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pam_exec — PAM module which calls an external command
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DESCRIPTION
pam_exec is a PAM module that can be used to run an external command.
The child's environment is set to the current PAM environment list, as returned
by pam_getenvlist(3) In addition, the following PAM items are exported as
environment variables: PAM_RHOST, PAM_RUSER, PAM_SERVICE, PAM_TTY, PAM_USER and
PAM_TYPE, which contains one of the module types: account, auth, password,
open_session and close_session.
Commands called by pam_exec need to be aware of that the user can have controll
over the environment.
OPTIONS
debug
Print debug information.
expose_authtok
During authentication the calling command can read the password from stdin
(3).
log=file
The output of the command is appended to file
quiet
Per default pam_exec.so will echo the exit status of the external command
if it fails. Specifying this option will suppress the message.
seteuid
Per default pam_exec.so will execute the external command with the real
user ID of the calling process. Specifying this option means the command is
run with the effective user ID.
EXAMPLES
Add the following line to /etc/pam.d/passwd to rebuild the NIS database after
each local password change:
password optional pam_exec.so seteuid /usr/bin/make -C /var/yp
This will execute the command
make -C /var/yp
with effective user ID.
AUTHOR
pam_exec was written by Thorsten Kukuk <kukuk@thkukuk.de>.
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