eddiec wrote:
> hi everyone,
>
> our company has been bought therefore we have to change our AD W2K
> subnet address in order to fit in with the new companies addressing
> scheme. This is the plan
Unless the company that bought yours is using the exact same subnet, it is
unlikely you need to change your IP addresses. Unless, the two companies are
going to be totally merged into one location.
>
> 1) Ensure that only one DNS and DHCP server remain on the network.
If both companies are using AD it is unlikely this is possible, due to zone
security problems for AD integrated zones. But both DNS servers must be able
to resolve the other's domain. You can do this through the use of Secondary
zones on Win2k or conditional forwarders on Win2k3.
>
> 2) Shut down all other servers
>
> 3) Delete the DNS zone
>
> 4) Change the IP address for this server on the NIC
You should never just change the IP address on a DC, add the new address,
then after the DC has registered the new address and the clients DNS server
list has been updated and communication to the new address is verified,
remove the old address.
> 5) Change the DHCP range
This is out of order, DHCP should be changed before the old address is
removed.
> 6) Recreate the forward and reverse lookup zones with appropriate A
> records
Forward zones will be updated by DDNS, will need to create a reverse zone.
> 7) Power on the other servers
>
> 8) Change their IP addresses
>
> 9) Change the IP address of the firewall and change NAT entries as
> appropriate
>
> Is this liable to succeed or will I trash my network?
If not done in the right order, it is likely to trash domain communication.
The simple way to achieve this, and this depends on what you are really
trying to achieve, is to set up a VPN link between the two networks, Then
create secondary zones for the other domain on each DNS, and create a trust
between to two domains. Then, if you plan on merging into one domain use
ADMT to move accounts from one domain to the other.
--
Best regards,
Kevin D4 Dad Goodknecht Sr. [MVP]
Hope This Helps
===================================
When responding to posts, please "Reply to Group"
via your newsreader so that others may learn and
benefit from your issue, to respond directly to
me remove the nospam. from my email address.
===================================
http://www.lonestaramerica.com/
===================================
Use Outlook Express?... Get OE_Quotefix:
It will strip signature out and more
http://home.in.tum.de/~jain/software/oe-quotefix/
===================================
Keep a back up of your OE settings and folders
with OEBackup:
http://www.oehelp.com/OEBackup/Default.aspx
===================================
Similar Threads
