[nycbug-talk] dns slaves serve up empty data

Miles Nordin carton at Ivy.NET
Thu Jul 30 22:22:36 EDT 2009


>>>>> "ms" == Marco Scoffier <marcoscoffier at gmail.com> writes:
>>>>> "b" == billtotman  <billtotman at billtotman.com> writes:

    ms> I was trying to test the zone transfer with telnet

the way you test zone transfers is:

 dig metm.org. axfr @primary

Also in other cases of debugging broken slave servers, but not this
case, you may want to check:

 dig metm.org. soa @<primary or secondary>

and look at the serial number.  The slave will not AXFR unless the
master has a higher serial number.  but, that is not your problem
because the slave is reporting SERVFAIL rather than old data---your
guess that the slave cannot download the zone and the Expire time in
the SOA has elapsed, is probably right.

     b> Have you seen the latest DNS security reports and applied the
     b> latest patches?

pfft, whatever.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 304 bytes
Desc: not available
URL: <https://lists.nycbug.org:8443/pipermail/talk/attachments/20090730/91405153/attachment.bin>


More information about the talk mailing list