Management

Playing with text files in Linux

René Jorissen on February 26, 2010 1 Comment • Tags: #cut #linux #sort #text #uniq

I had a big Microsoft Event Viewer log file and I wanted specific information from the log file. At first I was thinking about using Microsoft Excel to do some filtering, but that didn’t really help. At the end Linux did the trick. I used Cygwin under Windows to extract the specific information. The raw … Read More

Configuration Example, Routing, Security, Switching

Secure HSRP configuration

René Jorissen on July 25, 2008 2 Comments • Tags: #authenticate #cdp #clear #dtp #hsrp #key-string #md5 #preempt #priority #spoofing #standby #text #timeout #wireshark #yersinia

A friend of mine works for a well known auditing and penetration testing company in the Netherlands. Recently we were talking about how he starts looking for flaws in network infrastructures. My friend told me that the first thing he does is simply starting WireShark and start looking at all the packets he receives. By … Read More