It sounds like you don't have the GD extension installed. I don't use Ubuntu any longer, but I think it may be named php5-gd,...
How To Install Webmin on Debian 10 Installing Webmin sudo nano /etc/apt/sources.list Then add this line to the bottom of the file to add the new repository: deb...
Brightness controls not working on Gigabyte display
Grub Customizer is a great application, it allows you to add or edit menu entry and change the default OS boot with GUI....
We have got this message below when trying to connect via SSH. WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!