DNS is not working

[kevin2003]

Hi my DNS server is holding on the old ip address of the machine instead of the new ip address. How do I refresh this, I tried clear cache and reload but nothing is working.

Thanks,

Kevin

 

[GlenJohnson]

First, we need details. How long has this been going on? Has anything changed that could have started this? Just one client or a bunch?

Glen A Johnson
Tek-Tips Florida
When the people fear their government, there is tyranny;
When the government fears the people, there is liberty.'
Thomas Jefferson.

 

[elgrandeperro]

You said "server" is it auth for this domain? Did you verify that it is getting the IP mapping from itself or from a master?

Oh, is this bind or Windows?

 

[kevin2003]

this is all started when I lost my main DC ( I had 2 DC), the one that took over as DC is handing out new range of IP address and the client machines are all renew to this new scope of ip address. But the DNS server is holding on to the old IP address of the client machines. So, when I tried to ping a machine by name it returned the old ip address not the new one.

Thanks,

Kevin Nguyen

 

[stfaprc]

What are you using for the DNS server?

Are the wrong ip addresses being delivered to
the DC
the DNS
other workstations on the lan
pc's from outside the lan
all of the above ?

 

[kevin2003]

I am using my working DC as DNS server. The wrong ip is being delivered to DNS.

 

[TweakMYbox]

Losing your Primary DC can be a pretty big ordeal. Have you been able to move the FSMO roles over to the other DC?

Are you unable to restore the failed DC? Do you have a good backup? If so, I would definitely try re-introducing the primary DC back into the mix.

 

[stfaprc]

You still have not told us what you are using for the DNS.

Have you flushed the DNS entries on the DNS server?
Are you sure that the DNS does not have ip->pc hardcoded?

 

[kevin2003]

I am using the other DC as my DNS server, since before the crash I had 2 DNS servers. I've flushed the DNS entries on the DNS server.

TweakMYbox,

Question for you? I rebuilt the main DC that crashed. I had a good backup using Veritas. Should I restore everything from the backup and let the 2 DCs sync again or should I run DCPromo to bring it in as a new DCs. Which way will not break my DC? I've heard that sometimes when trying to restore from backup it could break the DC??? is that true???

Thanks,

Kevin