DNS is not responding to the queries properly.

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G

Guest

Hi,
I have to DNS servers which are running fine but suddenly they stop
repondong to the queries. If I stop the service nd restart it. Again they
start working fine. when they stop working and i do a nslookup and try to
query for any domain it comes back with out reply then only I would know that
the DNS is not working, otherwise the service ooks runnin doesnot show any
error in the event viewer. I am trying to resolve this from past six months
and tired of it. please help me.
 
Hi

What operating system?

Kind regards
--
Mark Renoden [MSFT]
Windows Platform Support Team
Email: (e-mail address removed)

Please note you'll need to strip ".online" from my email address to email
me; I'll post a response back to the group.

This posting is provided "AS IS" with no warranties, and confers no rights.
 
Are you saying you have TWO (2) DNS servers that
both stop responding at the same time???

Steve Duff, MCSE, MVP
Ergodic Systems, Inc.
 
In
avi said:
Hi,
I have to DNS servers which are running fine but suddenly they stop
repondong to the queries. If I stop the service nd restart it. Again
they start working fine. when they stop working and i do a nslookup
and try to query for any domain it comes back with out reply then
only I would know that the DNS is not working, otherwise the service
ooks runnin doesnot show any error in the event viewer. I am trying
to resolve this from past six months and tired of it. please help me.
Click to expand...

If this is Windows 2003, see this:

830381 - Server Responsiveness Degrades and Queries Time Out When You Run
the DNS Server Service:
http://support.microsoft.com/default.aspx?scid=kb;en-us;830381

830905 - DNS Intermittently Stops Resolving Some Host Names:
http://support.microsoft.com/?id=830905

If not, please elaborate.

Thanks


--
Regards,
Ace

G O E A G L E S !!!
Please direct all replies ONLY to the Microsoft public newsgroups
so all can benefit.

This posting is provided "AS-IS" with no warranties or guarantees
and confers no rights.

Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT, MVP
Microsoft Windows MVP - Windows Server - Directory Services

Security Is Like An Onion, It Has Layers
HAM AND EGGS: A day's work for a chicken;
A lifetime commitment for a pig.
 
Hi,
Sorry for the late reply.

I am using Windows 2000 server. Let me explain what happens once in a while
I get a complaint from my employees saying their clients didnot receive the
email they sent then I go in to my exchange server and see there is a queue
piled up. I thought in the begining it's a problem with my exchange but
finally found that it's the DNS server which is not working properly. DNS
server does not show any error in the event viewer but internally it stops
resolving the names. I noticed it when I did nslookup and tried to query I
noticed there is no reply from DNS server. Then if I stop the DNS service and
restart it everything works fine. No errors. But again you will never know
suddenly the error comes back. I have two DNS servers , I tried switching to
the second DNS but again the second DNS came back with same error. I am not
understanding whats killing the DNS internally. You will not know till you do
a nslookup and query the DNS.
Please let me know if any one has any ideas.
Thank you

Mark Renoden said:
Hi

What operating system?

Kind regards
--
Mark Renoden [MSFT]
Windows Platform Support Team
Email: (e-mail address removed)

Please note you'll need to strip ".online" from my email address to email
me; I'll post a response back to the group.

This posting is provided "AS IS" with no warranties, and confers no rights.

avi said:
Hi,
I have to DNS servers which are running fine but suddenly they stop
repondong to the queries. If I stop the service nd restart it. Again they
start working fine. when they stop working and i do a nslookup and try to
query for any domain it comes back with out reply then only I would know
that
the DNS is not working, otherwise the service ooks runnin doesnot show any
error in the event viewer. I am trying to resolve this from past six
months
and tired of it. please help me.
Click to expand...
Click to expand...
 
Hi avi

May I suggest re-applying SP4 and failing this, the following hotfix:

837752 DNS stops responding and consumes 100 percent of processor time when
you
http://support.microsoft.com/?id=837752

Kind regards
--
Mark Renoden [MSFT]
Windows Platform Support Team
Email: (e-mail address removed)

Please note you'll need to strip ".online" from my email address to email
me; I'll post a response back to the group.

This posting is provided "AS IS" with no warranties, and confers no rights.

avi said:
Hi,
Sorry for the late reply.

