At 11:31 08-11-2008, Jim Hermann - UUN Hostmaster wrote: >Why does my dkim-filter make and keep open so many connecting to my upstream >DNS?
dkim-filter generates DNS queries to get DKIM and ADSP records. >I found over 150 connections that look like this in netstat -anp: > >udp 0 0 69.94.104.180:43052 <upstream DNS #1>:53 >ESTABLISHED 3889/dkim-filter > >And over 30 connections that look like this in netstat -anp: > >udp 0 0 69.94.104.180:43052 <upstream DNS #2>:53 >ESTABLISHED 3889/dkim-filter > > >And only one like this: > >udp 0 0 127.0.0.1:59116 127.0.0.1:53 >ESTABLISHED 3889/dkim-filter The above are DNS queries. >I restarted dkim-filter and they all went away. They don't come back right >away. I assume that dkim-filter is connecting to the second nameserver in >my /etc/resolv.conf file when the first nameserver is not available. I >don't understand why it opens so many connections over a period of weeks and >leaves them open. Yes, that would be why you are seeing connections to the second nameserver. libar can resend the query to the next nameserver in the list of nameservers. Regards, -sm ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ dkim-milter-discuss mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/dkim-milter-discuss
