Iptables tutorial: securing VPS with Linux firewall
Are you looking for a comprehensive iptables tutorial for your VPS? This article will show you how to install and use iptables on an Ubuntu system....
17 Essential SSH Commands to Know + Free Cheat Sheet
Secure Shell (SSH) is a powerful tool used to access and manage remote servers securely. Whether you’re a beginner or an experienced user,...
How to change permissions and ownership in Linux
Properly managing Linux file permissions and ownership is essential for safety, especially when multiple administrators manage one server. Moreover,...
How to Use PuTTY to Access Your Server
SSH, or Secure Shell, is a secure protocol for connecting to a remote server. To establish an SSH connection, you will need an SSH client app like...
How to list users in Linux: Commands, tools, and automation tips
To list users in Linux, the most common method is to read the /etc/passwd file, which stores essential information about every account on the...
How to Use Linux List Services to Effectively Manage Running Services in 2026
An operating system requires programs that run in the background called services. In a Linux system, these services are called daemons. They are...
How to edit the sudoers file to obtain and manage root privileges
The sudoers file is a critical configuration file in Linux and Unix-like operating systems that controls user privileges. It defines who can execute...
How to Use the Linux tee Command With Useful Examples
Navigating Linux commands can be intimidating, but the more you learn, the easier it gets. The Linux tee command is a versatile tool that streamlines...
How to Set and List Linux Environment Variables
Linux environment variables are key-value pairs defining your system’s shell session and program behavior. They let system administrators easily...