http://dacxzjk3kq5mmepbdd3ai2ifynlzxsnpl2cnkfhridqfywihrfftapid.onion/help/administration/auth/ldap/index.md
For example:
OU=GitLab \28Inc\29,DC=gitlab,DC=com
Enable LDAP username lowercase
Some LDAP servers, depending on their configuration, can return uppercase usernames.
This can lead to several confusing issues such as creating links or namespaces with uppercase names.
GitLab can automatically lowercase usernames provided by the LDAP server by enabling
the configuration option lowercase_usernames .