Bind 8.2.2p5 listening on random UDP ports?
jim at rfc1035.com
Sat Mar 25 23:56:43 UTC 2000
>>>>> "Lincoln" == Lincoln Yeoh <lyeoh at pop.jaring.nospam.my> writes:
Lincoln> Hi, Anyone know why my BIND nameds are listening on
Lincoln> random UDP ports? Bound to any interface too!
Lincoln> And I went to the trouble of binding them to particular
Lincoln> interfaces too. Sheesh.
The name server uses a random, non-privileged port for sending queries
to other name servers. This port number is reported in the logs when
the name server starts:
Forwarding source address is [0.0.0.0].nnnnn
where nnnnn is the port number it uses.
This port is not used for receiving queries. [How could another name
server know which (random) port the name server was using today?] If a
query is sent to this port, a waring is generated in the logs.
The query-source clause can be used to tell the name server which
address and/or port number should be used for making queries to other
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