[Serusers] hi all, newbie problem probably

I installed ser on a linux box centos 3.4 I use mysql 4.10 Furthermore I am noob on Linux and Ser :( I get this messages at boot in the messages file Impossible the for an UA to connect to ser... Help is welcome, regards, Olivier Mar 3 17:12:19 linux ser: WARNING: could not rev. resolve 82.146.123.252 Mar 3 17:12:19 linux ser: Listening on Mar 3 17:12:19 linux ser: 127.0.0.1 [127.0.0.1]:5060 Mar 3 17:12:19 linux ser: 82.146.123.252 [82.146.123.252]:5060 Mar 3 17:12:19 linux ser: Aliases: localhost:5060 localhost.localdomain:5060 82.146.123.252:* linux.finalcut.be:* finalcut.be:* Mar 3 17:12:19 linux ser: Listening on Mar 3 17:12:19 linux ser: 127.0.0.1 [127.0.0.1]:5060 Mar 3 17:12:19 linux ser: 82.146.123.252 [82.146.123.252]:5060 Mar 3 17:12:19 linux ser: Aliases: localhost:5060 localhost.localdomain:5060 82.146.123.252:* linux.finalcut.be:* finalcut.be:* Mar 3 17:12:19 linux ser: Listening on Mar 3 17:12:19 linux ser: 127.0.0.1 [127.0.0.1]:5060 Mar 3 17:12:19 linux ser: 82.146.123.252 [82.146.123.252]:5060 Mar 3 17:12:19 linux ser: Aliases: localhost:5060 localhost.localdomain:5060 82.146.123.252:* linux.finalcut.be:* finalcut.be:* Mar 3 17:12:19 linux ser: ser startup succeeded Mar 3 17:12:19 linux /usr/sbin/ser[2649]: connect_db(): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2) Mar 3 17:12:19 linux /usr/sbin/ser[2649]: db_init(): Error while trying to connect database Mar 3 17:12:19 linux /usr/sbin/ser[2649]: mod_init(): Error while connecting database Mar 3 17:12:19 linux /usr/sbin/ser[2649]: init_mod(): Error while initializing module usrloc