Using hostnames instead of IP addresses causes server to disappear
Commit 24e0784d14f2f7c24e7a44701162e1f988f11672 causes my server to disappear after a few days of running normally. It's never visible on http://dpmaster.deathmask.net/?game=xonotic but people can still see it in server list. After some time it disappears completely. Confirmed by several people.