Named errors

[Gary Lopez]

Hello everyone,
     This problem started over the weekend and not sure why. I have been 
running the same version of bind 8.1.2 on Solaris 2.7 for the past 4 
years without incident. Since this weekend however I started seeing 
error messages about wrong ans. name and bad referrals. Is this an 
attack or is there something in my bind configuration I need to modify?

example:

Jun 27 07:21:40 named[11645]: bad referral (. !< pebble.com)
Jun 27 07:21:40 DNS-server named[11645]: bad referral 
(169.218.in-addr.arpa !< 87.169.218.in-addr.arpa)
Jun 27 07:21:40 DNS-server last message repeated 1 time
Jun 27 07:21:51 DNS-server named[11645]: wrong ans. name 
(g.www.ms.akadns.net != toggle.www.ms.akadns.net)
Jun 27 07:21:51 DNS-server named[11645]: wrong ans. name 
(lb1.www.ms.akadns.net != toggle.www.ms.akadns.net)
Jun 27 07:21:51 DNS-server last message repeated 5 times
Jun 27 07:21:51 DNS-server named[11645]: wrong ans. name 
(lb1.www.ms.akadns.net != g.www.ms.akadns.net)
Jun 27 07:21:51 DNS-server last message repeated 3 times
Jun 27 07:22:09 DNS-server named[11645]: bad referral (. !< sandgrabber.com)

-- 
Gary D Lopez
Unix Systems Administrator
Catapult Communications
160 S Whisman Rd
Mountain View, CA 94041
Ph  (650) 314-1029
Fax (650) 960-1029