After trying to set the firewall in ispconfig 3 my system hangs. The system hangs because no dns can be reached. After stopping /etc/init.d/bastille-firewall stop the system works normal. But the job queue has stopped. It hangs at Insert firewall... The /var/log/ispconfig/ispconfig.log shows No further jobs are done through the admin panel becuase the latest job Insert Firewall has a fault. I really don't know how to resolve the problem.
Login to phpmyadmin as root, go to the dbispconfig database and there to the table "server". In this table there is a record for your server which has a column 'updated'. Increase the value of the updated field by 1 (updated = updated + 1) to skip the failed job.
On a multiserver setup, increase the value only in the record of the server that is affected by this issue. The record has to be cahnged in the database of the master server only.