Configuring Quotas on Directadmin ext4 file system

So you created your VPS and  installed directadmin ok. You can read the full documentation here based on file system type. For ext4

Start by editing

# mount | grep ' / '
# /dev/sda2 on / type ext4 (rw,noatime,quota,usrquota,grpquota)

This shows ext4 as file system type and confirms our mount point is “/”

add usrquota,grpquota to "/"
# nano /etc/fstab
UUID=87dc142a-1e3a-4232-b5cb-e46a7ef50873 /                       ext4    defaults,noatime        1 0
UUID=75f14d25-640a-4131-999d-e7196fc53d11 /boot                   ext4    defaults,noatime        1 0

Remount the partition

# mount -o remount /
# /sbin/quotaoff -a; /sbin/quotacheck -avugm; /sbin/quotaon -a;