aando
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Is it ok to use a .com for your internal Domain Name.
I was always taught that you never put a .com on your Domain name. I have always used .local. In the last few years we had a 2008 SBS that had issues with certificates. One of my colleagues wants to make our new domain a .com on the internal and external domain so he doesn't have problems with the SSL certificates that he is going to get from Godaddy. I want to use .local on the internal and .com on the external basically because I think it is safer. We will use Exchange 2010 on our network. It has a lot of auto discovery and other junk that he says will be easier to deal with having a .com on both. What says the public?
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BTW, just to clarify, in terms of your safety comment, just because you use the same domain name internally and externally does not mean that your internal DNS server is exposed to the Internet. You would still set up an external DNS zone using the same domain name and use it to resolve your external host names. Thus the term "split DNS."
Others say you should use a dedicated internal name.
You should NOT use .local.
Use .lan or .(other word).
Mac's think .local means local machine, not local network.
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http://forums.untangle.com/off-topic/32205-what-should-internal-domain-name.html