[asterisk-bugs] [JIRA] (ASTERISK-26113) res_pjsip: Lots of DNS lookups of local hostname

Asterisk Team (JIRA) noreply at issues.asterisk.org
Mon Jun 13 12:13:57 CDT 2016


     [ https://issues.asterisk.org/jira/browse/ASTERISK-26113?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Asterisk Team updated ASTERISK-26113:
-------------------------------------

    Status: Waiting for Feedback  (was: Waiting for Feedback)

> res_pjsip: Lots of DNS lookups of local hostname
> ------------------------------------------------
>
>                 Key: ASTERISK-26113
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-26113
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Resources/res_pjsip
>    Affects Versions: SVN
>         Environment: CentOS 6.5 and Fedora 23.
>            Reporter: Ross Beer
>            Assignee: Asterisk Team
>            Severity: Minor
>         Attachments: pjsip.conf
>
>
> Asterisk is performing thousands of DNS lookups per minute. 
> The lookups are for its own host name for A and AAAA records. These are milliseconds apart and produce a DoS attack on the name servers.
> This can be confirmed by having incoming calls and performing a wireshark.



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