said by mdmaddox:That DNS is the last hope anyone will see if they trace your current IP address back to you. So in my case if the DNS show up in PA and I'm in WA then something is wrong.
If you can trust someone to run a trace to your IP or try it from your work you can quickly tell if the notice is legit or not.
said by jbob:I think he means the HOST DNS, final hop or Host name, not a DNS server. Even the info provided in the email/letter shows Infringers DNS Address: C-71... blah blah blah
The text string that is used for the pseudo hostname assigned to an end user's dynamic IP address is totally meaningless. It can be whatever the network tech who keys it in wants it to be (in fact there is no requirement for a hostname at all). In the case of a national ISP like Comcast, even the semi-traditional city-state part of that text string is only accurate if someone bothers to change it when the associated IP address block is moved from San Francisco to Chicago to Boston as frequently happens. The only thing that matters in the case of a copyright infringement notification is if the ISP's database says that the IP address in question was assigned to a specific user on the date/time in question (and good luck proving that it was not assigned to you if the ISP says it was). Maybe that would be a good reason to use the DSLR 24/7 line monitoring service, but that could be a two edge sword if it proved the the IP address in question actually was in use by you during the time in question.