Securing Cisco Devices with RADIUS | Bye Bye BOB!
In this video, we’re tightening up network security and showing you how to secure Cisco devices using RADIUS-based AAA (Authentication, Authorization, and Accounting)!
Join us as we say goodbye to our rogue engineer account, BOB (sorry Bob 👋), and replace local logins with a centralised, secure RADIUS setup. We’ll walk through the full configuration — from setting up the AAA model to pointing your Cisco gear to a RADIUS server for proper user management and accountability.
✅ What you’ll learn:
• Why local accounts are a security risk 🔓
• How to configure AAA on Cisco routers/switches 💻
• Integrating Cisco with a RADIUS server (FreeRADIUS)
• Testing login and verifying access control 🧪
• Removing backdoor accounts like BOB 🕵️♂️
Whether you’re a network engineer brushing up on your AAA skills or locking down your infrastructure, this video will give you a practical, hands-on demo.
Like, comment, and subscribe if you want more network security tutorials and Cisco labs!
🛠️ Stuff I Use 🛠️
EVE-NG - multivendor network emulation software.
Linux, Ubuntu, Debian
OSX, Windows
Networking hardware - Multi vendor
👨🏻💻 About Me:
Hi I'm Matt a Senior Network Engineer with over two decades of hands-on experience architecting, securing, and optimising high-availability networks across enterprise environments. I stream labs and create video content to help others level up their skills.
💻 Social:
Website: [null0labs.com](https://null0labs.com)
GitHub: [@null0labs](https://github.com/null0labs)
Instagram: [@null0labs]( / null0labs )
Twitter/X: [@null0labs]( / null0labs )
LinkedIn:[@mlewisonline]( / mlewisonline )
🙋🏻♂️ Questions or ideas? Drop them in the comments.
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