Restoring config files from debs is not straightforward. We won't now know what removed it, but, for example, if a mistake happened and for some reason "rm -f /etc/ipsec.conf" was run, special flags have to be given to dpkg to restore a missing config.
Since you restored it already, there is nothing else to do here, but for future reference, this could help: https://askubuntu.com/questions/66533 /how-can-i-restore-configuration-files -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1811610 Title: latest strongswan update is broken in 18.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/strongswan/+bug/1811610/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs