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Date: Mon, 8 Nov 2004 15:16:38 +0000
From: Daniel Bye <freebsd-questions@slightlystrange.org>
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Subject: Re: SSHD Broken After Update
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On Mon, Nov 08, 2004 at 06:26:32PM +1100, Steven Adams wrote:
> Hi,
>=20
> I updated my server to 5.3 from 5.2.1 yesterday.
>=20
> I did encounter a few problem but managed to get by them by editing a few
> make files etc..
>=20
> All is working except sshd.
>=20
> When I login it get this error in my logs
>=20
> reverse mapping checking getaddrinfo for IP failed - possible breakin

>=20
> Does anyone know what this means? Ive looked everywhere on google.com
> without any luck :(

sshd is performing a reverse DNS query on your (client) hostname.  It is
getting back a different name from the DNS than the client presented.
If you don't have control of the reverse DNS mapping for your host,
you can disable this behaviour by setting `UseDNS no' in=20
/etc/sshd/sshd_config and restarting sshd.

The message is defined in /usr/src/crypto/openssh/canohost.c=20

HTH

Dan

--=20
Daniel Bye

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