Bitmask entries in resolv.conf do not get cleaned if the client crashes
If bitmask isn't closed properly the dns servers in @/etc/resolv.conf@ are replaced with the bitmask ones. I needed to restore manually my preferences and run:
sudo resolvconf -d bitmask
to avoid the dns being replaced again later.
(from redmine: created on 2014-05-20, closed on 2014-06-10, relates #5588 (closed), relates #5692 (closed), relates #5738 (closed))