ldidelot at mixvoip.com
Guest
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 Posted: Mon May 19, 2008 9:52 am Post subject: [asterisk-users] Asterisk temporary hangs when no internet c |
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Hello,
sorry for dropping in so late but I encountered the same problems so I
started playing around with IPTABLES and DNS servers.
For me it looks like asterisk has a problem because it seems to do
reverse dns lookups (PTR records).
For me the following helped:
I installed a local dns recursor. I used the one from powerdns (apt-get
install pdns-recursor). Then I put 127.0.0.1 as only nameserver in
my /etc/resolv.conf. Next thing I did is telling my dns server to be
contain authoritative data for the "in-addr.arpa" zone. I added the
following line
"?auth-zones=in-addr.arpa=/etc/powerdns/zone-in-addr.arpa"
to /etc/powerdns/recursor.conf and then created an empty
file /etc/powerdns/zone-in-addr.arpa.
Now things seem to work without internet.
I do not understand why a PBX is such dependent on internet (DNS)
connectivity. Maybe someone from the dev list can clear things up.
If I disable DNS lookups by some router/iptables magic asterisk cant
even do a normal reload.
Best regards,
Loic Didelot.
On Fri, 2008-04-11 at 13:49 -0500, Andres wrote:
| Quote: | Marius Muja wrote:
| Quote: | Hello all,
I have the following problem: if there is a temporary loss of Internet
connectivity, the asterisk server 'hangs' if it has external SIP
trunks configured. By hanging I mean that any calls between the local
extensions and any calls to the voicemail extension stop working.
Everything works fine again when the internet connectivity returns (I
tested this by removing and reinserting the network cable from the
cable modem).
My guess is that the asterisk server tries resolving the names of the
SIP providers when it tries to re-register to them and because there
is no internet connectivity it hangs there for a while. However in
that time all the local calls to the asterisk server stop working.
Has anybody else encountered this problem?
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Yes, this is a common issue. A workaround is to use IP Addresses or
enter hostnames manually in /etc/hosts
Andres
http://www.neuroredes.com
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Lo?c DIDELOT
MIXvoip S.a.
ldidelot at mixvoip.com
http://www.mixvoip.com |
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