how do I disable reverse DNS

[Mathias Körber]

To add:

a) it might be a tcp-wrapper (tcpd) etc that does the reverse lookup

b) if the application is developed in-house, your programmers might be =
able
to help, ie make your application noit insist on reverse DNS resolving, =
if that
is in fact a problem.

In itself, reverse DNS is a rarely a problem and mostly a boon. So it =
might be
better ensuring that your application can use the reverse information =
(for access control etc)
and maybe log missing reverse resolution but continue?


> -----Original Message-----
> From: news at concentric.net [mailto:news at concentric.net]On Behalf Of =
Eric
> A. Hall
> Sent: Monday, August 28, 2000 1:13 AM
> To: comp-protocols-dns-bind at uunet.uu.net
> Subject: Re: how do I disable reverse DNS
>=20
>=20
>=20
>=20
> > I recently discovered that by default the Solaris O/S does a reverse
> > DNS look-up in order to identify incoming sessions
>=20
> This is a slight mis-statement. The Solaris TCP/IP stack doesn't issue
> reverse lookups against incoming connections, but instead each =
individual
> application does it, or the applications call a logger/firewall daemon
> that does it. Find and disable that service. You should ask in the =
Solaris
> NG for info on this.
>=20
> --=20
> Eric A. Hall                                        =
http://www.ehsco.com/
> Internet Core Protocols          =
http://www.oreilly.com/catalog/coreprot/
>=20