PMDF System Manager's Guide

The next step is to create a directory channel option file. The name of the option file is x_option where x is the name of the channel, hence usually directory_option, and the file should be placed in the PMDF table directory.

At a minimum, this file is used to tell the directory channel how to handle each pseudo domain it services. There should be at least one entry for each pseudo domain. These entries have the form:

domain=service-type

Here domain is the name of the pseudo domain in question and service-type is an integer indicating what sort of database is used to translate addresses in the pseudo domain:

Service type	Description
0	Use a PMDF CRDB or pmdf crdb database
2	Use an LDAP or X.500 directory database
3	Perform ALL-IN-1 list expansion operations
4	Use a CCSO/qi/ph directory database

The default for a pseudo domain if no option is specified is normally 0, a look up in a database created with PMDF CRDB (OpenVMS) or pmdf crdb (UNIX or NT). However, the option DEFAULT_METHOD may be used to change this default, as described below:

DEFAULT_METHOD (integer)

DEFAULT_METHOD may be set to any of the supported service types to select that service type as the default for pseudo domains which do not have an explicit setting. The default is DEFAULT_METHOD=0, meaning to use PMDF CRDB or pmdf crdb databases.

Continuing the previous example from Section 3.2.1, a sample directory channel option file might read:

example.com=0 a1.example.com=3

Note that additional transformation-specific options may be required in the directory channel option file. These options are described in the sections below.