SSH and using the "`" Post: 302309106

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pam_timestamp

PAM_TIMESTAMP(8)						 Linux-PAM Manual						  PAM_TIMESTAMP(8)

NAME

       pam_timestamp - Authenticate using cached successful authentication attempts

SYNOPSIS

       pam_timestamp.so [timestamp_timeout=number] [verbose] [debug]

DESCRIPTION

       In a nutshell, pam_timestamp caches successful authentication attempts, and allows you to use a recent successful attempt as the basis for
       authentication. This is similar mechanism which is used in sudo.

       When an application opens a session using pam_timestamp, a timestamp file is created in the timestampdir directory for the user. When an
       application attempts to authenticate the user, a pam_timestamp will treat a sufficiently recent timestamp file as grounds for succeeding.

OPTIONS

       timestamp_timeout=number
	   How long should pam_timestamp treat timestamp as valid after their last modification date (in seconds). Default is 300 seconds.

       verbose
	   Attempt to inform the user when access is granted.

       debug
	   Turns on debugging messages sent to syslog(3).

MODULE TYPES PROVIDED

       The auth and session module types are provided.

RETURN VALUES

       PAM_AUTH_ERR
	   The module was not able to retrieve the user name or no valid timestamp file was found.

       PAM_SUCCESS
	   Everything was successful.

       PAM_SESSION_ERR
	   Timestamp file could not be created or updated.

NOTES

       Users can get confused when they are not always asked for passwords when running a given program. Some users reflexively begin typing
       information before noticing that it is not being asked for.

EXAMPLES

	   auth sufficient pam_timestamp.so verbose
	   auth required   pam_unix.so

	   session required pam_unix.so
	   session optional pam_timestamp.so

FILES

       /var/run/sudo/...
	   timestamp files and directories

SEE ALSO

       pam_timestamp_check(8), pam.conf(5), pam.d(5), pam(8)

AUTHOR

       pam_timestamp was written by Nalin Dahyabhai.

Linux-PAM Manual						    09/19/2013							  PAM_TIMESTAMP(8)