Did your settings for sshd change recently or did you upgrade the 
ssh-server (or similar) package recently?  DenyHosts grabs the data by 
parsing the secure/messages log file so if those files suddenly contain 
hosts instead of ip addresses then that would explain it.

Phil



On Sun, 29 Aug 2010, Daniel Norton wrote:

> On Friday I started seeing host names instead of IP addresses added to *
> hosts.deny* and they're also in the denyhosts files, presumably from one or
> more sync servers.
>
> This will break denyhosts in several ways, allowing the possibility of
> someone bypassing the protection provided by denyhosts (and possibly
> preventing access from previously permitted IP addresses). It also breaks
> third-party scripts that expect IP addresses.
>
> Has anyone else seen this? e.g. from my *hosts-restricted* file:
>
> ns1.gopalmer.co.uk:0:Fri Aug 27 11:07:17 2010
>
>> From *hosts.deny*:
> # DenyHosts: Fri Aug 27 11:07:17 2010 | ALL: ns1.gopalmer.co.uk
> ALL: ns1.gopalmer.co.uk
>
> --
> Daniel
>


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