[asterisk-users] Strange problem with Asterisk 1.8.9.3

[dotnetdub]

Looks like a DNS issue.


On 21 April 2013 11:05, Dereck D <dereck.s at gmail.com> wrote:

> Hello List.
> Last month i started to face a strange issue on an asterisk server
> 1.8.9.3 built on Centos 5.3 x86_64 dedicated server.
> out of the blue UDP stops responding .. and keep getting the following
> output:
>
> ---------------------------------- Opening message for the problem
> --------------------------------------------------
> [Mar 21 09:57:04] ERROR[6748] netsock2.c:
> getaddrinfo("pbx2.server.com", "(null)", ...): Temporary failure in
> name resolution
> [Mar 21 09:57:04] WARNING[6748] acl.c: Unable to lookup 'pbx2.server.com'
> ----------------------------------------------------------------THEN
> -------------------------------------------------------------
> [Mar 21 09:57:04] NOTICE[6748] chan_sip.c: Peer 'YYYY' is now
> UNREACHABLE!  Last qualify: 10
> [Mar 21 09:57:04] NOTICE[6748] chan_sip.c: Peer 'C1045' is now
> UNREACHABLE!  Last qualify: 140
> [Mar 21 09:57:04] NOTICE[6748] chan_sip.c: Peer 'XXXX' is now
> UNREACHABLE!  Last qualify: 33
> [Mar 21 09:57:15] NOTICE[6748] chan_sip.c:    -- Registration for
> '8885008 at pbx2.server.com' timed out, trying again (Attempt #3)
> [Mar 21 09:57:21] NOTICE[6748] chan_sip.c: Peer 'C3000' is now
> UNREACHABLE!  Last qualify: 87
> [Mar 21 09:57:21] NOTICE[6748] chan_sip.c: Peer 'C5005' is now
> UNREACHABLE!  Last qualify: 241
> [Mar 21 09:57:21] NOTICE[6748] chan_sip.c: Peer 'C1071' is now
> UNREACHABLE!  Last qualify: 117
> [Mar 21 09:57:21] NOTICE[6748] chan_sip.c: Peer 'C1070' is now
> UNREACHABLE!  Last qualify: 115
> [Mar 21 09:57:21] NOTICE[6748] chan_sip.c: Peer 'C1077' is now
> UNREACHABLE!  Last qualify: 101
> [Mar 21 09:57:21] NOTICE[6748] chan_sip.c: Peer 'C1073' is now
> UNREACHABLE!  Last qualify: 96
> [Mar 21 09:57:21] NOTICE[6748] chan_sip.c: Peer 'C1047' is now
> UNREACHABLE!  Last qualify: 132
> [Mar 21 09:57:21] NOTICE[6748] chan_sip.c: Peer 'C1072' is now
> UNREACHABLE!  Last qualify: 138
> [Mar 21 09:57:21] NOTICE[6748] chan_sip.c: Peer 'C1042' is now
> UNREACHABLE!  Last qualify: 158
> [Mar 21 09:57:21] NOTICE[6748] chan_sip.c: Peer 'C5006' is now
> UNREACHABLE!  Last qualify: 267
> [Mar 21 09:57:21] NOTICE[6748] chan_sip.c: Peer 'C1053' is now
> UNREACHABLE!  Last qualify: 136
> [Mar 21 09:57:41] NOTICE[6748] chan_sip.c:    -- Registration for
> '8885005 at pbx2.server.com' timed out, trying again (Attempt #3)
> [Mar 21 09:57:41] NOTICE[6748] chan_sip.c: Peer 'ipkall1' is now
> UNREACHABLE!  Last qualify: 168
> [Mar 21 09:57:41] NOTICE[6748] chan_sip.c: Peer 'C1078' is now
> UNREACHABLE!  Last qualify: 141
> [Mar 21 09:57:41] NOTICE[6748] chan_sip.c: Peer 'C1051' is now
> UNREACHABLE!  Last qualify: 139
> [Mar 21 09:57:41] NOTICE[6748] chan_sip.c: Peer 'C1046' is now
> UNREACHABLE!  Last qualify: 157
> [Mar 21 09:57:41] NOTICE[6748] chan_sip.c: Peer 'C1076' is now
> UNREACHABLE!  Last qualify: 116
>
>
> this problem kept repeating randomly two or three times a day causing
> me losses. and then i migrated to another Centos 6x x86_64 dedicated
> server same asterisk version.
> everything returns to normal if i reboot the server.  for a moment i
> thought i wasn't even able to nslookup but i could wget or yum or do
> other stuff..although i have my iptables disabled for a the last week
> for testing purposes.
> what i did today after the problem is:
> bindaddress: set to server IPv4 address instead of defaulting.
> disabled IPv6 from the server.
>
>
> any suggestions to what is causing this issue?
>
> --
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