authmgr(4gx)

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Name

authmgr — Demultiplexer for authentication requests

Description

authmgr is a component that, for mail account authentication, dynamically selects the authentication backend per user account.

Configuration directives

The usual config file location is /etc/gromox/authmgr.cfg.

auth_backend_selection
This controls how authmgr will verify passwords supplied with login operations. See the "Authentication modes" section below for details.
Available: deny_all, allow_all, ldap, pam
Default: ldap

Authentication modes

deny_all: every attempt at authentication is rejected. This is at best useful for testing.
allow_all: every attempt at authentication (provided the user exists) is permitted. This may be handy when doing the initial mass-import of mailboxes via external IMAP-to-IMAP synchronization utilities such as imapsync without needing to know user passwords.
ldap (old name: externid): authmgr will selectively pick LDAP/MySQL, depending on whether the externid column in the user database has a value or contains just the empty string. The particular value is ignored and only meaningful to the importer.
pam: authmgr will selectively pick PAM/MySQL. The PAM service name will be "gromox". Be sure that pam_gromox.so is not invoked as part of that PAM service stack, or it will lead to infinite recursion.

Signals

Upon receipt of SIGHUP, configuration files are re-read, but only a few select directives can be changed this way, as many parts do not implement reload.