Rights problem at installatioin, delete cache, and some strange things over night

[dirk_s]

Update from 4.4.10 to 5.0.4 Tipps - Manual is incomplete

@stefan-franz actually preparing a system to be a safe and well running web server is nothing that can be achieved by a simple tutorial, let alone to maintain it and keeping it safe. If you don’t have the experience and knowledge, I recommend using Plesk or similar management console. There the groups and users and security features are on a better level for public web hosting. Although I have years of experience with Linux ans web servers I wouldn’t dare to maintain it myself - unless I was a…