Few friends have asked me how to do mass find and replace text in files under linux. There are quite a bit of options in linux to achieve mass replacing of text in files. If you are doing it file by file, you can achieve that in vi by opening, running replace and [...]

There are quite a bit of antivirus software exist for Linux nowadays. One of the popular antivirus software is ClamAV. We will install Clam AntiVirus software from source and install it to a custom directory. We will also install gmp-devel package which installs GMP library. GMP library is used to verify [...]

Subversion is becoming more and more popular every day. To get quick installation guide, see my post on installing Subversion. Once you have Subversion set up, make sure you have backups of repository setup! This is one of those things most people forget to do. If you followed the installation guide [...]

I ran in to something really odd. I have been using crontab for LONG time and never seen this issue before. Basically I added new entry into my crontab by type crontab -e and as always saved/exited. For some reason that command never ran at the time I specified. I tested [...]

Today I was working on setting up public key authentication over SSH on few servers I inherited recently.  I have done this many times and never ran in to following error:
ssh_exchange_identification: Connection closed by remote host
After doing further research on the server I was trying to connect to (looking at logs) I noticed the server [...]