You have an existing GitLab set up on a Linux server. You have access to the back-end. You want to find the port number to connect to. How do you do this?
First find the external IP address (e.g.,
Second, install nmap (e.g.,
sudo yum -y install nmap or
sudo apt-get -y install nmap).
Three run this command (but replace x.x.x.x with the IP address found in the first step above):
nmap -Pn x.x.x.x | grep open