Saturday, 15 September 2012

linux BASH - replacing text in a file

›
If you want to replace some text within a file, that is too large to open in a GUI application then, this is when you fall back on the comma...
Wednesday, 22 August 2012

Convert a Tab separated to Comma separated file

›
If you want to replace some text within a file, that is too large to open in a GUI application then, this is when you fall back on the comma...
Tuesday, 14 August 2012

MySQL distinct count of data across multiple tables

›
You want to do a unique count of data across multiple tables. Below is an example of getting a count of unique email addresses across two ...
Monday, 4 June 2012

Thwart attacks to your SFTP server with DenyHosts

›
For automated blocking of attackers try denyhosts. DenyHosts is a script intended to be run by Linux system administrators to help thwart SS...
Saturday, 24 March 2012

ClamAV 97.4 error while loading shared libraries

›
I installed ClamAV 0.97.4 on my Kubuntu system today, the installation went OK and no error were shown but when I tried to run virus scannin...
Tuesday, 6 March 2012

20 Linux System Monitoring Tools Every SysAdmin Should Know

›
Very good article on some essential monitoring tools. http://www.cyberciti.biz/tips/top-linux-monitoring-tools.html

iptables: Blocking attacking IP addresses

›
Excellent article on using iptables to block an attacking IP address. http://www.cyberciti.biz/faq/linux-iptables-drop/ I needed to blo...