Today (Saturday) We will make some minor tuning adjustments to MySQL.

You may experience 2 up to 10 seconds "glitch time" when we restart MySQL. We expect to make these adjustments around 1AM Eastern Daylight Saving Time (EDT) US.

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Linux 2.6 - man page for pam_timestamp (linux section 8)

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

pam_timestamp - Authenticate using cached successful authentication attempts
SYNOPSIS [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.
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).
The auth and session module types are provided.
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.
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.
auth sufficient verbose auth required session required session optional
/var/run/sudo/... timestamp files and directories
pam_timestamp_check(8), pam.conf(5), pam.d(5), pam(8)
pam_tally was written by Nalin Dahyabhai. Linux-PAM Manual 06/04/2011 PAM_TIMESTAMP(8)

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