Log Commands on your Cisco Routers and Switches with Tacacs+ on Linux
I setup command logging with Tacacs+ on Linux this week. Let me show you how easy it is! I am (as always) doing this with Ubuntu linux and so I just have to apt-get the packages I need. espen@server:~$...
View ArticleConfiguring MySQL AAA Authentication and Accounting with Tacacs+ on Linux
So, been experimenting more with tacacs+ and got everything working out nicely with MySQL – so here is my tutorial! It seemed like I had to run out of my “Oh, I run ubuntu so I will just apt-get” luck...
View ArticleCisco IOS Dialin VPN Configuration With Radius Users in MySQL
Sometimes it can be preferable to have client initiated dialin tunneling, here’s a flexible solution! First off, the tunnel endpoint configuration (for example a 7200 router) Router#conf t...
View ArticleHow to setup a GRE tunnel on a Cisco Router
Hey peeps, it has been a while now… Sorry about that, I have had a lot of things on my mind lately. Sometimes I also have issues figuring about a new subject to write about, but I will try to take on...
View ArticleUsing Tcpdump in Linux to Analyze Network Traffic
Have you ever needed to see traffic in front of your eyes? There exists a tool in linux to do this. You can see it all, even .. passwords. I will just give you the commands to see different types of...
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Manipulate Routed Traffic With A Route-map
Sometimes.. when everything is failing, you’ll need to do some dirty hacks to get things the way you want. I’m going to show you how to modify the next-hop (where the packet is routed) with a route-map...
View ArticlePort Mirroring on Cisco – Monitoring the network
“We just bought a new IPS/IDS, just put it between us and our transit provider!”. Sounds slick, huh? This request seems easy, but do you really know if it will function like expected and not jam all...
View ArticleCisco IP Phone Configuration with Asterisk
Getting the Cisco IP Phone 7970 G to work together with the software PBX Asterisk was something I had my hands on a couple of years back. Here’s how you can get them talking together. You need a couple...
View ArticleHOWTO: Gathering All The Information About An IP Address
Would you like to know more about that attacker or who the sucker that draws all your bandwidth is? You can! The information is stored all around the internet, I will use one of the addresses that RIPE...
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Cisco 3750 Password Recovery
This password recovery method also applies to at least the: Cisco 2950, Cisco 2960, Cico 3550, Cisco 3560 and Cisco 3750 series. The only difference will be for how long you will hold the mode button,...
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