Upgrading ubuntu server and components
I have configured ISPConfig 3 to lastest version last month or two and I have a lot of updates in monitor tab and in the future there will be more and more updates. So if I run apt-get update and after that upgrade and there is for example upgrade for postfix, clamAV, mysql, ... can it break my server with ISPConfig? If so, can I run re-sync of updated components via ISPConfig and it take correct actual configuration for my server?
Understand me that only what I want is to upgrade everything and keep it working.
Guys how you handle upgrades and keep stable system with components of ISPConfig?
Thank you for clarification.