DNS root servers

[Victoria Leung]

I have configure the DNS with root.hint file like this:
. 3600000 IN NS DNS0.SONERA.GRX.
DNS0.SONERA.GRX. 3600000 IN A 194.215.72.38

When the root server responds, it provides a NS record with TTL=2 days, and A record with TTL=1 day. (attached file)

I supposed that the "3600000" in root.hint file will override the TTL from root server.

However after one day, there is an error in syslog:
Apr 22 16:36:05 DNS02 named[18995]: sysquery: no addrs found for root NS ()

And the DNS cannot query the root server anymore.... :(

Any ideas why? Thanks for your help in advance!

[Bharat Katkar]

Just check your entry again, I think it should be like this:

. 3600000 IN NS DNS0.SONERA.GRX.
DNS0.SONERA.GRX. 3600000 A 194.215.72.38

instead of
. 3600000 IN NS DNS0.SONERA.GRX.
DNS0.SONERA.GRX. 3600000 IN A 194.215.72.38

[Victoria Leung]

Hi,

I think class "IN" is optional, I read from the book that "if the class is omitted, the class IN is assumed"....

Anyway, I will give it a try... :)

[Bharat Katkar]

Victoria,

Please take look at similar problem that is being discussed in this forum.

Click on the link:
below:http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=565295