----- "Olle E. Johansson" <o...@edvina.net> wrote: > 5 feb 2010 kl. 09.28 skrev --[ UxBoD ]--: > > > ----- "Randy R" <randulo2...@gmail.com> wrote: > > > >> On Fri, Feb 5, 2010 at 8:41 AM, Olle E. Johansson <o...@edvina.net> > >> wrote: > >>>>> What I have seen on my asterisk box when I had a up/down adsl > line > >> was > >>>>> that the asterisk box couldn't do dns resolution and would > hang( > >> well no > >>>>> other internal calls could be made, seemed like some sort of > >> semaphore > >>>>> was stuck) when the adsl came up and dns could be done, > >> everything > >>>>> worked fine again > >> > >> Confirmed and experienced years ago in a release far, far away. > >> > >>> Yes, that is the case. Asterisk doesn't have asynchronus DNS > >> support, so in order to work when the link is down, you need a > local > >> resolver, like a caching BIND server, on the same host. The calls > to > >> DNS resolvers in Asterisk is synchronus, so Asterisk will wait for > the > >> response to arrive. > >> > >> IIRC, at the time I had this problem, asterisk did not answer > analog > >> phone lines either so as a company we had no phones and had to > revert > >> to regular telephones plugged into the wall. Even if Internet is > >> working, if the configured DNS is down, you're still sunk. This > >> sorely > >> needs to be fixed IMO. > >> > >> /r > > > > Why not run a internal DNS with forwarders to your ISP ? That way > Asterisk can still resolve itself and hosts internally. > > > See above: > >> you need a local > >> resolver, like a caching BIND server, on the same host. > > /O :-)
Doh! :) My philosophy has always been to install a local named server, whether it be for Asterisk or something else, as most of the time everything I do is behind NAT and I prefer to resolve internal addresses. This also help if you run your own mailserver and make extensive queries to RBLs etc. -- Thanks, Phil -- _____________________________________________________________________ -- 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