Unable to change external url in Gitlab

If we need to change our external url in gitlab we have change it in /etc/gitlab/gitlan.rb, and you have to change the external url like below mentioned.

• cd /etc/gitlab/
• vim gitlab.rb

in this we have to change the required url like below.

external_url 'https://gitlab.testdomain.com'

Then we have to change yml file location /opt/gitlab/embedded/service/gitlab-rails/config/gitlab.yml

• cd /opt/gitlab/embedded/service/gitlab-rails/config/
• vim gitlab.yml

change the hostname of the external url like below

 ## GitLab settings

  gitlab:

    ## Web server settings (note: host is the FQDN, do not include http://)

    host: gitlab.testdomain.com

    port: 443

    https: true

Finally reconfigure the gitlab with below command and restart for the host name.

• gitlab-ctl reconfigure
• gitlab-ctl restart