How can I set a limit as to how much space is available for a web site I put on my server? Like it is limited to 50 MB of space.
First, you have to enable quota on your system. Have a look at the quota section of the appropriate "Perfect Setup" tutorial for your distribution on HowtoForge.
After you've enabled quota on your system:
To set quotas for a user or group, use the setquota command (see
for more information), e.g.:
setquota -g $group $blocks $blocks 0 0 -a
setquota -u $username $blocks $blocks 0 0 -a
Replace $group, $username and $blocks. Note: $blocks is the quota size in MB * 1024! To deactivate quotas for a user or group, run these commands and set $blocks to 0.