I would just check the IP address of your DNS server (the address it sources queries from) in the major geoIP databases.
From: Mike Hammett Sent: Monday, March 23, 2015 11:38 AM To: af@afmug.com Subject: Re: [AFMUG] testing DNS server performance Will the thread forget content caching? That's not what Steve is talking about. He wants to know if his newly setup DNS servers get returned Chicago NetFlix IPs and not Los Angeles NetFlix IPs. ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com -------------------------------------------------------------------------------- From: "Josh Luthman" <j...@imaginenetworksllc.com> To: af@afmug.com Sent: Monday, March 23, 2015 11:32:04 AM Subject: Re: [AFMUG] testing DNS server performance I think at the end of the day it comes down to what your caching server is using for DNS initially. At least I would have to assume, I don't know where else it would get any name resolution? Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Mon, Mar 23, 2015 at 12:25 PM, Mike Hammett <af...@ics-il.net> wrote: Run NetFlix. With Torch, capture it Netflix's IP. Traceroute to it. That's the best you're going to get. ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com ------------------------------------------------------------------------------ From: "That One Guy" <thatoneguyst...@gmail.com> To: af@afmug.com Sent: Monday, March 23, 2015 11:17:16 AM Subject: Re: [AFMUG] testing DNS server performance to make the question much simpler, what tool can I use to verify geographically and/or performancewise what CDNs are being utilized for various content On Mon, Mar 23, 2015 at 11:12 AM, Mike Hammett <af...@ics-il.net> wrote: I assumed he meant DNS cache. ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com ---------------------------------------------------------------------------- From: "Ken Hohhof" <af...@kwisp.com> To: af@afmug.com Sent: Monday, March 23, 2015 11:08:27 AM Subject: Re: [AFMUG] testing DNS server performance I don’t understand how the caching server is going to help with CDNs. Actually, with so much Internet content now being either dynamic HTML or streaming, I wouldn’t think caching would be worth it, unless you are talking about something like a Netflix OpenConnect appliance. Maybe you can cache software updates, I’m not sure about that. From: That One Guy Sent: Monday, March 23, 2015 10:35 AM To: af@afmug.com Subject: Re: [AFMUG] testing DNS server performance Geographically close CDNs. I want to make sure we are getting content from Illinoisish rather than california for netflix, since all that matters is netflix On Mon, Mar 23, 2015 at 10:30 AM, Josh Baird <joshba...@gmail.com> wrote: For performance, look at queryperf which I think is provided by ISC/bind. I'm not sure what you mean by "we are getting good CDNs and the like," though. Josh On Mon, Mar 23, 2015 at 11:27 AM, That One Guy <thatoneguyst...@gmail.com> wrote: Im bringing live our first caching server today. Is there a good tool for comparing queries between DNS servers. Im not all that concerned about speed since we are so small there wont be a huge amount of benefit I would think. Im primarily wanting to make sure we are getting good CDNs and the like -- If you only see yourself as part of the team but you don't see your team as part of yourself you have already failed as part of the team. -- If you only see yourself as part of the team but you don't see your team as part of yourself you have already failed as part of the team. -- If you only see yourself as part of the team but you don't see your team as part of yourself you have already failed as part of the team.
