Can't connect to local MySQL server through socket '/tmp/mysql.sock' (111) site:http:

[pooyan]

I installed lsws on DA
when i run
service httpd stop
service lsws start
Also i compiled PHP via console

and test a website display this error:
Can't connect to local MySQL server through socket '/tmp/mysql.sock' (111)


I searched on this forum and find related post and run this command but problem not fixed,

# ln /var/lib/mysql/mysql.sock /tmp
ln: creating hard link `/tmp/mysql.sock' to `/var/lib/mysql/mysql.sock': File exists



Please help me
regards