On Thu, 12 Nov 2009 10:01:38 +0900, Stephane Bortzmeyer <bortzme...@nic.fr> wrote: > On Wed, Nov 11, 2009 at 05:00:03PM -0600, > da...@from525.com <da...@from525.com> wrote > a message of 60 lines which said: > >> I am wondering if anyone knows of an app similar to nslookup or >> dig that actually uses the system resolver. > > C source attached. Compile, for instance, with: > > gcc -o resolve-name resolve-name.c > >> I am basically trying to uinderstand why the system resolver was >> getting stuck on the third entry within the resolv.conf while it >> should have tried one of the first two working DNS servers first. > > Not sure it will help.
Stephane, Thanks for that bit of c it works great and does just what I was hoping for. I was able to reproduce the almost 13 second delay while looking up a specific hostname. Funny thing is, when I perform other queries for other hostnames the third invalid DNS server mentioned in the resolv.conf does not seem to be a problem. When I remove the third invalid entry and perform the same query with your application the delay is non existent. I have captured previous tcpdumps and didn't notice anything out of the norm, but there was alot of other network chatter. The app should let me capture a more concise tcpdump for further examination. Is there any way you could incorporate resolver errors being sent to stdout? Thanks, David Porsche _______________________________________________ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
