Another era has come again, when our Debian 10 (Buster) server has also run out of time, and it has become a burning task to do something about this problem. In this tutorial, we will upgrade a perfect Debian 10 (Buster) server to Debian 11 (Bullseye). On this page, we review the necessary tasks before the update, which we use to prepare our system for the new main version.

The operating system running on our Debian-based web servers will become obsolete over time, so over time it will be necessary to completely upgrade the distribution. In this description, we will perform a complete upgrade of a Debian 9 (Stretch) web server to Debian 10 (Buster). There are many features on the server that will also be updated. On the first page of this description, we will perform the pre-upgrade steps to prepare your system for a secure upgrade.

PhpMyAdmin is an essential accessory for LAMP and other more complex servers, allowing us to conveniently manage our databases in a web interface. The phpMyAdmin web database management interface installation package was not previously available in the official Debian 10 (Buster) repository. So when I created the installer description for the Debian 10 LAMP server, I still had to install it manually. Since then, however, Debian has made the phpMyAdmin package available in the backports repository. In this description, in addition to the previous Debian 10 (Buster) LAMP server installation description, we will install our favorite web database manager from the backports repository, among other things, following the changes that have taken place in the meantime.

PHP is one of the most common server-side scripting languages ​​for building dynamic web pages, making it an essential part of our web server. The latest major version of this, PHP 2020, was released on November 26, 8. In this tutorial, we will look at how to install PHP 8 on an Ubuntu 20.04 (Focal Fossa) LAMP server and a Debian 10 (Stretch) perfect server, and how to you can configure it to work in both systems in the Apache environment.

It is not common to log in as root, so we do not use its password for a long time. We may forget and the sudo command is not available. If this happens, let's look at two ways to recover your forgotten root password on Debian and Ububtu.