In Python, a variable is a named location in memory where you can store and access data. Variables are used…

If you’re managing a Linux server, you may be wondering how to configure Postfix to send emails from external SMTP…

Postfix SASL Authentication is one of the most popular methods for remote SMTP authentication. It’s a secure, reliable, and highly…

Do you want to send out emails from different senders to different places? You can do this now! Just set…

The ‘find’ command with -maxdepth is a powerful tool in the Linux operating system. It is used to recursively search…

Docker is an open-source platform that enables developers to create, deploy, and manage applications in a lightweight, secure, and efficient…

DKIM or DomainKeys Identified Mail is an authentication protocol used to validate the identity of a sender. It’s an important…

Docker is a platform used to develop, ship, and run applications inside containers. One of the common tasks when working…

Docker has become a popular tool for containerization, simplifying the deployment and management of applications across various environments. However, as…

HDFS is the Hadoop Distributed File System. It’s a distributed storage system for large data sets which supports fault tolerance,…