DNS Issue

  • Thread starter Thread starter DOUG
  • Start date Start date
D

DOUG

Hello:

This morning, we had to bring down one of our DNS servers (esternal),
replace and then we added a 3rd server. So, we changed IP's on 1 and added
another is basically the changes that were made.

Still, when doing NSLOOKUP, I'm getting all of the old entries, which ahve
to be cached somewhere since I went over my servers twice already....and the
entries being returned by nslookup, do not exist on my servers.

I understand it takes a bit for DNS to replicate, but I have never had it
take this long and I am wondering if I missed something here. Entries were
chagned on my servers and the new server added to our domain. What can I do
if anything, to correct this issue.

Thanks
 
DOUG said:
*Hello:

This morning, we had to bring down one of our DNS server
(esternal),
replace and then we added a 3rd server. So, we changed IP's on 1 an
added
another is basically the changes that were made.

Still, when doing NSLOOKUP, I'm getting all of the old entries, whic
ahve
to be cached somewhere since I went over my servers twic
already....and the
entries being returned by nslookup, do not exist on my servers.

I understand it takes a bit for DNS to replicate, but I have neve
had it
take this long and I am wondering if I missed something here. Entrie
were
chagned on my servers and the new server added to our domain. Wha
can I do
if anything, to correct this issue.

Thanks
Click to expand...


-
lan
 
In
DOUG said:
Hello:

This morning, we had to bring down one of our DNS servers
(esternal), replace and then we added a 3rd server. So,
we changed IP's on 1 and added another is basically the
changes that were made.

Still, when doing NSLOOKUP, I'm getting all of the old
entries, which ahve to be cached somewhere since I went
over my servers twice already....and the entries being
returned by nslookup, do not exist on my servers.

I understand it takes a bit for DNS to replicate, but I
have never had it take this long and I am wondering if I
missed something here. Entries were chagned on my servers
and the new server added to our domain. What can I do if
anything, to correct this issue.

Thanks
Click to expand...

What is the TTL of the records in the zone?
 
I am having a similar problem I think. I changed an IP of
a server. When I try to ping the computer using the
computer name, it returns the old IP address. I changed
it a long time ago and it hasn't updated the information?
I know my replication is working and it can take up to an
hour for DNS to update this information. Is there any way
to do this manually? I've tried removing the computer
from active directory and adding it back but it doesn't
work.

Thanks,
Nick
 
In
Nick said:
I am having a similar problem I think. I changed an IP of
a server. When I try to ping the computer using the
computer name, it returns the old IP address. I changed
it a long time ago and it hasn't updated the information?
I know my replication is working and it can take up to an
hour for DNS to update this information. Is there any way
to do this manually? I've tried removing the computer
from active directory and adding it back but it doesn't
work.
Click to expand...

Are you running WINS?
Is the old record still in WINS?

What is the TTL of the record?
It could still be in the DNS cache on the system ruin ipcofig /flushdns to
clear the system cache.
 
Back
Top