I have a C program which does dns lookups of a large number of IP addresses by using calls to getnameinfo() in a loop. Its designed to be a very fast way to do lookups on cidr blocks. On all earlier versions of fedora (f8-f14) this works just fine. On F15 it does not always work - sometimes it returns nothing. Run it again - nothing - run it a 3rd time and it works fine - printing out the list of ip/hostname pairs. Sometimes it works fine first time. The /etc/resolv.conf has the localhost bind (127.0.0.1) as the first entry. It was recompiled on f15 ... since its intermittent its annoying to debug - has anyone else seen this kind of problem ? Thanks. gene -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines