@santa4nt: You're correct, the cache is retained only from within the same handler: the other solution would be to keep the cache at the server level, but then you'd have to deal with the cache size (you don't want it to grow forever), and it seems a bit overkill. I just kept the FQDN resolution because the code seemed to do it on purpose, but I agree that if nothing relies on this behaviour, it might be as simple to remove the resolution altogether.