title: After Updating to MySQL 5.6.9, localhost does not work anymore
body: <p>I have installed Apache2 2.2.22, MySQL 5.5, and PHP 5.3 on my server. I am using codeigniter to do our project. Everything is working fine until I upgraded MySQL to 5.6, the developer release version. It shows ERROR2002(HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) and can no longer connect to my localhost. So, I downgraded back to 5.5 but still cannot connect to my localhost. It is showing HTTP ERROR 500 when I go to localhost.</p>
  
  <p>I would remove and reinstall everything but would like to get a suggestion first. 
  Thanks.</p>