On Fri, Sep 3, 2010 at 10:37 AM, Greg Rundlett (freephile) < g...@freephile.com> wrote:
> I have a strange problem where one (and only one as far as we know) > particular website becomes inaccessible to our office. > > The "fix" for this problem is to reboot the Comcast cable modem, however I > don't understand how the modem could be the culprit. > > The website in question is nnerenmls.com and the modem is configured to > use Comcast's DNS servers.... > 68.87.71.226 > 68.87.73.242 > > Those /are/ Comcast DNS servers in their "opt-out" configuration which means that those are the servers that do regular DNS. The other list is for Comcast's "Domain Helper" service which is their "service" to answer your typos with ads. > One red herring: It would seem that Comcast changed their DNS servers, > because the ones currenty in the modem configuration do not appear in the > list http://dns.comcast.net/dns-ip-addresses.php I thought to myself, "I > just switch to Google's Public DNS servers" (8.8.8.8 and 8.8.4.4) I'm > pretty sure they are not going to change. However, it doesn't make sense to > me that one website would fail, while general DNS would still be working. > And, at the time of the failures, other people using Comcast can resolve > that domain meaning it doesn't even appear to be an issue where the target > domain is occasionally falling off the web. > > Any ideas on what could cause this and how to troubleshoot? > > Greg Rundlett > > >
_______________________________________________ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
