>> > Check out the following bug report. I would also look at other bind bug > reports. My sense is that redhat has deviated quite a bite from the ISC > version of bind. In particular I believe that they disabled or otherwise > modified the caching behavior back about 6-8 months ago when there were > major security issues with bind. I have felt that my Red Hat/Centos name > servers have not worked as well as Fedora or ISC bind name servers since > this time. You might try installing ISC bind and see if that solves your > problem. > https://bugzilla.redhat.com/show_bug.cgi?id=553334 > Nataraj Interesting - though in our case it's failing long before a few million lookups. I don't much relish compiling ISC versions to run on my box - the security implications and other hassles don't seem trivial. [We don't allow external [the world] lookups - just local "trusted" users, but that only mitigates some of the security concerns.] Perhaps it's possible to use an older version that's security patched. Ugh. -Greg