[phpGroupWare-users] how do I tell header.inc.php to use the right socket location?

[Rich Cook]

This is really a PHP question, but I hope it's appropriate for this list.  
I found a problem in my header.inc.php.  If I db_host to "localhost", I get the 
following error when I point my browser at phpgroupware/setup/index.php: 

Your Database is not working!
Make sure that your database is created and the account permissions are set.

And a separate test reveals I'm getting the following: 
Can't connect to local MySQL server through socket '/var/mysql/mysql.sock' (2)

However, if I use my network host name instead of localhost, then phpgroupware 
does not complain and I can continue.  But I really want to use a local socket 
for performance and security reasons.  How do I discover the correct socket 
location in mySQL and enable the correct socket location in PHP? 
Thanks for any helpSent from the phpGroupWare forums @ 
http://forums.phpGroupWare.org