The Red Hat Package Manager (RPM) is an essential tool for managing software on RPM-based Linux distributions such as Red…

I had created this rpm few months back. Now it is available for all users. This rpm have a simple…

GPG basic file encryption doesn’t required public/private key. But to make a encrypted file more secure you can use RSA/DSA…

The tar command is an essential tool for Linux users, especially for those who work with a large number of…

The zip command in Linux is a utility used for packaging a group of files into a zip archive. The…

AS we know, now a days it’s not safe to send and receive data over internet. There are many option…

RNDC controls the operation of a name server. rndc uses tcp connection to communicate with bind server for sending commands…

Command named-checkconf checks the syntax only of a DNS (bind) configuration file. The file is parsed and checked for syntax…

The DNS (Domain Name System) is a distributed system, used for translate domain names to IP address and vice a…

xargs is a Linux/Unix powerful command to build and execute command lines from standard input. It takes output of a…