PAM_NOLOGIN(8) | System Manager's Manual | PAM_NOLOGIN(8)

# NAME

`pam_nologin` —
NoLogin PAM module

# SYNOPSIS

[service-name] module-type control-flag pam_nologin [options]

# DESCRIPTION

The NoLogin authentication service module for PAM provides functionality for only one PAM category: authentication. In terms of the module-type parameter, this is the “`auth`” feature. It also provides a null function for session management.

## NoLogin Authentication Module

The NoLogin authentication component (`pam_sm_authenticate`()), always returns success for the superuser, and returns success for all other users if the file /etc/nologin does not exist. If /etc/nologin does exist, then its contents are echoed to non-superusers before failure is returned. If a "nologin" capability is specified in login.conf(5), then the file thus specified is used instead. This usually defaults to /etc/nologin.

The following options may be passed to the authentication module:

`debug`
  syslog(3) debugging information at `LOG_DEBUG` level.
`no_warn`
  suppress warning messages to the user. These messages include reasons why the user's authentication attempt was declined.

# SEE ALSO

syslog(3), login.conf(5), pam.conf(5), nologin(8), pam(8)

July 8, 2001 | NetBSD 9.0