When you often need to run other commands as root using sudo, you may need to type the password every time. Although the session "remembers" the previously entered password for a while, we don't have to retype it for a while, but we need to re-identify ourselves after a while. Also, if you work with multiple users, you will need our passwords more often. And if you also want to use commands running with root privileges in Shell scripts, you definitely need to avoid typing passwords so that our programs can run automatically. In this short description, we will look at how to persistently avoid asking for a password when using sudo.

Sometimes, for some reason, we get a new IP address, so we also need to modify the appropriate configuration files and make settings on our web server to keep the services running on the server running. Whether it is a home test environment, a live web server, or moving the server to another (network) environment, we need to make these settings in each case. In this description, we will go through the settings inside or outside the server that we need to change in order for the services on the machine to work with the new IP address.

There is often a need to control a remote computer from another machine or even our cell phone. I installed Google Remote Desktop to control my Debian 10 from the other desktop, but I found that the remote Debian came in with a blank desktop on the remote control interface. This is because Google Remote Desktop on Linux machines basically starts a new session instead of using an existing desktop. In this description, after installing and starting the program, we make a setting that allows the remote control part to be connected to the same session on Linux host machines, which allows us to use the remote control system in the usual way.

By making the web and other services running on our server available to the public, there may be a need for a comprehensive monitoring system that allows us to track information about the utilization of various resources on our server from one place. Many of these softwares are available today, and in this tutorial we will look at the installation and commissioning of a server monitor package called Munin on Debian 9 (Stretch) and Debian 10 (Buster).

If you run multiple websites on your server, you may need to run a different version of PHP for each website. When using ISPConfig, this is a very simple task, as the control panel can run multiple versions of PHP at the same time. In this tutorial, we will review how to configure PHP instances installed on a server in FastCGI and PHP-FPM modes.