[ccw]

Now today I receive 39 "Too many connections" errors, as below:

Database error in vBulletin :

mysql_connect() [<a href='function.mysql-connect'>function.mysql-connect</a>]: Too many connections /var/www/vhost/forums.datanumen.com/htdocs/includes/class_core.php on line 317

MySQL Error :
Error Number :
Request Date : Friday, November 14th 2014 @ 05:36:50 AM
Error Date : Friday, November 14th 2014 @ 05:36:50 AM
Script : http://forums.datanumen.com/private....=newpm&u=15515
Referrer :
IP Address : 157.55.39.30
Username :
Classname : vB_Database
MySQL Version :

and

Database error in vBulletin :

mysql_connect() [<a href='function.mysql-connect'>function.mysql-connect</a>]: Too many connections /var/www/vhost/forums.datanumen.com/htdocs/includes/class_core.php on line 317

MySQL Error :
Error Number :
Request Date : Friday, November 14th 2014 @ 05:42:33 AM
Error Date : Friday, November 14th 2014 @ 05:42:34 AM
Script : http://forums.datanumen.com/entry.ph...ods-Girlfriend
Referrer :
IP Address : 199.58.86.206
Username :
Classname : vB_Database
MySQL Version :

The error body will be different a little, but all said "Too many connections"

It seems that the attacker is try to using different way to attack my server. Is there a way to prevent this, other than just increase the max connection for My SQL?

Thanks