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Will using the distribution group as security group impact the Active Directory performance?

Posted on 2009-07-05
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Last Modified: 2012-05-07
Hello,
Good Day,

My question is very simple and straighforward.

If i use the distribution group as security group, will it impact the AD performance? ... In other words, using the distribution group is for email purpose only but if i use it as security group as well for resource access, will it make my users logon time slow or something? ... or will it create an AD replication bottleneck?

Appreciate your quick response.

Thanks in advance
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Question by:amyassein
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Expert Comment

by:Glen Knight
ID: 24780522
Security groups Groups that can have security descriptors associated with them. You define security groups in domains using Active Directory Users And Computers.

Distribution groups Groups that are used as e-mail distribution lists. They can't have security descriptors associated with them. You define distribution groups in domains using Active Directory Users And Computers.

Extract from: http://technet.microsoft.com/en-us/library/bb726978.aspx
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Accepted Solution

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Mike Kline earned 125 total points
ID: 24780526
It could depending on how many groups the user is a member of.  
You can run into an issue known as "token bloat"
http://support.microsoft.com/kb/327825
New resolution for problems with Kerberos authentication when users belong to many groups
http://technet.microsoft.com/en-us/library/cc757478(WS.10).aspx
 ...but as you can see there are also fixes/workarounds in place
There are other concerns with security vs distro lists.  See the thread below, really great discussion from Brian, Simon, and Chris a few months ago
http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Exchange/Q_24349300.html
Thanks
Mike
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Expert Comment

by:Glen Knight
ID: 24780543
but of course you can create mail enabled security groups so why bother with DL's when one group will do both?
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LVL 57

Expert Comment

by:Mike Kline
ID: 24780552
demazter that was the entire debate here:
http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Exchange/Q_24349300.html
I can see both sides of the argument.
Thanks
Mike
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