Top level domains

I have an existing forest existingcompany.local and domain existingcompany.local. With an exchange 2007 box and SSL for existingcompany.local. The SSL expires in 3 weeks and I have since learned that when I renew the SSL that I will no longer be able to add Subject Alt Names to the SSL for .local. addresses.

What can I do to transition the ,local to ,com?
abustraanAsked:
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Simon Butler (Sembee)ConsultantCommented:
This question again?
This is being asked frequently.

You don't do anything with your domain. Just reconfigure Exchange to use your external host name internally.
http://semb.ee/hostnames2007

Simon.
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Zsolt PribuszCommented:
There is a tool created by digicert to help this process.

https://www.digicert.com/internal-domain-name-tool.htm
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Suliman Abu KharroubIT Consultant Commented:
As motioned above, split DNS technique will help you.

Create a DNS zone for you external domain internally and create all the public dns records in it be able to resolve the these names from the internal network. but for exchange records point them to the internal IP of exchange services so they will be resolved internally not externally. Last thing, make sure to configure the Exchange services URLs to use the external names for both internal and external URLs.
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abustraanAuthor Commented:
Thanks for the prompt responses.

Sorry Simon for bringing up "old" topics. I'm noob to all of this stuff. I haven't had to "touch" the exchange servers in question for years with the exception off renewing SSL certs every 2 years. I thought I had it all worked out with just adding the FQDN for .local and then it changed again to where I couldn't even do that.

I'll try and discern the solutions from the answers above in the next couple of weeks and award accordingly.
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abustraanAuthor Commented:
Learning about Split-Brain DNS was somewhat interesting and I had to do it for both of my .local domains that I am hosting in-house, additionally I learned about loopback rules in my SonicWall.
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