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Tecmint: Linux Howtos, Tutorials & Guides
  • Latest Tutorials
  • Commands
    • A – Z Linux Commands
    • 100+ Linux Commands
  • Tools
  • Distros
    • Linux Distros for Beginners
    • Linux Distros for Experts
    • New Linux Distros
    • Linux Server Distros
    • Secure Linux Distros
    • CentOS Alternatives
    • RedHat Distributions
    • Debian Distributions
    • Ubuntu Distributions
    • Arch Linux Distros
    • Rolling Linux Distros
    • KDE Linux Distros
    • Linux Distros for Old PC
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    • Linux Distributions for Students
    • Linux Distros for Windows
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    • Learn Linux
    • AI for Linux
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  • About
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Fix “firewall-cmd: command not found” Error

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

Protect Hard and Symbolic Links in CentOS

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

Strace Linux Troubleshooting and

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.

Create Hard and Symbolic Links in 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

Recover Grub in CentOS 7

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 Postfix and Webmail in Debian

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

Install PHP 7 in CentOS 6

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The CentOS 6 official software repositories has PHP 5.3 which has reached end of life and no longer actively maintained

Auto Disconnect Idle SSH Sessions

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 on CentOS 7

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

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

Linux Wildcards Command Examples

10 Practical Examples Using Wildcards to Match Filenames in Linux

Wildcards (also referred to as meta characters) are symbols or special characters that represent other characters. You can use them

Install Zentyal Server

Installation of Zentyal 5.0 Server

This tutorial will guide you on to install the latest version of Zentyal on a bare-metal server or on a

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