According to the upstream bug report this is fixed. If possible can you test this in a newer release?
** Changed in: tomcat6 (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to tomcat6 in Ubuntu. https://bugs.launchpad.net/bugs/669739 Title: unable to setup ip-based virtual hosting due to "Bugzilla 48612" -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs