I have even tried settings different port via
external_url
but also via
gitlab_rails['gitlab_port'] = XXX
config:
/etc/gitlab/gitlab.rb
/var/opt/gitlab/nginx/conf/gitlab-http.conf
And Run after:
sudo gitlab-ctl reconfigure
sudo gitlab-ctl restart
No luck.
but seems that gitlab has it's own nginx so there might be conflicts because of that.