How Does Ddns Replace Wins in Windows 2000 and Later?

Windows Networking

POS/427

Week 2 Individual Assignment.

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How does DDNS replace WINS in Windows 2000 and later?

DDNS replaces WINS by allowing DNS clients to update information in the DNS database files. IP Addresses and DNS records stay in synch so that you can use DNS and DHCP together seamlessly. WINS listens to NBT broadcasts and can not update IP Address information if the DHCP lease expires since the NBT broadcasts registers the machines IP Address with the WINS Server at boot up. NetBIOS is not routable which further complicates things. WINS servers use NetBIOS names whereas DNS relies on hostnames.

Under what circumstances would we still use WINS?

WINS should be used whenever your network contains pre-Windows 2000 operating systems or you run NetBIOS dependent services on your network. Pre-Windows 2000 operating systems are dependent on NetBIOS for important domain related activities such as log on authentication and service location. WINS should also be considered as a means to improve resolution performance. You must be very cautious when deploying WINS Servers. Too many can create more problems than it is worth. WINS can help increase resolution speed because it is higher on the list for NetBIOS resolution. The resolution sequence is as follows:

NetBIOS Remote Name Cache

WINS

Broadcast

LMHOSTS

HOSTS

DNS

As you can see, DNS lookups are performed last, after other methods are employed.

What are the key differences between Windows 2000 and Windows 2003?

http://www.microsoft.com/windowsserver2003/evaluation/whyupgrade/top10w2k.mspx

Top 10 Reasons Why to Upgrade from Windows 2000 Server to Windows Server 2003 R2

Windows Server 2003 R2 builds upon the increased security, reliability, and performance provided by Windows Server 2003 Service Pack 1 (SP1) to provide a more secure and dependable platform on which to deliver business-critical applications and Web services. At the same time, Windows Server 2003 R2 is easier to manage and integrate into existing environments. This page describes the major new features and improvements included in Windows Server 2003 R2.

Centralize user authentication and authorization

Introduced in Windows 2000, the Active Directory directory service simplifies the administration of complex network directories and makes it easy to locate resources on even the largest networks. This enterprise-class service is scalable, is built on Internet-standard technologies, and integrates with the Standard, Enterprise, and Datacenter editions of Windows Server 2003 R2.

Windows Server 2003 R2 provides numerous ease-of-use improvements to Active Directory and new features, including cross-forest trusts, the ability to rename domains, and the ability to deactivate attributes and classes in the schema so that their definitions can be changed.

Simplify end user policy management

Administrators can use Group Policy to define the settings and allowed actions for your users and computers. In contrast with local policy, organizations can use Group Policy to set policies that apply across a given site, domain, or organizational unit in Active Directory. Policy-based management simplifies such tasks as system update operation, application installation, user profiles, and lockdown of desktops.

As an add-in component to Windows Server 2003, the Group Policy Management Console (GPMC) provides the new framework for managing Group Policy. With GPMC, Group Policy becomes much easier to use, a benefit that will enable more organizations to better utilize Active Directory and take advantage of its powerful management features.

Streamline access to external or security-enhanced domains

Use Active Directory Federation Services (ADFS) to streamline business-to-business (B2B) communications. ADFS extends the value of Active Directory deployments to facilitate collaboration with partners, resulting in increased user productivity, greater information technology (IT) efficiency, and improved security--and, thus, a greater return on investments made in software.