PDCShort for Primary Domain Controller, a server in a Windows NT network that maintains a read-write directory of user accounts and security information. The PDC authenticates usernames and passwords when members log into the network. Members only have to log into one domain to access all resources in the network.
In a trusted relationship, one domain may gain access to other domains. In this case, members who log into the first domain will have access to the resources in the other domains.
It is also a good idea to have at least one backup domain controller (BDC) in a domain.
Windows 2000 (W2K) approaches the domain controller concept a little differently. Unlike Windows NT, where a PDC must be accessible to make changes to the directory, W2K relies on Active Directory's multimaster replication model to update all domain controllers when only one is updated. There is no PDC or BDC. All domain controllers are equal.
Because nothing says "I Love You" Like an open source app. Read More »Guarding your Data against Cyber Attacks
In this new era of heightened stakes comes an increased need for a comprehensive security strategy. Let's take a look at how cyber-threats have... Read More »The Great Data Storage Debate: Is Tape Dead?
Tape clearly is on the decline. But remember, legacy systems can hang for a shockingly long time. Read More »
A network is a group of two or more computer systems or devices, linked together to share resources, exchange files and electronic communications.... Read More »Computer Architecture Study Guide
This Webopedia study guide describes the different parts of a computer system and their relations. Read More »Webopedia Polls
The trend for the past two years has been for shoppers to spend more online during the holiday season. How do you typically shop for holiday... Read More »
Stay up to date on the latest developments in Internet terminology with a free weekly newsletter from Webopedia. Join to subscribe now.
- Watch Datamation's editor James Maguire moderate roundtable discussions with tech experts from companies such as Accenture, Dell, Blue Jeans Network, Microsoft and more »