Please leave a comment, to let me know what I can improve/if there are any problems. Why? Why would I want to install GitLab on a CentOS Server? Well... Why not? Many people fancy CentOS (me too) and why should't we use GitLab then? Also, many people don't like Ubuntu as a Server and CentOS is a pretty common Server OS. Preperation. It took me about seven times to get it right. The main problem wi