Log Entries DoS Attacks

[wwebb at adni.net]

Can someone please explain the significance of these log entries?

Nov 20 23:34:43 www named[2436]: ns_forw: 
query(www.mdwg.mer.cap.gov) contains
our address (ns1.cap.gov:198.88.0.19)

Nov 21 07:37:09 www named[2436]: dangling CNAME pointer 
(rs.internic.net)

On an unrelated issue, has anyone implemented or does anyone 
have an opinion regarding implementing the patch and DoS attack 
counter measures found at: 

http://www.ciac.org/ciac/bulletins/j-063.shtml

Thanks, Bill Webb