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TLS of LDAP

Posted on 2013-01-24
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Last Modified: 2013-02-07
hello experts,

Let me start off by saying that i'm not a  server guy.

if I wanted to run port 389 over TLS to my AD server, would that require that a SSL certificate be loaded on the AD server? If yes, how does that differ from LDAPS other than the port?
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Question by:trojan81
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5 Comments
 
LVL 4

Expert Comment

by:Levi Gwyn
ID: 38816335
You would need to use Active Directory Certificate Services I think.  Below is a quite lengthy article describing how to set that up:

http://social.technet.microsoft.com/wiki/contents/articles/11750.step-by-step-guide-single-tier-pki-hierarchy-deployment.aspx
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Author Comment

by:trojan81
ID: 38816481
right. if LDAPs requires a cert and TLS over 389 requires a cert, what is the difference except for the port?
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LVL 17

Accepted Solution

by:
Tony Massa earned 2000 total points
ID: 38829732
If you install a server authentication certificate on a domain controller then LDAPS will run on TCP port 636 when you restart your domain controller

http://support.microsoft.com/kb/321051
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Author Comment

by:trojan81
ID: 38833856
TMASA99,

TLS over 389 also requires  a server authentication certificate on the DC, correct? So is it that if you select to keep port 389, then you are doing TLS over 389. If you select to use port 636, you are doing LDAPS?
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LVL 17

Expert Comment

by:Tony Massa
ID: 38863563
There is no Start TLS available on 389, as it's the standard LDAP port and TLS requires a certificate, which is only used on the LDAPS port, 636, by default.

http://en.wikipedia.org/wiki/Lightweight_Directory_Access_Protocol#Extended_operations
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