Apache versus nginx
Apache Apache is an open source HTTP server which is developed by an open community of programmers working together under...
What is cURL
cURL is software that mostly works as a command line utility and library used to transfer data on a variety...
What is TightVNC
A free and open source software, TightVNC is an app that connects remotely, via the internet, two or more computers....
What is PostgreSQL
PostgreSQL is a relational database system. It is available for free under an open source BSD license. A company does...
What is GIT
Git is a revision system running on most platforms, including Linux, POSIX, Windows and OS X. Like Mercurial, Git is...
What is Grep
Grep is a UNIX text search command. The name comes from the first letters of “global/regular expression/print”, which is a...
Hello-World
The “Hello, World!” is the first, simple and complete, program for beginners as well as a good program for testing...
How does IPtables work
There are two types of firewalls: 1. Filtering firewalls – which blocks specific packages. 2. Proxy Servers – Establishing network...
What is Puppet
Running a correct configuration on any system is extremely important. Regardless of their role, it is vital that each system...
What is YUM and how to use it
Yum is a utility for RedHat and Fedora Core Linux based distributions. It is used to install packages directly from...
Fuser
The fuser utility that comes preinstalled with Linux is a very powerful tool. As the name suggests, it provides information about...
Ansible
Ansible can be described as an open-source configuration management app, allowing a user to provision software and provides tools to...
