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 0Remount the partition
# mount -o remount /
# /sbin/quotaoff -a; /sbin/quotacheck -avugm; /sbin/quotaon -a;