On Fri, Jan 23, 2009 at 9:18 AM, Steve Totaro <stot...@asteriskhelpdesk.com> wrote: > > Fine using AT&T's (at least I think they belong to AT&T) DNS servers > (Also do NTP). I will make this thread useful to someone. > > Listed below because they are easy to remember and have never failed > me even when a customer's ISP's DNS is down, I get the call "Our > Internet is Down" but they can ping my servers by IP. Also, can > "speed up" complaints of a slow network (if DNS lookups are the reason > for the slowness. > > 4.2.2.1 > 4.2.2.2 > 4.2.2.3 > > -- > Thanks, > Steve Totaro > +18887771888 (Toll Free) > +12409381212 (Cell)
Steve, Those are Level(3)s anycast DNS servers - part of internet legend! I once talked to a Level(3) engineer about how many queries those things do (combined) and it was amazing. I don't remember the exact number but it was something in the TENS OF MILLIONS/day, maybe more. It was one of those numbers (especially for daily traffic) that you just don't really comprehend. I've read (on NANOG, of course) that Level(3) actually encourages (at least doesn't discourage) their public use. They log the queries and sell the results for data mining purposes (DNS Alexa perhaps). -- Kristian Kielhofner http://blog.krisk.org http://www.submityoursip.com http://www.astlinux.org http://www.star2star.com _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
