CentOS 6.3

How to Upgrade from CentOS 6.2 to CentOS 6.3

CentOS 6.3 had released on 2012-07-09 with the kernel version 2.6.32-279. CentOS is an Enterprise-class Linux Distribution derived from sources freely provided to the public by our Upstream OS Provider…

How to Enable mod_perl on Linux CentOS 6.3

The default apache configuration installed without mod_perl. This can be a good idea in order to minimize the number of things that can go wrong. This post will covers the…

How to Secure OpenSSH (SSHD) on Linux

OpenSSH is a open source alternative to the proprietary Secure Shell software. It is also the SSH connectivity tools that allows you to remotely login, transfer remote file via scp…

hard disk

How to Check Disk Read Write Speed in Linux

Measuring sequential disk performance is easy in linux as every modern Linux distribution comes with a command line utility called hdparm. Hdparm is a free tool to measure sequential disk…