What is a disjointed namespace?

What is a disjointed namespace?

A disjoint namespace occurs when one or more domain member computers have a primary Domain Name Service (DNS) suffix that does not match the DNS name of the Active Directory domain of which the computers are members. In a contiguous namespace, the primary DNS suffix matches the Active Directory domain name.

What is contiguous namespace in Active Directory?

Contiguous namespace for example, refers to the concept that Domains in an Active Directory all share a common namespace. You create a disjointed name space as you add trees into your AD instance. Each tree has its own contiguous namespace. See example below that shows two trees in an Active Directory forest.

What is non contiguous namespace?

A discontiguous namespace, also referred to as non-contiguous namespace, is one in which the domains in a forest are not defined hierarchically. If the domains in a forest have discontiguous DNS names, they form separate domain trees within the forest. An Active Directory forest can have one or more domain trees.

What aspect of your DNS infrastructure must be handled manually in disjoint namespaces?

Disjoint namespaces require additional administration overhead because of the manual processes involved to manage the DNS and Active Directory information.

How do I name my Active Directory domain?

Active Directory Domain Naming Best Practices

  1. Option 1: Use a valid TLD (Top Level Domain, also known as routable domain) registered to your company.
  2. Option 2: Use a subdomain of a valid TLD that is registered to your company.
  3. Option 3: Use non-TLD name (or non-routable domain).

Does Active Directory use NetBIOS?

A computer running Windows in an Active Directory domain has both a DNS domain name and a NetBIOS domain name, as follows: For example, if the DNS domain name is contoso.com, the NetBIOS domain name is contoso. If the DNS domain name is corp.contoso.com, the NetBIOS domain name is corp.

What is a namespace directory?

In programming languages. For many programming languages, namespace is a context for their identifiers. In an operating system, an example of namespace is a directory. Each name in a directory uniquely identifies one file or subdirectory.

What do you call one or more trees with disjointed namespaces?

Explanation: A forest is made of one or more trees (although most people think of a forest as two or more trees). A forest varies from a tree because it uses disjointed namespaces between the trees.

How do I find my Active Directory NetBIOS name?


  1. Log into the Active Directory server.
  2. Navigate to Start > Programs > Active Directory Users and Computers.
  3. For the example below, paloaltonetworks. lab is the DNS domain name.
  4. Right-click the name, then select Properties.
  5. Under General, the Domain name displays the NetBIOS domain name.

How long can a PC name be?

15 characters
Windows doesn’t permit computer names that exceed 15 characters, and you can’t specify a DNS host name that differs from the NETBIOS host name.

When should I use a disjoint namespace?

A disjoint namespace should work (and is supported) in the following situations: When a forest with multiple Active Directory domains uses a single DNS namespace, which is also known as a DNS zone

What are the disjoint namespaces in exchange 2013?

Exchange 2013 and disjoint namespaces. Exchange 2013 supports the following three scenarios for deploying Exchange in a domain that has a disjoint namespace: Primary DNS suffix and DNS domain name are different: The primary DNS suffix of the domain controller isn’t the same as the DNS domain name.

What is a disjoint member computer in Active Directory?

Member computer is disjoint: A member computer in an Active Directory domain is disjoint, even though the domain controller is not disjoint.

Is the active directory namespace identical to the Primary DNS Suffix?

Network applications that are written to assume that the Active Directory namespace is identical to the primary DNS suffix for all domain member computers do not function properly in a disjoint namespace. Domain member computers, including domain controllers, can function in a disjoint namespace.

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