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Changing domain of a Gitea instance

First written on March 1, 2021
Last updated on September 13, 2021

Here I am assuming that you are using Apache as webserver and Let’s Encrypt as certificate authority, as well as:

Now, follow these instructions:

  1. edit the following Apache virtual hosts variables by replacing old.domain with new.domain:

     ServerName
     RewriteCond
    

    but keep these:

     SSLCertificateKeyFile
     SSLCertificateFile
    
  2. systemctl restart apache2
  3. certbot --apache
  4. select the domain number when asked this question:

     Plugins selected: Authenticator apache, Installer apache
    
     Which names would you like to activate HTTPS for?
    
  5. redirect should already be in place, so select option 1: no redirect
    Please choose whether or not to redirect HTTP traffic to HTTPS, removing HTTP access.
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    1: No redirect - Make no further changes to the webserver configuration.
    2: Redirect - Make all requests redirect to secure HTTPS access. Choose this for
    new sites, or if you're confident your site works on HTTPS. You can undo this
    change by editing your web server's configuration.
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    Select the appropriate number [1-2] then [enter] (press 'c' to cancel):
    
  6. systemctl restart apache2
  7. Edit these variables in /etc/gitea/app.ini

     ROOT_URL     = https://new.domain/
     SSH_DOMAIN   = new.domain
    
  8. run cerbot certificates to check if everything is ok
  9. delete the old certificate: certbot delete --cert-name old.domain
  10. if you use a local DNS resolver like Unbound remember to update the domain records

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