Be warned that an ISPconfig upgrade overwrites the init.d scripts.
I've upgraded 2.2.40 to 2.2.40 (no typo here) and found that
Code:
/etc/init.d/bastille-firewall
/etc/init.d/ispconfig_server
were overwritten, hence I lost the LSB info.
A backup was created of bastille-firewall, but not of the ispconfig_server script.