I'm a Virtualmin Pro customer.
After running "aptitude update && aptitude dist-upgrade" I was presented a new version of the package virtualmin-base. Which I upgraded of course.
It then ran the whole virtualmin setup process again and while "Configuring firewall rules" it cut me off the server. I needed to restart the whole server to fix this!
Tell me that the package wasn't supposed to be installed, please. I'm running shorewall as a firewall here, do you think this collided somehow with the postinst script?