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Re: [cobalt-users] Meaning of: www sshd[11208]: warning: /etc/hosts.deny, line 103: can't verify hostname
- Subject: Re: [cobalt-users] Meaning of: www sshd[11208]: warning: /etc/hosts.deny, line 103: can't verify hostname
- From: Larry Smith <lesmith@xxxxxxxxx>
- Date: Wed Feb 5 16:03:01 2003
- Organization: ECSIS.NET
- List-id: Mailing list for users to share thoughts on Sun Cobalt products. <cobalt-users.list.cobalt.com>
INRE [cobalt-users] Meaning of: www sshd[11208]: warning: /etc/hosts.deny,
line 103: can't verify hostname:
> Just got the following in my log check file, can anyone explain what's
> happening:
>
> Security Violations
> =-=-=-=-=-=-=-=-=-=
>
> Feb 5 13:54:50 www sshd[11208]: warning: /etc/hosts.deny, line 103:
> can't verify hostname: gethostbyname(64-58-161-121.cbi.cox-oc.net)
> failed
> Feb 5 13:54:51 www sshd[11208]: Did not receive identification string
> from 64.58.161.121
> Feb 5 13:54:55 www sshd[11210]: warning: /etc/hosts.deny, line 103:
> can't verify hostname: gethostbyname(64-58-161-121.cbi.cox-oc.net)
> failed
> Feb 5 13:54:55 www sshd[11210]: Did not receive identification string
> from 64.58.161.121
>
Charles,
It means that reverse DNS is not working on that IP/hostname:
<TEST>
root: host 64.58.161.121
121.161.58.64.IN-ADDR.ARPA domain name pointer 64-58-161-121.cbi.cox-oc.net
root: host 64-58-161-121.cbi.cox-oc.net
Host not found.
</TEST>
EG: the IP maps to the name, but the name does not map back to the IP.
--
Larry Smith
SysAd ECSIS.NET
sysad@xxxxxxxxx