Possablity to disable functions at a global point
It would be very nice to have a global point to disable some functions for the whole server like CHROOT-SSH or the PHP variants and so on.
CHROOT-SSH would be a very important thing because it have a bug at some distis (Debain, Ubuntu) wich allow the user access to the whole filesystem. The user would not be CHROOTed. The ssh deamon has to patched that CHROOT-SSH works correctly.