I have now imported my configuration files on my gateway into CVS. I've wanted to do that for a long time, and the thought of all the configurations I didn't have a backup of yet, and all the time I had used to make them, scared me, so when the server appeared dead it gave me the incentive I needed.
I also put my DNS zones in CVS now I were at it. With regular off-site backups I'm absolutely perfectly safe, and nothing whatsoever can ever go wrong. Right?