At the time of writing this in December 2023, the list() function in PHP is not deprecated. This function is…

In this short guide, I will show you how to write a PHP function that takes an associative array of…

Django is a free and open source Python web framework used for developing dynamic websites and applications. It is used…

You are using a Postfix mail server, and your system started sending masses of spam emails? The following guide will…

This guide will show you step-by-step how to requeue emails in Postfix on Linux. I've been using these steps on…

Using the tcpserver program on Linux is not deprecated. Tcpserver is a utility included in the ucspi-tcp package that listens…

Using xinetd (Extended Internet Service Daemon) on Linux is not deprecated, but its usage and relevance have evolved over time.…

In this example, I will use the getent command to check if a Linux group exists. if getent group "$groupname"…

Here I will show you how to check if a Linux user exists (or does not exist) in a POSIX-compatible…

To restart a Docker container, you can use the docker restart command. This command stops and then starts the specified…