Change mysql port in iredmail -> roundcube error

After installing iRedMail I want to change the MySQL port used. In order to do that I've changed these files:

/etc/my.cnf

/var/www/phpmyadmin/config.inc.php  --> I added the line:   $cfg['Servers'][$i]['port'] = '2222';

/var/www/roundcubemail/config/config.inc.php --> $config['db_dsnw'] = 'mysqli://roundcube:qqSRIW3nmc44UROk4Sesyuc9WY0eon@127.0.0.1:2222/roundcubemail';
Here I've added only the :2222 after 127.0.0.1.

/var/www/iredadmin/settings.py

/etc/httpd/conf.d/awstats.conf

/etc/httpd/conf.d/cluebringer.conf

But after the change of the port number in all of these files, I can't access to roundcube.

Anybody knows if I must change any other file related to roundcube?

Thanks in advance

==== Required information ====
- iRedMail version: 0.8.7
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Linux/BSD distribution name and version: CentOS 6.5
- Related log if you're reporting an issue:
====