Section: Linux-PAM Manual (8)
:pam_exec.so [debug] [expose_authtok] [seteuid] [quiet] [stdout] [log=file] [type=type] 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.
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
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