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Active Directory Domain name, .lan or .com?

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Last Modified: 2012-05-11
Add Active Directory in a MAC/Linux environment, current Linux DNS server use mycompany.com, should AD use mycompany.lan or mycompany.com, which is better? We are not going to replace linux DNS server recently. Most MAC clients will not join windows domain. I thought using .lan is better(MAC has some issues with .local). Just need to add a conditional forwarder in Linux&AD DNS servers. If using the same .com domain name, will it cause problems, any benefit?
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Lee W, MVPTechnology and Business Process Advisor
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Most Valuable Expert 2013

Commented:
OLDER Macs had issues with .local - newer ones SHOULD be just fine.  That said, I'd probably be inclined to use .lcl - you don't want to use a routable domain name unless it's EXCLUSIVELY and SPECIFICALLY for AD.  For example, if you really wanted to, you COULD go with ad.mycompany.com - ad would be a sub-domain (DNS-wise) and shouldn't conflict with any other domains/DNS resolution.

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Commented:
Do you mean you prefer .local instead of .lan?Is there any difference between these two options? I can't use ad.mycompany.com in this case. Using the same mycompany.com is absolutely not recommended, right?
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Top Expert 2013

Commented:
Do you ever plan to use Office365, if you do take a look at Mark's blog entry

http://markparris.co.uk/2011/03/08/active-directory-local-domain-design-and-office-365/

I didn't know that until a session at the MVP summit (where that blog entry came from)

Thanks

Mike

Author

Commented:
There is no plan to use Office365 in the near future. If I use .com and most workstations(MAC) and servers(Linux) still use Linux DNS as their primary DNS server, will it cause a problem? How to configure this, manually add all records in both DNS servers?
Principal Support Engineer
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