A shell is a command line interpreter. Its a special program which takes input from standard input devices, convert it…

The Ext3 and Ext4 filesystem includes support of ACLs on files and directories. ACL provides more control permissions on file…

MySQL is a relational database management system, used for storing data in form of tables and records. You can insert,…

Postfix is fast and popular SMTP server widely used. The main job of postfix is to relay mail locally or…

Securing specific URLs in Apache is essential to protect important parts of your website. This guide will help you do…

Sometimes SQL Server logs files acquire a large space on the disk. In that case, we need to reduce the…

Linux provides a number of tools for network configuration. Most important network settings for you Linux machine to access over…

Packaging software into RPM (Red Hat Package Manager) format is an essential skill for developers and system administrators working with…

Using HAProxy, you can construct high-availability systems and HAProxy stats provide detailed statics. It can be used with popular servers…

Sometimes we need to insert a line at middle of the existing file. You can add line at specific line…