PMDF System Manager's Guide

Normally, look ups using the directory channel are queued to the directory channel itself and processed by the directory channel master program. When the channel keyword inline is specified on the directory channel, then look ups are done immediately, similar to the way look ups are done to the alias database. For example:

directory inline DIRECTORY-DAEMON

Using inline directory lookups can help performance. Only local databases and LDAP look ups are supported in inline mode. Other directory sources are always queued to the directory channel.

A related option in the directory channel option file (see below) is INLINE_AMBIGUOUS, as described below:

INLINE_AMBIGUOUS (0 or 1)

If INLINE_AMBIGUOUS is set to 0, then the request is requeued to the directory channel so that the list of possible valid usernames can be sent back in a non-delivery notification. By default, ambiguous usernames are rejected immediately (INLINE_AMBIGUOUS=1).

The setting of INLINE_AMBIGUOUS does not affect the processing of invalid usernames or single valid usernames while in inline mode. Invalid names are rejected immediately, and valid single names are accepted immediately regardless.