To change your moodle site's domain name, for example from "old.domain.com" to "new.domain.com" you have to do following things: 0. Point new.domain.com to your moodle site's IP address 1. Go to the replace admin tool in your moodle (still running at the old.domain.com) and replace http://old.domain.com with http://new.domain.com in every record that has the url: http://old.domain.com/admin/tool/replace/ ( version >= 2.5) 2. Open /moodle/root/path/config.php and change the wwwroot to the new domain: $CFG->wwwroot = 'http://new.domain.com '; 3. Change your nginx / apache configuration to retrieve server name as the new.domain.com (I use nginx ): ... server_name new.domain.com; ... 4. Restart nginx and php5-fpm: $ sudo service nginx restart $ sudo service php5-fpm restart 5. In addition, you can also clean the cache of your moodle: $ sudo rm -rf /moodle/data/path/cache/caches...