pam_stress 8 Linux-PAM Manual pam_stress The stress-testing PAM module pam_stress.so debug no_warn use_first_pass try_first_pass rootok expired fail_1 fail_2 prelim required The pam_stress PAM module is mainly intended to give the impression of failing as a fully functioning module might. debug Put lots of information in syslog. *NOTE* this option writes passwords to syslog, so don't use anything sensitive when testing. no_warn Do not give warnings about things (otherwise warnings are issued via the conversation function) use_first_pass Do not prompt for a password, for pam_sm_authentication function just use item PAM_AUTHTOK. try_first_pass Do not prompt for a password unless there has been no previous authentication token (item PAM_AUTHTOK is NULL) rootok This is intended for the pam_sm_chauthtok function and it instructs this function to permit root to change the user's password without entering the old password. expired An argument intended for the account and chauthtok module parts. It instructs the module to act as if the user's password has expired fail_1 This instructs the module to make its first function fail. fail_2 This instructs the module to make its second function (if there is one) fail. prelim For pam_sm_chauthtok, means fail on PAM_PRELIM_CHECK. required For pam_sm_chauthtok, means fail if the user hasn't already been authenticated by this module. (See stress_new_pwd data string in the NOTES.) All module types (auth, account, password and session) are provided. PAM_BUF_ERR Memory buffer error. PAM_PERM_DENIED Permission denied. PAM_AUTH_ERR Access to the system was denied. PAM_CONV_ERR Conversation failure. PAM_SUCCESS The function passes all checks. PAM_USER_UNKNOWN The user is not known to the system. PAM_CRED_ERR Failure involving user credentials. PAM_NEW_AUTHTOK_REQD Authentication token is no longer valid; new one required. PAM_SESSION_ERR Session failure. PAM_TRY_AGAIN Failed preliminary check by service. PAM_AUTHTOK_LOCK_BUSY Authentication token lock busy. PAM_AUTHTOK_ERR Authentication token manipulation error. PAM_SYSTEM_ERR System error. This module uses the stress_new_pwd data string which tells pam_sm_chauthtok that pam_sm_acct_mgmt says we need a new password. The only possible value for this data string is 'yes'. #%PAM-1.0 # # Any of the following will suffice account required pam_stress.so auth required pam_stress.so password required pam_stress.so session required pam_stress.so pam.conf5 , pam.d5 , pam8 . The pam_stress PAM module was developed by Andrew Morgan <morgan@linux.kernel.org>. The man page for pam_stress was written by Lucas Ramage <ramage.lucas@protonmail.com>.