Penetration Testing: Re: finding dyndns names for existing IP

[Jeff Bryner <jbryner1 () yahoo com>]

<Why not interrogate the applications which are using DynDNS.  That is,
if it's a webserver, find the FQDN via the web port>

A quick check would be to https:// to the ip address you know. Your
browser should spit back a warning noting that the ssl cert (assuming
they have one) isn't valid for the name you're using, view cert and
bingo you've got the domain name.

Jeff.

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