Edit on September 28, 2017. The error description you'll read below makes the problem appear to be GitLab or OS specific. The behavior described can be encountered on any computer behind a proxy while attempting to connect to any internally hosted Git server, whether GitHub, GitLab, Bitbucket, etc... .
I have a RHEL6 server (setup by the corporate server team) that I installed GitLab Community Edition 7.9.2 on following the instructions provided by GitLab here. After following the installation instructions I was able to start the server and login.
I created a group and a project, then I forked into my own account. I can create a file through the GitLab UI and commit it. I'm trying to fetch from my forked project using Git Bash (on Windows 7) and with SourceTree but I'm getting this error:
git -c diff.mnemonicprefix=false -c core.quotepath=false fetch origin fatal: unable to access 'http://server.domain.com/username/project.git/': The requested URL returned error: 503
Most documentation I've found says this is a temporary thing and should be resolved soon. I am the only person using this server, this is the only thing it has installed, and the issue has lasted all day.
I've tried running reconfigure commands on GitLab with no effect. Gitlab or ngenix isn't an installed service so I'm not able to restart them.
Another tidbit here is that I'm a newbie at Linux server management, I haven't touched Linux in 7 years.
Any ideas?
-error.logfiles?