Re: about a query

2011-02-21 Thread Terry.
Thanks a lot Chris. 2011/2/21 Chris Buxton : > That depends on the implementation. Really old versions of BIND would > have accepted the A record. However, it's not in-bailiwick, so any > name server that would accept it is very likely vulnerable to cache > poisoning. > > Current versions of BIND

Question about some oddities in the logs

2011-02-21 Thread Eivind Olsen
Hello. I've recently put into production a new recursive nameserver, and decided to take a look in the logfiles (the old servers didn't have logging enabled so I can't really compare the current logs with whatever the old ones would have been). I understand most of the entries in the logs + statist

Re: about a query

2011-02-21 Thread Chris Buxton
That depends on the implementation. Really old versions of BIND would have accepted the A record. However, it's not in-bailiwick, so any name server that would accept it is very likely vulnerable to cache poisoning. Current versions of BIND (probably stretching back to somewhere in the 8.2 series)

about a query

2011-02-21 Thread Terry.
Hello, Please see the dig info below. ns1.dns-diy.com is the auth-server of duowan.com domain. My question is, when ns1.dns-diy.com answer with a CNAME for "udb.duowan.com", and the answer also include an A RR for that alias, how will the public DNS cache servers handle this answer? Will the DNS c

underscore in photos_ugc.l.google.com

2011-02-21 Thread Matus UHLAR - fantomas
Helo, did anyone notice that hostname at google has an underscore? lh6.ggpht.com. 86400 IN CNAME photos_ugc.l.google.com. photos_ugc.l.google.com. 300IN A 74.125.39.132 -- Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/ Warning: I wish NOT to