Let’s talk about how to change the IP address of GitLab server

GitLab is an open source warehouse management system that provides source code version control, code snippet management, issue tracking, CI/CD construction and other functions. It can be managed and used via a web interface or command line tool. When using GitLab, we sometimes need to change the IP address of the GitLab server. In this article, we will discuss how to change the IP address of your GitLab server.

1. Determine the server IP address

Before changing the IP address of the GitLab server, you must first determine the new IP address. We can use commands such as ifconfig or ip addr to check the IP address of the current server. For example, we can use the following command to check the IP address of the current server:

ifconfig

The output is as follows:

eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.101  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::a00:27ff:fede:c03  prefixlen 64  scopeid 0x20<link>
        ether 08:00:27:de:0c:03  txqueuelen 1000  (Ethernet)
        RX packets 338  bytes 35743 (34.9 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 224  bytes 21212 (20.7 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

As you can see from the output, the IP address of the current server is 192.168.1.101 . In this article, we will change the server’s IP address to 192.168.1.102.

2. Modify GitLab configuration file

Next, we need to modify GitLab’s configuration file so that GitLab can use the new IP address. GitLab's configuration file is usually located in /etc/gitlab/gitlab.rb. We can use the following command to open the configuration file:

sudo nano /etc/gitlab/gitlab.rb

In the configuration file, we need to find the external_url parameter and change its value to the new IP address. For example, we can change it to:

external_url 'http://192.168.1.102'

Save and close the file. Next, we need to reconfigure GitLab for the changes to take effect. We can reconfigure GitLab using the following command:

sudo gitlab-ctl reconfigure

This will restart GitLab and apply the new configuration. With the reconfiguration, GitLab will use the new IP address.

3. Modify DNS records

If you are using a domain name to access GitLab, you also need to modify the DNS records to point to the new IP address. You can do this in the domain name control panel or the DNS management panel. Taking Godaddy as an example, you need to go into the control panel, find DNS management, then find the record of the GitLab domain name and change it to the new IP address. After modification, it will take some time for the DNS records to take effect. You can use the ping command to test whether the new IP address takes effect.

ping gitlab.example.com

If the ping command returns a new IP address, it means that the new IP address has taken effect.

Summary

To change the IP address of the GitLab server, you can use ifconfig or ip addr and other commands to view the IP address of the current server, and use the nano /etc/gitlab/gitlab.rb command to modify the configuration file external_url parameter in . Then, reconfigure GitLab by running the sudo gitlab-ctl reconfigure command. If you use a domain name to access GitLab, you will also need to modify the DNS records to point to the new IP address.

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