* Peter Eisentraut (peter_e@gmx.net) wrote:
> On mån, 2010-08-09 at 13:56 -0500, Kevin Grittner wrote:
> > Some IP addresses have several host names, including in reverse
> > lookup; how is that handled?
>
> This is not possible, or at least the C library APIs don't expose it.
> Compare the getnameinfo() and getaddrinfo() man pages, for example.
Don't know how it happens at a technical level, but I've definitely seen
it happen before.. Particularly with Windows domains where they don't
have "clean-up reverse DNS" enabled. Manifests itself by having
different host names show up on successive requests... Evil in any
case.
Stephen