I have Gitlab self hosted installed on a Debian 8 Machine along with the Nexus Repository Manager, the problem is I am not able to access the nexus domain (nexus.external.sapphirehosting.eu) because it always redirects me to the gitlab domain(repo.external.sapphirehosting.eu) I have changed gitlab to use apache2 as I like it more and know it a bit.
Also, I use Cloudflare as proxy and if I put the 3 domains (nexus.external, repo.external and external) to proxied instead of DNS only I get the error ERR_SSL_VERSION_OR_CIPHER_MISMATCH