Hello, My linux system: Debian 7.5 (not updated), my ISPConfig3 is 3.0.5.4p5. I'd like to do before a complete update of its system (with the latest security updates debian 7.5) I do not want to lose my sites, databases or emails. Can you tell me, step by step, what I have to do and how to do it? Big thank you to the community.
Just run: apt-get update apt-get upgrade you wont loose any data with normal linux system updates and you should install these updates regularily to keep your server secure.