[asterisk-bugs] [JIRA] (ASTERISK-29256) PJSIP is communicating directly with a name server

Joshua C. Colp (JIRA) noreply at issues.asterisk.org
Thu Jan 21 05:23:59 CST 2021


     [ https://issues.asterisk.org/jira/browse/ASTERISK-29256?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joshua C. Colp closed ASTERISK-29256.
-------------------------------------

    Resolution: Not A Bug

PJSIP isn't communicating outwards to that. It received a UDP packet to its SIP port with a source IP address and port of 209.244.0.4:53. A packet capture would confirm such a thing.

> PJSIP is communicating directly with a name server
> --------------------------------------------------
>
>                 Key: ASTERISK-29256
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-29256
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_pjsip
>    Affects Versions: 16.15.0
>         Environment: Linux
>            Reporter: Private Name
>
> ERROR MESSAGE:
> [Jan 21 03:51:02] ERROR[148846]: pjproject: <?>:           sip_transport.c Error processing 113 bytes packet from UDP 209.244.0.4:53 : PJSIP syntax error exception when parsing 'Request Line' header on line 1 col 2:"
> the IP address above is a name server, why is PJSIP directly talking to  name server? The machine has is its own caching name server and "nslookup" reads data from 127.0.0.1:53. 
> If PJSIP is directly doing name resolution, how do I force ut to go via the local server and not off to the Internet?



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