Man page - unix_chkpwd(8)

Packages contains this manual

Package: libpam-runtime
apt-get install libpam-runtime

Manuals in package:

pam_wheel(8)
sepermit.conf(5)
pwhistory_helper(8)
pam_selinux(8)
pam_mkhomedir(8)
pam_xauth(8)
time.conf(5)
pam_permit(8)
pam_filter(8)
pam_canonicalize_user(8)
pam_usertype(8)
pam_rhosts(8)
pam_faildelay(8)
unix_chkpwd(8)
pwhistory.conf(5)
pam_localuser(8)
pam_mail(8)
pam_deny(8)
pam_keyinit(8)
pam_userdb(8)
pam_limits(8)
pam_group(8)
pam_rootok(8)
pam_time(8)
pam_sepermit(8)
pam_access(8)
pam_listfile(8)
pam_warn(8)
access.conf(5)
pam_nologin(8)
pam_tty_audit(8)
pam_stress(8)
pam_echo(8)
pam_pwhistory(8)
pam_ftp(8)
pam_debug(8)
environment(5)
faillock(8)
pam.d(5)
pam_exec(8)
pam_securetty(8)
pam_faillock(8)
pam_env(8)
pam_timestamp_check(8)
group.conf(5)
pam_env.conf(5)
pam_motd(8)
mkhomedir_helper(8)
pam_setquota(8)
unix_update(8)
pam.conf(5)
pam_issue(8)
pam_namespace(8)
pam_shells(8)
pam_umask(8)
pam_unix(8)
pam(7)
namespace.conf(5)
pam_timestamp(8)
faillock.conf(5)
pam_getenv(8)
pam-auth-update(8)
pam_succeed_if(8)
pam_namespace_helper(8)
limits.conf(5)
pam_loginuid(8)

Documentations in package:

libpam-runtime

Manual

UNIX_CHKPWD

NAME
SYNOPSIS
DESCRIPTION
SEE ALSO
AUTHOR

NAME

unix_chkpwd - Helper binary that verifies the password of the current user

SYNOPSIS

unix_chkpwd [...]

DESCRIPTION

unix_chkpwd is a helper program for the pam_unix module that verifies the password of the current user. It also checks password and account expiration dates in shadow . It is not intended to be run directly from the command line and logs a security violation if done so.

It is typically installed setuid root or setgid shadow.

The interface of the helper - command line options, and input/output data format are internal to the pam_unix module and it should not be called directly from applications.

AUTHOR

Written by Andrew Morgan and other various people.