Hi Vincent, I think you said you are not root on the machine in question so perhaps this is not an option, but have you tried an alternative nscd implementation such as unscd to see if it fares better with this misbehaving DNS resolver?
(For onlookers, I am not suggesting that the misbehaving DNS resolver shouldn't be fixed, as that's going to be causing lots of other issues.) Thanks, Andy -- https://bitfolk.com/ -- No-nonsense VPS hosting
