot Playlist // https://www.youtube.com/playlist?list=PLhfrWIlLOoKNYR8uvEXSAzDfKGAPIDB8q // David's SOCIAL // Discord: https://discord.com/invite/usKSyzb Twitter: https://www.twitter.com/davidbombal Instagram: https://www.instagram.com/davidbombal LinkedIn: https://www.linkedin.com/in/davidbombal Facebook: https://www.facebook.com/davidbombal.co TikTok: http://tiktok.com/@davidbombal YouTube: https://www.youtube.com/davidbombal // Occupy The Web social // Twitter: https://twitter.com/three_cube // OTW classes // Hacker's Arise Pro Subscription: https://hackers-arise.com/online-store/Member-PRO-p444073646/?afmc=1d Get 3 year's access to all live courses: https://hackers-arise.com/online-store/Become-a-Hackers-Arise-Subscriber-3-years-of-training-p134507114/?afmc=1d // Occupy The Web books // Linux Basics for Hackers: https://amzn.to/3JlAQXe Getting Started Becoming a Master Hacker: https://amzn.to/3qCQbvh Top Hacking Books you need to read: https://youtu.be/trPJaCGBbKU // Other books // The Linux Command Line: https://amzn.to/3ihGP3j How Linux Works: https://amzn.to/3qeCHoY The Car Hacker’s Handbook by Craig Smith: https://amzn.to/3pBESSM Hacking Connected Cars by Alissa Knight: https://amzn.to/3dDUZN8 // Occupy The Web Website / Hackers Arise Website // Website: https://www.hackers-arise.com/?afmc=1d OTW Mr Robot series: https://www.hackers-arise.com/mr-robot Want to learn more from Occupy the Web? You can join his classes using these links: Hacker's Arise Pro Subscription" https://hackers-arise.com/online-store/Member-PRO-p444073646/?afmc=1d Get 3 year's access to all live courses: https://hackers-arise.com/online-store/Become-a-Hackers-Arise-Subscriber-3-years-of-training-p134507114/?afmc=1d // MY STUFF // https://www.amazon.com/shop/davidbombal // SPONSORS // Interested in sponsoring my videos? Reach out to my team here: sponsors@davidbombal.com // MENU // 00:00 Coming Up 00:32 Thanks Brilliant! (Sponsor) 02:05 Why this video? 03:35 Cyber Security Future 04:51 AI 06:03 Don't Fall Behind 07:29 ChatGPT 08:47 AI Helps Both Sides 10:14 AI Spear Phishing 14:26 Asking AI Who Is OTW? 16:12 AI Changes And Updates 18:26 Spear Phishing Definition 20:01 Almost Got Scammed By AI 21:31 Data Leaks 21:31 Email Phishing Story 24:33 Snort 25:59 Splunk 27:39 AI Code Problems 28:36 The Truth About AI Jobs 30:25 Tricking The AI 33:54 Generate Generic Code With AI 36:31 The History 40:00 AI VS Human Thinking 41:53 OTW Course 42:10 Pegasus 43:10 Outro ai chatgpt chat gpt gpt4 google bard artificial intelligence hacking ai ai hacking Please note that links listed may be affiliate links and provide me with a small percentage/kickback should you use them to purchase any of the items listed or recommended. Thank you for supporting me and this channel! Disclaimer: This video is for educational purposes only. #ai #chatgpt #hacking ... https://www.youtube.com/watch?v=OJxRruHrSow

Is your CCTV secured? Are your IP cameras safe? Too easy to hack? This is my third interview with the professional hacker Occupy The Web. In this video we discuss hacking CCTV, IP cameras and SCADA (supervisory control and data acquisition). // MENU // 00:00 ▶️ It Didn't Stop Us! 00:43 ▶️ YouTube Is Not Realistic 02:58 ▶️ Hacking Is Boring? 04:12 ▶️ In An Alternative Universe 04:35 ▶️ High vs Low Value Targets 07:09 ▶️ Hacking Ukraine CCTV Cameras 08:04 ▶️ Why Aren't Cameras Well Protected? 10:48 ▶️ Why Hack Ukraine CCTV Cameras? 12:45 ▶️ Finding Online Systems Anywhere In The World 14:47 ▶️ Don't Cameras Have Passwords? 17:36 ▶️ Hack My Spouse//The Most Common Request 19:30 ▶️ Convert Tools To Cyrillic? 20:20 ▶️ Remote Camera Hacking 20:56 ▶️ Camera Hacking Summary 21:13 ▶️ Dictionary Attack or Brute Force for Remote Hacking? 22:32 ▶️ Remote Hacking Takes Teamwork 22:52 ▶️ Cameras Blocking Login Attempts 23:23 ▶️ Bad Practices//How To Secure CCTV Cameras 24:42 ▶️ Don't Be An Easy Target! 25:43 ▶️ Basic Security To Have On Your Systems 28:42 ▶️ Users Aren't The Flaw! 30:07 ▶️ Russia SCADA Attacks 30:38 ▶️ SCADA Swiss Army Knife 31:21 ▶️ Stealing Schneider Password Hashes 33:40 ▶️ DDoSing SCADA Systems Is Deadly 36:53 ▶️ Russian Hackers//Overrated? 40:22 ▶️ SCADA Malware Used On Ukraine Systems 42:54 ▶️ Warning//Russia Coming After Hackers 44:16 ▶️ Phishing Attempts on OTW 45:07 ▶️ How To Protect Yourself 46:00 ▶️ Social Engineering//Most Major Hacks 47:46 ▶️ Social Engineering//Pentesting 49:11 ▶️ SCADA Malware//Stuxnet 50:56 ▶️ SCADA Malware//Triton 51:25 ▶️ Bhopal Disaster//What Could Happen 52:39 ▶️ Future Videos//Leave A Comment! // Previous videos // OTW video 1: https://youtu.be/GudY7XYouRk OTW video 2: https://youtu.be/uXbGQiXsRes // David's SOCIAL // Discord: https://discord.com/invite/usKSyzb Twitter: https://www.twitter.com/davidbombal Instagram: https://www.instagram.com/davidbombal LinkedIn: https://www.linkedin.com/in/davidbombal Facebook: https://www.facebook.com/davidbombal.co TikTok: http://tiktok.com/@davidbombal YouTube: https://www.youtube.com/davidbombal // Occupy The Web social // Twitter: https://twitter.com/three_cube // Occupy The Web books // Linux Basics for Hackers: https://amzn.to/3JlAQXe Getting Started Becoming a Master Hacker: https://amzn.to/3qCQbvh // Occupy The Web Website / Hackers Arise Website // Website: https://www.hackers-arise.com/ Shodan: https://www.hackers-arise.com/shodan Webcams: https://www.hackers-arise.com/how-to-hack-web-cams Ukraine Cameras: https://www.hackers-arise.com/post/we-have-successfully-accessed-many-ip-cameras-in-ukrainian-territor ... https://www.youtube.com/watch?v=ZGCScbV7vSA