1PAM_EXEC(8)                    Linux-PAM Manual                    PAM_EXEC(8)
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NAME

6       pam_exec - PAM module which calls an external command
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SYNOPSIS

9       pam_exec.so [debug] [expose_authtok] [seteuid] [quiet] [log=file]
10                   command [...]
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DESCRIPTION

13       pam_exec is a PAM module that can be used to run an external command.
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15       The child´s environment is set to the current PAM environment list, as
16       returned by pam_getenvlist(3) In addition, the following PAM items are
17       exported as environment variables: PAM_RHOST, PAM_RUSER, PAM_SERVICE,
18       PAM_TTY, PAM_USER and PAM_TYPE, which contains one of the module types:
19       account, auth, password, open_session and close_session.
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OPTIONS

22       debug
23           Print debug information.
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25       expose_authtok
26           During authentication the calling command can read the password
27           from stdin(3).
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29       log=file
30           The output of the command is appended to file
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32       quiet
33           Per default pam_exec.so will echo the exit status of the external
34           command if it fails. Specifying this option will suppress the
35           message.
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37       seteuid
38           Per default pam_exec.so will execute the external command with the
39           real user ID of the calling process. Specifying this option means
40           the command is run with the effective user ID.
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MODULE TYPES PROVIDED

43       All module types (auth, account, password and session) are provided.
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RETURN VALUES

46       PAM_SUCCESS
47           The external command was run successfully.
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49       PAM_SERVICE_ERR
50           No argument or a wrong number of arguments were given.
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52       PAM_SYSTEM_ERR
53           A system error occurred or the command to execute failed.
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55       PAM_IGNORE
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57           pam_setcred was called, which does not execute the command.
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EXAMPLES

60       Add the following line to /etc/pam.d/passwd to rebuild the NIS database
61       after each local password change:
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63                   passwd optional pam_exec.so seteuid make -C /var/yp
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66       This will execute the command
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68           make -C /var/yp
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70       with effective user ID.
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SEE ALSO

73       pam.conf(5), pam.d(5), pam(8)
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AUTHOR

76       pam_exec was written by Thorsten Kukuk <kukuk@thkukuk.de>.
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80Linux-PAM Manual                  06/16/2009                       PAM_EXEC(8)
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