The postfix mail server is an open-source MTA (mail transfer agent). Postfix routes e-mails to the desired mail server. It was originally released in 1998 and still active in 2019. It is also known as VMailer or IBM (more…)
During the installation of Ubuntu 18.04 and after choosing the partition, you get the following error message: grub-efi-amd64-signed package failed to install into / target/. (more…)
APT is one of the most frequently used commands in Ubuntu ( and Debian family hereafter ) . APT stands for Advanced Package Tool and is used as a package management (i.e. updating, adding or removing) (more…)
This document is intended to support Ubuntu server administrators and will aim to help you manage your network using the command line. (more…)
The content of webpages on the internet is mainly served up by a web server. The most widely used web server is the Apache (HTTP) which is an open source and therefore a free web server that was sponsored, (more…)
Many newbie seem confused when they want to install an application in Ubuntu and other similar linux distros (sld) for the first time. In this article we will try to clear up any confusion related to this so that you can (more…)
In order to know which architecture your Ubuntu or sld (linux similar distro) is built on, there are two simple ways : (more…)
CRON is a task scheduler (a daemon) which runs commands at predetermined times and intervals. You can choose the exact time at which the command will run by setting the minute, the hour, the day and the month. (more…)
After upgrading to Ubuntu 14.04 (or older) you might have experienced this annoying problem. In this article, you will learn how to fix this issue once and for all. Let’s get started ! (more…)
The Linux file system comes originally from UNIX and thus follows UNIX traditions. This is why for instance it uses the forward slash instead of the back slash as in Windows. Linux also differentiates between uppercase (more…)
