# Host

The host name or IP address of the child server that the Distributed Action Handler communicates with.

In non-mirror mode, you can also specify a comma-separated list of host names of mirrored child servers to create a child server group.

NOTE: If you are using VDBs, you cannot also use server groups.

IMPORTANT: If you set GSSServiceName, and set ACIEncryption to `False`, you must set `Host` to a fully qualified domain name (that is, you cannot use `localhost`, an IP address, or a host without the domain name, even if these values resolve to the correct server). Distributed Action Handler retrieves the Kerberos realm from the child server host name.

When you use ACI encryption in a Kerberos set up (that is, when you set ACIEncryption to `True`), you can specify the Kerberos realm by using the Krb5Realm parameter.

Type: | String
Default: |
Required: | Yes
Configuration Section: | IDOLServer`N` or DistributedEngine`N` or DAHEngine`N`
Example: | `Host=testserver1`
See Also: | Port Weight

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