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In this post, you will learn how to configure DHCP to dynamically collaborate with DNS and WINS in Windows Server 2008.Under Windows NT, DNS was static and had to be manually altered to make changes.If there are missing entries, you likely have your DHCP missing one of two settings: This is required if you have DHCP installed on a Domain Controller.It is an issue on Server 2000, 2003, 2008, 2008R2, Server 2012, Server 2012 R2 and will likely be an issue in the newer builds.When configuring DDNS, you can Pause the DNS service and change the zone type, as shown in Figure B and Figure C.If you select Active Directory-Integrated, you can choose Secure only from the Dynamic Updates drop-down list.For example, a client machine receives an IP address from DHCP and then DHCP automatically (as long as it is configured to support DDNS) passes along the host information for that machine to the DNS service.This feature alone can save an administrator a lot of valuable time.

For those companies upgrading to Windows Server 2008, it is very important to understand how DHCP and DNS work together to power Windows Server 2008.If you are working with, well almost anything network intensive these days, like Antivirus or management tools, your Reverse DNS (r DNS) lookups need to be in good shape.If you find that you can not resolve IP’s back to a name on your network check your DNS REVERSE LOOKUP ZONE.For both the forward and reverse zones you have the allow-update statement commented out. Also, if you have SELinux enabled it will not allow writes to the zone files in /var/named/, regardless of the file permissions.It will not work without this because updates are disallowed by default. Moving those zone files to update to /var/named/dynamic/ (and update the file specifier in named.conf) overcomes that problem.

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