[quote user="Peter Strömblad"]

After a merger last year we have postponed the domain rename procedure - and it is about getting time to get this one done.

Does anyone of you have experience from this undertaking?

The domain is a W2K3 native controlled domain, raised to R2 functionality, with three domain controllers - a number of clients, servers and applications with services.

Are there f.ex. any problems with Backup Exec in such a procedure?

[/quote]

 
Make sure you select AD DS and AD LDS tools under the RSAT. Before we start the rename make sure forest domain activities are stopped. Such as adding new DC, changing forest configuration etc. Then in the member server log in as domain admin and open the command prompt with admin rights.

After a merger last year we have postponed the domain rename procedure - and it is about getting time to get this one done.

Does anyone of you have experience from this undertaking?

The domain is a W2K3 native controlled domain, raised to R2 functionality, with three domain controllers - a number of clients, servers and applications with services.

Are there f.ex. any problems with Backup Exec in such a procedure?

Last nite saved me a good long week of work.

Active Directory Domain Rename (RenDom.Exe) works like expected. Manual intervention is only with software that store user credentials in pair with host information, as Backup Exec does and client domain pointers that are left intact, pointing to no-longer-existent hosts. Besides the very long task list, the effort of restarting all machines, but keeping all settings, security, profiles, etc, was a big SMILE in the middle of the nite. Even all the DNS records change on the fly, and you can rename whole trees, parts of your dc-structure, and distinguish between netbios and full resolv.

Time for a cake! & later on to more productive issues, as moving things to new hardware, better structuring of services, smtp redundancy etc.

You can use the domain rename process to change the names of your domains, and you can also use it to change the structure of the domain trees in your forest. This process involves updating the Domain Name System (DNS) and trust infrastructures as well as Group Policy and service principal names

Yes you can perfrom the domain rename from member server as it is recommended step.The member server which you are going to use to perform the domain rename process from should be identified and prepared.Refer below link for more details.
http://www.tech-faq.com/renaming-domains.html