Academic Use and 8 Character Username Limit


Oct 10, 2017
Des Moines, WA
cPanel Access Level
DataCenter Provider
Hi All,

I am working on getting cpanel/WHM setup for use in classes here at our college. Wondering if there is anyone out there that has done this and could provide some guidance and lessons learned before I go to production. The way I have it set up now is I am setting instructors up with reseller accounts and letting them create users/domains for their class(es).

One thing in particular that I am seeing as being problematic is the username first 8 character uniqueness requirement. Is there any way to tweak that? I have read that it is tied to the way cPanel creates dB prefix names so wondering if that can be altered at all.

I currently have a single server, and am planning to have them create domains/user accounts that match the students' username which we allow them to set themselves and it often gets duplicated beyond 8 characters (for instance, they often use lastnamefirstname as a format and last names often duplicate beyond 8.

Any thoughts or suggestions are appreciated.



Staff member
Apr 11, 2011

In cPanel & WHM version 11.56 and newer, MySQL's unique character limit requirement does not exist on servers that use MariaDB. You can ensure MariaDB is installed by using the following option:

"WHM Home » Software » MySQL/MariaDB Upgrade"

This will allow you to use usernames that start with the same eight characters, regardless of if database prefixing is enabled under the "SQL" tab in "WHM >> Tweak Settings".

Thank you.