November 2004
Intermediate to advanced
448 pages
13h 56m
English
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Domain Controllers
If it were not for domain controllers, you would not have an Active Directory. The domain controllers are responsible for the entire authentication of users, storage of objects, control of GPOs, and control of the Active Directory database. This is a lot of responsibility, which also requires a lot of security. The following is a list of key responsibilities of a domain controller in Active Directory:
- Authentication of users
The domain controllers are responsible for authenticating all the users that submit credentials. The desired authentication protocol is Kerberos, but if the computer that is generating the authentication does not support Kerberos, a form of NTLM will be used. In most cases, NTLM v2 will be used in place of Kerberos. Table 13-1 breaks down which scenarios use Kerberos and which use NTLM.
- Storage of the Active Directory database
The domain controllers store the Active Directory database locally in the file system. This is just a single file, with some accompanying files for support. The
NTDS.DITfile is the real Active Directory database; it lives in the%systemroot%\NTDSfolder. If this file is compromised or corrupted, it can bring down the entire Active Directory. Ideally, the database for Active Directory should be located on a dedicated physical drive that does not include the system volume.- Storage of GPOs and logon scripts
The domain controllers are also responsible for the GPOs (both default and new) as well as the logon scripts. Both the ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.