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BIND stops answering on queries

Posted on 2003-02-21
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Last Modified: 2013-12-23
Hello!

I have BIND 8.3.2 on FreeBSD. When it just started, it work's perfectly. But then, after some time it stops answering on queries.
`nslookup test.dns.com.'on remote machine outputs folowing:

DNS request timed out.
    timeout was 2 seconds.

After some more `nslookup test.dns.com.' it comes back and works fine.

I'v noticed, that in syslog there is message at named startup:

check_hints: A records for J.ROOT-SERVERS.NET class 1 do not match hint records
13 root servers

... i am sure, that this should not apear in logfile, and probably it's close to my problem, but what it is and what should i do to solve this problem?

By the way in resolv.conf i hav no nameservers (not even 127.0.0.1).

Thanks in advance,
Uldis
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Question by:shifted
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Accepted Solution

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yokel earned 300 total points
ID: 7994225
J.ROOT-SERVERS.NET is one of the Internet Root DNS servers.
I think your error is saying that it is trying to query J.ROOT-SERVERS.NET, but it is not replying (probably as your IP address for it is wrong in your hints file).
The IP address of J.ROOT-SERVERS.NET should be 192.58.128.30 I think.
Depending on your setup, you should have a file called db.cache in /usr/local/adm (all whatever directory your bind is set up to use in /etc/named.conf).
db.cache contains the hosname.domainname and IP address's of all the Internet root servers. I would check the J.ROOT-SERVERS.NET setting and possibly download a new one from the Internet.
Hope this helps
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Author Comment

by:shifted
ID: 7994588
with `named.root' update i solve the problem about that error in syslog, but queries still not work as they should. I make `nslookup some.domain.net' and immediatly recieve:

DNS request timed out.
    timeout was 2 seconds.
*** Request to ns.my-nameserver.net timed-out

As I started named with `-f' key I see the query where recieved. Then runs some other messages an after a while... i make `nslookup some.domain.net' again and recieve the answer.

I configured my named to use my ISP's DNS server as forwarder. Probably thats why it's so slow?
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Author Comment

by:shifted
ID: 7998194
Yes forwarders works too slow & thats why timeout hapens. But anyway, thanks.
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