<!--IssueSummary start--> <details> <summary> Everyone can contribute. [Help move this issue forward](https://handbook.gitlab.com/handbook/marketing/developer-relations/contributor-success/community-contributors-workflows/#contributor-links) while earning points, leveling up and collecting rewards. </summary> - [Close this issue](https://contributors.gitlab.com/manage-issue?action=close&projectId=278964&issueIid=25792) </details> <!--IssueSummary end--> Zendesk: https://gitlab.zendesk.com/agent/tickets/109778 A customer configured a pull mirror with a repository URL in the format `ssh://user@git.example.com:1234/foo/bar.git`. This is a common URL format when a user needs to specify a non-standard SSH port. In this case GitLab returns an error when attempting to pull from the mirror: `fatal: ssh variant 'simple' does not support setting port` This is strange because the default in Git doesn't seem to be `simple`. On my own Git client I can specify this URL format without such an error. In GitLab, the customer was able to specify the `ssh` variant using the following configuration in `gitlab.rb`: ``` omnibus_gitconfig['system'] = { 'ssh' => ['variant = ssh'] } ``` - Why is this necessary when GitLab acts as the client? - If this is expected behavior we should add troubleshooting documentation about this.