Scott Duckworth wrote: > I am passing along this information in case anybody else runs into this > problem. > > We found the cause of the problem with our DNS servers. [...] It sounds like the behavior described by the "glibc (2.9-8)" entry of libc's NEWS.Debian.gz. Thanks for a clear explanation. If you have ideas in the future for how libc's resolver behavior can be improved, I'll be glad to hear them.