I am using Windows 2000 server. Let me explain what happens once in a
while
I get a complaint from my employees saying their clients didnot receive
the
email they sent then I go in to my exchange server and see there is a
queue
piled up. I thought in the begining it's a problem with my exchange but
finally found that it's the DNS server which is not working properly. DNS
server does not show any error in the event viewer but internally it
stops
resolving the names. I noticed it when I did nslookup and tried to query I
noticed there is no reply from DNS server. Then if I stop the DNS service
and
restart it everything works fine. No errors. But again you will never know
suddenly the error comes back. I have two DNS servers , I tried switching
to
the second DNS but again the second DNS came back with same error. I am
not
understanding whats killing the DNS internally. You will not know till you
do
a nslookup and query the DNS.
Please let me know if any one has any ideas.
Thank you

Mark Renoden said:
Hi

What operating system?

Kind regards
--
Mark Renoden [MSFT]
Windows Platform Support Team
Email: (e-mail address removed)

Please note you'll need to strip ".online" from my email address to email
me; I'll post a response back to the group.

This posting is provided "AS IS" with no warranties, and confers no
rights.

avi said:
Hi,
I have to DNS servers which are running fine but suddenly they stop
repondong to the queries. If I stop the service nd restart it. Again
they
start working fine. when they stop working and i do a nslookup and try
to
query for any domain it comes back with out reply then only I would
know
that
the DNS is not working, otherwise the service ooks runnin doesnot show
any
error in the event viewer. I am trying to resolve this from past six
months
and tired of it. please help me.
Click to expand...
Click to expand...
Click to expand...
 
In
avi said:
Hi,
Sorry for the late reply.

I am using Windows 2000 server. Let me explain what
happens once in a while I get a complaint from my
employees saying their clients didnot receive the email
they sent then I go in to my exchange server and see
there is a queue piled up. I thought in the begining it's
a problem with my exchange but finally found that it's
the DNS server which is not working properly. DNS server
does not show any error in the event viewer but
internally it stops resolving the names. I noticed it
when I did nslookup and tried to query I noticed there is
no reply from DNS server. Then if I stop the DNS service
and restart it everything works fine. No errors. But
again you will never know suddenly the error comes back.
I have two DNS servers , I tried switching to the second
DNS but again the second DNS came back with same error. I
am not understanding whats killing the DNS internally.
You will not know till you do a nslookup and query the
DNS.
Please let me know if any one has any ideas.
Click to expand...

What do you have configured as forwarders on your DNS servers?
Forward to your ISP, if you use forwarding, do not forward to each other.
Forwarding to each other will cause a DNS loop and DNS will fail.
 
Hi,
I will try doing that in the wekend as I cannot work on it in the weekdays.
will update you after that
Thank You

Mark Renoden said:
Hi avi

May I suggest re-applying SP4 and failing this, the following hotfix:

837752 DNS stops responding and consumes 100 percent of processor time when
you
http://support.microsoft.com/?id=837752

Kind regards
--
Mark Renoden [MSFT]
Windows Platform Support Team
Email: (e-mail address removed)

Please note you'll need to strip ".online" from my email address to email
me; I'll post a response back to the group.

This posting is provided "AS IS" with no warranties, and confers no rights.

avi said:
Hi,
Sorry for the late reply.

I am using Windows 2000 server. Let me explain what happens once in a
while
I get a complaint from my employees saying their clients didnot receive
the
email they sent then I go in to my exchange server and see there is a
queue
piled up. I thought in the begining it's a problem with my exchange but
finally found that it's the DNS server which is not working properly. DNS
server does not show any error in the event viewer but internally it
stops
resolving the names. I noticed it when I did nslookup and tried to query I
noticed there is no reply from DNS server. Then if I stop the DNS service
and
restart it everything works fine. No errors. But again you will never know
suddenly the error comes back. I have two DNS servers , I tried switching
to
the second DNS but again the second DNS came back with same error. I am
not
understanding whats killing the DNS internally. You will not know till you
do
a nslookup and query the DNS.
Please let me know if any one has any ideas.
Thank you

Mark Renoden said:
Hi

What operating system?

Kind regards
--
Mark Renoden [MSFT]
Windows Platform Support Team
Email: (e-mail address removed)

Please note you'll need to strip ".online" from my email address to email
me; I'll post a response back to the group.

This posting is provided "AS IS" with no warranties, and confers no
rights.

Hi,
I have to DNS servers which are running fine but suddenly they stop
repondong to the queries. If I stop the service nd restart it. Again
they
start working fine. when they stop working and i do a nslookup and try
to
query for any domain it comes back with out reply then only I would
know
that
the DNS is not working, otherwise the service ooks runnin doesnot show
any
error in the event viewer. I am trying to resolve this from past six
months
and tired of it. please help me.
Click to expand...
Click to expand...
Click to expand...
 
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