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Overview of Host Name Aliases

You can control which IDs can be used with which hosts by assigning a host name alias to each ID and specifying which host IP addresses or domain names are associated with that alias.

Note Smart Connectors and e-Vantage Gateway connections do not support the use of host name aliases.

In addition, if you use a host name alias with a particular ID, you can connect to the host IP addresses or domain names associated with that alias only with other IDs that use that same host name alias.

For example, with UTS sessions, users can connect to multiple hosts from a single session by issuing a $$OPEN command to access a different environment. By assigning aliases to IDs, you can create a single configuration that provides access to multiple environments and multiple hosts, and a single address pool with all of the IDs used by all of the hosts, but still control which IDs are used to access which hosts.

A single UTS confugration and address pool using different IDs for sessions based on the environment specified by the $$OPEN command

For other types of sessions, you must create a separate configuration for each host that you want to access. However, you could still create a single address pool with all of the IDs used by all of the hosts, and assign aliases to the IDs to ensure that particular IDs were only used with particular hosts.

You can also use this feature to ensure that an ID is used only once with a particular host, even if the host has multiple network interface cards (and therefore multiple IP addresses). For example, a UTS session might be configured with three environments, and each environment might connect to the same host via a different IP address. If the IDs in ID Manager are restricted for use with those environments (as opposed to being available for any application), the same ID could potentially be assigned to three separate sessions, each accessing a different environment. However, since all three sessions would be with the same host, connection errors would occur. To prevent this, you can assign an alias to each ID, and specify multiple IP addresses for that host name. This ensures that the ID is used only once for that host, no matter what IP address is specified in the connections used by the environments.

Different IDs being used to access the same host

Related Topics
Bullet Overview of ID Manager
Bullet Overview of IDs
Bullet Assigning IDs to Names
Bullet Creating, Editing, or Deleting a Host Name Alias
Bullet Editing ID Properties