Here is the solution if you've got the following error message when updating package lists on Debian (apt-get update): The…

In Postfix configuration, particularly on Debian and Ubuntu systems, you might come across terms like "submission" and "submissions" when looking…

pSome internet access providers have port 25 disabled in their routers to prevent spam. If you run your own email…

The world of Linux is diverse, Linux distributions using different package management systems. RPM (Red Hat Package Manager) and Debian's…

The Nginx web server has a max. body size limit of 1 MB for requests as default. This might be…

Winmail.dat files are a unique file format utilized primarily by Microsoft Outlook. These files serve as containers for attachments sent…

The bash history is a log file that contains all commands that a user executed on the Linux BASH shell.…

If you run a firewall on your Linux server and want to use passive FTP connections, you have to define…

YARN package manager is a tool for managing yarn. The acronym stands for “Yet Another Resource Negotiator”, and that is…

Mono Framework is an open-source software framework that can be used to create all kinds of Server and Desktop applications,…