On 6/29/2013 7:15 AM, Wietse Venema wrote: > T?ssio Fechine: >> What!? How the user running the client library affects DNS response? This >> makes no sense. > > This is a frequent problem with novice system administrators > who mess up file or directory access permissions. > > If a program doesn't run as root, then the tests should not > be done as root.
And if I'm not mistaken, this kind of thing can also happen with a broken or poorly implemented chroot, wherein the resolver Postfix uses can be different than the resolver everything outside the Postfix chroot is using. I vaguely recall this happening to me many many years ago with Debian, when I modified /etc/resolv.conf and the change was not picked up in /var/spool/postfix/etc/resolv.conf. The two resolvers were returning different results so testing in a root shell with host and dig was counterproductive and masked the problem. Wietse helped me identify the chroot as the problem and I was able to track down how to fix it after I knew where to look. He is trying to do the same for you here. He is simply not spoon feeding you the complete answer, complete picture. He's pointing you in the right direction so you can do the rest of the sleuthing yourself. Some folks here will hold your hand start to finish at times. But for the most part I think most folks here try to be enablers, not function as consultants. This is all volunteer after all. -- Stan
