Hello, I would just like to add a report of my own regarding a caching problem with version 3.1.6. I am not sure of the exact details, but the scenario involves our main PDNS server serving rice.edu and a subdomain xxx.rice.edu. The default ttl of rice.edu was 3600 and it was 86400 for xxx.rice.edu. The observed problem was that the A record for xxx.rice.edu was not resolvable as the MX for xxx.rice.edu. Making the ttl's the same at 3600 helped, but in the end to work around the problem, I had to use the forward-zones file to point xxx.rice.edu back to the auth PDNS server to eliminate the A record lookup failures. Of course,restarting the recursor let everything work smoothly for a while. Let me know if there is anything else I can do to help resolve this problem.
Regards, Ken On Fri, May 16, 2008 at 03:43:44PM -0600, Darren Gamble wrote: > Good day, > > During our lab test suite on 3.1.6, we discovered that an old bug has > unfortunately reappeared. It's not present in 3.1.4. We didn't test > 3.1.5. > > The issue is that the cache always caches information it receives in the > Authority Section. This can cause a problem where it indefinitely > consults a server that is no longer supposed to be authoritative for a > zone, but is still configured as such. > > Here's the original thread: > http://mailman.powerdns.com/pipermail/pdns-users/2006-May/003422.html > > ... where Bert noted he had originally fixed it in commit 837. > > This is definitely a blocking issue for us. > > Please let us know if we can provide any more information or help. > Thanks! > > ============================ > Darren Gamble > Systems Architect, Regional Services > Shaw Cablesystems GP > 630 - 3rd Avenue SW > Calgary, Alberta, Canada > T2P 4L4 > (403) 781-4948 > > > _______________________________________________ > Pdns-users mailing list > [email protected] > http://mailman.powerdns.com/mailman/listinfo/pdns-users > _______________________________________________ Pdns-users mailing list [email protected] http://mailman.powerdns.com/mailman/listinfo/pdns-users
