Section: Linux-PAM Manual (8)
:pam_timestamp.so [timestamp_timeout=number] [verbose] [debug]
- 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.
- How long should pam_timestamp treat timestamp as valid after their last modification date (in seconds). Default is 300 seconds.
- Attempt to inform the user when access is granted.
MODULE TYPES PROVIDED
- The module was not able to retrieve the user name or no valid timestamp file was found.
- Everything was successful.
- Timestamp file could not be created or updated.
auth sufficient pam_timestamp.so verbose auth required pam_unix.so session required pam_unix.so session optional pam_timestamp.so
- timestamp files and directories
pam_timestamp was written by Nalin Dahyabhai.