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        Functions Of NetLogon Service On Domain Controllers

Section(s): Active Directory , Active Directory , Active Directory
Published on Dec 22, 2010.
Last Modified on Oct 31, 2009.
Last Modified by Nirmal Sharma.
Rated 3 out of 5 based on 2 votes.

This article explains the functions of NetLogon Service on domain controllers.

NetLogon Service is very important for Domain Controllers. This service is started and configured to start Automatic when you promote a server to Domain Controller. If this service is not running then there are a few things which fail. This article explains the functionality of NetLogon service on Domain Controllers as mentioned below:

This service is responsible for creating Secure Channel between Domain Controllers and client computers. Secure Channel is created to pass the authentication packets.
Service performs the registration of SRV records, CNAME and other DC records in the DNS Server to advertise the availability of Domain Controllers in the domain.
SRV Records registered by NetLogon Service are stored in C:\Windows\System32\Config\NetLogon.DNS File.
Performs registration of SRV Records every 24 hours depending on the version of Operating System in use.
Registers the SRV Records for a site where there is no Domain Controller. This is called Site Coverege.

About Nirmal Sharma

Nirmal is a Microsoft MVP in Directory Services and working as a Technical Architect/Consultant. He has been involved in Microsoft Technologies since 1994 and followed the progression of Microsoft Operating Systems and software. He is specialized in Directory Services, Microsoft Clustering, SQL, MOM, Exchange and Citrix. In his spare time, he likes to help others and write "internal" technical articles, white papers and tips on various Microsoft technologies. You can contact him at nirmal_sharma@mvps.org.