Have you ever had the issue where all your cPanel accounts are showing as unlimited? Well lucky you, thats an easy fix. Just turn on quotas.
1) Log into server via ssh
2) Edit /etc/fstab
pico /etc/fstab
3) Look for a line that looks like the below;
LABEL=/1 / ext3 defaults 1 1
4) Once you find that line, after the word defaults add a comma and usrquota;
LABEL=/1 / ext3 defaults,usrquota 1 1
5) Save and exit
6) Remount;
mount -o remount /
7) Now run the cPanel script to fix quotas;
/scripts/fixquotas