PAM_DEBUG(8) Linux-PAM Manual PAM_DEBUG(8) (NAME) pam_debug - PAM PAM (SYNOPSIS) pam_debug.so [auth=value] [cred=value] [acct=value] [prechauthtok=value] [chauthtok=value] [auth=value] [open_session=value] [close_session=value] (DESCRIPTION) PAM pam_debug PAM . . (OPTIONS) auth=value pam_sm_authenticate(3) value . cred=value pam_sm_setcred(3) value . acct=value pam_sm_acct_mgmt(3) value . prechauthtok=value pam_sm_chauthtok(3) PAM_PRELIM_CHECK value . chauthtok=value pam_sm_chauthtok(3) PAM_PRELIM_CHECK value . open_session=value pam_sm_open_session(3) value . close_session=value pam_sm_close_session(3) value . value : success, open_err, symbol_err, service_err, system_err, buf_err, perm_denied, auth_err, cred_insufficient, authinfo_unavail, user_unknown, maxtries, new_authtok_reqd, acct_expired, session_err, cred_unavail, cred_expired, cred_err, no_module_data, conv_err, authtok_err, authtok_recover_err, authtok_lock_busy, authtok_disable_aging, try_again, ignore, abort, authtok_expired, module_unknown, bad_item, conv_again, incomplete. (MODULE TYPES PROVIDED) (auth account password session) . (RETURN VALUES) PAM_SUCCESS . (EXAMPLES) auth requisite pam_permit.so auth [success=2 default=ok] pam_debug.so auth=perm_denied cred=success auth [default=reset] pam_debug.so auth=success cred=perm_denied auth [success=done default=die] pam_debug.so auth optional pam_debug.so auth=perm_denied cred=perm_denied auth sufficient pam_debug.so auth=success cred=success (SEE ALSO) pam.conf(5), pam.d(5), pam(8) (AUTHOR) pam_debug Andrew G. Morgan . Linux-PAM 01/26/2026 PAM_DEBUG(8)