How to Enable, Disable and Install Yum Plug-ins
YUM plug-ins are small programs that extend and improve the overall performance of the package manager. A few of them
Initial Server Setup and Configurations on RHEL 7
In this tutorial we’ll discuss the first configuration steps you need to take care of after a fresh installation of
How to Fix “firewall-cmd: command not found” Error in RHEL/CentOS 7
firewall-cmd is a command line front-end for firewalld (firewalld daemon), a dynamic firewall management tool with D-Bus interface. It supports
How To Protect Hard and Symbolic Links in CentOS/RHEL 7
In Linux, hard and soft links are referenced to files, which are very important, if not protected very well, any
10 Strace Commands for Troubleshooting and Debugging Linux Processes
strace is a powerful command line tool for debugging and trouble shooting programs in Unix-like operating systems such as Linux.
How to Create Hard and Symbolic Links in Linux
In Unix-like operating systems such as Linux, “everything is a file” and a file is fundamentally a link to an
How to Recover or Rescue Corrupted Grub Boot Loader in CentOS 7
In this tutorial we’ll cover the process of rescuing a corrupted boot loader in CentOS 7 or Red Hat Enterprise
Install a Complete Mail Server with Postfix and Webmail in Debian 9
This tutorial will guide you on how to install and configure a complete mail server with Postfix in Debian 9
How to Install PHP 7 in CentOS 6
The CentOS 6 official software repositories has PHP 5.3 which has reached end of life and no longer actively maintained
How to Disconnect Inactive or Idle SSH Connections in Linux
In our previous article, where we’ve explained how to TMOUT shell variable to auto logout Linux shell when there isn’t
Initial Server Setup and Configurations on CentOS 7
This tutorial will explain the first basic steps you need to go through after installing a minimal CentOS 7 system
TMOUT – Auto Logout Linux Shell When There Isn’t Any Activity
How often do you leave a Linux system idle after login; a situation which can be referred to as an