The following bug in Gitlab has not been fixed for some time. Using an underscore in the name of the LDAP server causes the LDAP login screen to fail.
Since there is little activity in fixing the bug (I'm on gitlab-ce-14.10.0-ce.0.el8.x86_64) perhaps it would be worthwhile to update the documentation to reflect this naming problem. The template gitlab.rb.erb has a simple loop over the gitlab_rails has that can't reformat any underscores.
The following bug in Gitlab has not been fixed for some time. Using an underscore in the name of the LDAP server causes the LDAP login screen to fail.
Since there is little activity in fixing the bug (I'm on gitlab-ce-14.10.0-ce.0.el8.x86_64) perhaps it would be worthwhile to update the documentation to reflect this naming problem. The template gitlab.rb.erb has a simple loop over the gitlab_rails has that can't reformat any underscores.