table of contents
PAM_EXEC(8) | Linux-PAM Manual | PAM_EXEC(8) |
NAME¶
pam_exec - PAM module which calls an external commandSYNOPSIS¶
pam_exec.so
[debug] [expose_authtok] [seteuid] [quiet] [log= file] command
[...]
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¶
debugPrint 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.
MODULE TYPES PROVIDED¶
All module types ( auth, account, password and session) are provided.RETURN VALUES¶
PAM_SUCCESSThe external command was run
successfully.
PAM_SERVICE_ERR
No argument or a wrong number of arguments
were given.
PAM_SYSTEM_ERR
A system error occurred or the command to
execute failed.
PAM_IGNORE
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
make -C /var/yp
SEE ALSO¶
AUTHOR¶
pam_exec was written by Thorsten Kukuk <kukuk@thkukuk.de>.06/04/2011 | Linux-PAM Manual |