pam_succeed_if.so [flag...] [condition...]
pam_succeed_if.so is designed to succeed or fail authentication based
on characteristics of the account belonging to the user being
authenticated or values of other PAM items. One use is to select
whether to load other modules based on this test.
The module should be given one or more conditions as module arguments,
and authentication will succeed only if all of the conditions are met.
The following flags are supported:
Turns on debugging messages sent to syslog.
Evaluate conditions using the account of the user whose UID the
application is running under instead of the user being
Don't log failure or success to the system log.
Don't log failure to the system log.
Don't log success to the system log.
Log unknown users to the system log.
Conditions are three words: a field, a test, and a value to test for.
Available fields are user, uid, gid, shell, home, ruser, rhost, tty and
field < number
Field has a value numerically less than number.
field <= number
Field has a value numerically less than or equal to number.
field eq number
Field has a value numerically equal to number.
field >= number
Field has a value numerically greater than or equal to number.
field > number
Field matches the given glob.
field !~ glob
Field does not match the given glob.
field in item:item:...
Field is contained in the list of items separated by colons.
field notin item:item:...
Field is not contained in the list of items separated by colons.
user ingroup group
User is in given group.
user notingroup group
User is not in given group.
user innetgr netgroup
(user,host) is in given netgroup.
user notinnetgr group
(user,host) is not in given netgroup.
MODULE TYPES PROVIDED
All module types (account, auth, password and session) are provided.
The condition was true.
The condition was false.
A service error occurred or the arguments can't be parsed
To emulate the behaviour of pam_wheel, except there is no fallback to
auth required pam_succeed_if.so quiet user ingroup wheel
Given that the type matches, only loads the othermodule rule if the UID
is over 500. Adjust the number after default to skip several rules.
type [default=1 success=ignore] pam_succeed_if.so quiet uid > 500
type required othermodule.so arguments...
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