Command Line Interface
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Essential UFW Commands and Their Usage
UFW (Uncomplicated Firewall) is a powerful tool designed to simplify the management of firewall rules on Linux systems. It provides a user-friendly interface for configuring iptables, making it accessible even to those with limited networking experience. This tutorial will cover UFW essentials—common firewall rules and commands with their usage and examples, helping you secure your […]
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Understanding Linux File Permissions
Understanding Linux file permissions are a fundamental aspect of system security and user management. Properly understanding and managing these permissions ensures that users have appropriate access to files and directories, preventing unauthorized access and potential security breaches. With right permissions, one can secure the files from any kind of unauthorized use by other non-privileged users. […]
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How To Change Debian Boot Screen and Plymouth Splash Screen Resolution?
Debian looks amazing once loaded, but we do see a few seconds of text based starting up boot screen that looks a little off resolution to actual display’s resolution. For example, my display resolution is 1920×1080 but when the system boots it switches back to some lower resolution until the boot screen and plymouth splash […]
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How to export and import an SQL file using the command line in MySQL?
People who use phpMyAdmin may find using command line difficult as using wrong syntax can lead to anything, while using command line is the most secure and reliable way where phpMyAdmin fails due to scripts limits. First, login to server using SSH like: ssh username@hostname (and use -p flag if using any port). Before we […]
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Why does htop show an exclamation mark next to uptime?
Htop is an excellent interactive system monitor process viewer and process manager. It is a modern and good-looking replacement to traditional and old-fashioned TOP found in every UNIX/LINUX systems. But I saw this (!) exclamation mark next to uptime and confused what it is at first… But when I read their code as well as […]
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Sudo: Command Not Found
Many newbies may panic in this error when they try to ssh into a server via command line or when they are trying CLI (Command Line Interface) for the very first time. Don’t panic, if you are here means your issue is solved. -bash: sudo: command not found Let’s see what is this and how […]