Domain

[Attributes and Console Screen Reference for Domains]

A domain is an inter-related set of WebLogic Server resources that are managed as a unit. A domain includes one or more WebLogic Servers, and may include one or more WebLogic Server clusters.

A domain is a self-contained administrative unit. If an application is deployed in a domain, components of that application cannot be deployed on servers that are not a part of that domain. When a cluster is configured in a domain, all of its servers must be a part of that domain as well.

For each domain, you can configure a subset of Weblogic Server resources that apply to all servers and clusters that reside in the domain. These attributes are configured in the Domain node of the Administration Console.

 

Enabling the Domain-Wide Administration Port

WebLogic Server provides the option to enable an SSL administration port for use with all servers in the domain. The administration port is optional, but it provides two capabilities:

  • It enables you to start a server in STANDBY state.
  • It enables you to separate administration traffic from application traffic in your domain.

To enable the administration port for your domain:

  1. Verify that all servers in the domain are properly configured to use SSL.

  2. In the admin console, click through:

    DomainName | Configuration tab | General tab | Enable Domain Wide Administration Port

  3. In the Administration Port box, enter an SSL port number. To override an individual server instance's administration port assignment go to:

    Configuration tab | General tab | Advanced Options

  4. Click Apply to apply your changes.

  5. Restart all server instances in the domain, including the Administration Server and all Managed Servers. The Administration Port will not function until all server instances in the domain are restarted.

  6. To start Managed Servers after enabling the administration port, establish an SSL connection to the domain's Administration Server. You can do this by specifying the following option at the command line when started the Managed Server: 

    -Dweblogic.management.server=https://host:admin_port

    In this argument, host refers to the address of the Administration Server and admin_port is the administration port that the Administration Server uses. Note that specify the https:// prefix, rather than http://.