Yii. Rbac. No such file or directory (trying to connect via unix:///var/mysql/mysql.sock

To resolve the error in the title of this post:

1. Set the following in "/etc/php.ini"

pdo_mysql.default_socket=/tmp/mysql.sock
mysql.default_socket = /tmp/mysql.sock
mysqli.default_socket = /tmp/mysql.sock

2. Comment out the following line in "/protected/config/main.php" of your app:

'ipFilters'=>array('localhost','::1'),


3. Restart Apache:

sudo apachectl restart