Last year, I wrote a post about securing the Cisco IOS SSH server. It also makes sense to create one for Cisco ASA especially when my old post about enabling SSH on Cisco ASA was back in 2012. That blog post didn’t include the advanced configurations that will improve the security of […]

Securing Cisco ASA SSH server


Last year, I talked about migrating my FreeRADIUS server with two-factor authentication (2FA) to a Docker container. Today, I will cover how to configure FreeRADIUS 3.0 with two-factor authentication using Google Authenticator in a Docker container with Ubuntu 18.04 image. The new version of Ubuntu Server LTS edition (18.04 at this […]

FreeRADIUS 3.0 with Two-Factor Authentication (2FA)


Back in 2011, I wrote a post on how to enable SSH on Cisco routers and switches. Unfortunately, it didn’t contain any of the advanced configurations that will harden Cisco IOS SSH server. To be fair, there were older IOS software versions that didn’t include advanced SSH commands that I […]

Securing Cisco IOS SSH server




Several months ago, I covered how to add two-factor authentication (2FA) to FreeRADIUS using Google Authenticator. Today, I will cover the TACACS+ version of it. I’ve written a blog post on how to build tac_plus server using Ubuntu. The guide was written in 2011, while it’s an old blog post, […]

Adding Two-Factor Authentication to TACACS+


Passed #CISSP exam! Long exam but not that hard. — Andrew Roderos (@networkjutsu) May 22, 2017 Yesterday was a good day, at least for me. I passed the CISSP exam on my first attempt! While it wasn’t that hard (in my opinion) compared to other exams that I have taken, […]

Passed the CISSP exam!