BIND stops answering on queries

Posted on 2003-02-21
Medium Priority
Last Modified: 2013-12-23

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

Thanks in advance,
Question by:shifted
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2

Accepted Solution

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 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

Author Comment

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?

Author Comment

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

Featured Post

Moving data to the cloud? Find out if you’re ready

Before moving to the cloud, it is important to carefully define your db needs, plan for the migration & understand prod. environment. This wp explains how to define what you need from a cloud provider, plan for the migration & what putting a cloud solution into practice entails.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

When it comes to security, there are always trade-offs between security and convenience/ease of administration. This article examines some of the main pros and cons of using key authentication vs password authentication for hosting an SFTP server.
This article will show how Aten was able to supply easy management and control for Artear's video walls and wide range display configurations of their newsroom.
Viewers will learn how to connect to a wireless network using the network security key. They will also learn how to access the IP address and DNS server for connections that must be done manually. After setting up a router, find the network security…
Michael from AdRem Software explains how to view the most utilized and worst performing nodes in your network, by accessing the Top Charts view in NetCrunch network monitor (https://www.adremsoft.com/). Top Charts is a view in which you can set seve…
Suggested Courses

752 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question