Hi, I suppose some of you having more than couple of self-hosted websites already had this experience - you have a customer that has a sh***y website and it allocates lots of CPU resources while they are paying the same as everybody else. What I would like to do: I would like to be able to limit users to certain CPU (for starts) consumption on per user basis as ISPConfig has the structure 1 user = 1 website (ie. example.com is run as web1 while example1.com is run as web2 user) it should be pretty easy to do but how to do it? I suppose the very basic version of this would be - no user can allocate more than 0.5 CPU at any given time. More advanced version would be: if this particular user us allocating 0.5 CPU for longer than 4 hours send me an email so I can deal with the user. Any thoughts how to do this on Debian/Ubuntu?