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Old 07-24-2003, 07:28 AM   #1
Registered: Feb 2003
Location: Somewhere, UK
Distribution: Slack, OpenBSD, Debian, SuSE
Posts: 189

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openssh, reverse dns ?

hi, whats the directive for disabling reverse dns with the openssh sshd daemon ? I THOUGHT it was this ...

UseDNS - Specifies whether sshd should lookup the remote host name and check that the resolved host name for the remote IP address maps back to the very same IP address. The default is ``yes''.
that was taken from but when I try turning it off (because my bastion host is not allowed access to dns) I recieve the error ....

/etc/ssh/sshd_config: line 11: Bad configuration option: UseDNS
/etc/ssh/sshd_config: terminating, 1 bad configuration options
any ideas ?
Old 07-24-2003, 01:26 PM   #2
Registered: Feb 2003
Location: Somewhere, UK
Distribution: Slack, OpenBSD, Debian, SuSE
Posts: 189

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no-one ?
Old 07-24-2003, 01:54 PM   #3
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Registered: Sep 2002
Location: Nashville, TN
Posts: 1,552

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Which version are you using? Are you sure that it supports the UseDNS option? I just checked the man page for sshd_config on a system running 3.5.1p1 and that option is not available.


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