On 2014-02-13 11:34, Kevin wrote:
> Feb 11 21:49:20 zimbra sshd[27844]: reverse mapping checking getaddrinfo for 
> unnamed.skullspace.ca [206.220.196.50] failed - POSSIBLE BREAK-IN ATTEMPT!
>
> Shouldn't there be a DNS entry for our IP addresses PTR record?

That is the PTR record, literally 'unnamed.skullspace.ca'.
Servers owners that have static IPs and ask me to set them have custom PTR 
records.
Everything else is 'unnamed'.

--
Mak Kolybabi
<[email protected]>

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