01-20-2014
What processes are eating up CPU?
How much net traffic is there? Are packets being dropped or retried?
You have one active task and 217 sleeping tasks? What are they waiting for?
Do you have zombies filling up your process table?
If this is a Big data server, how do the disk queues look? Are you getting I/O errors?
Is anything else going on every 3-4 days? Does it happen at the same time-of-day? Do you immediately reboot when it starts to get slow? Once it starts getting slow, does it stay consistently slow? Does it get increasingly slower?
Are other VMs on this machine seeing any increased activity or slower response times too?
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LEARN ABOUT DEBIAN
lchage
lchage(8) System Manager's Manual lchage(8)
NAME
lchage - Display or change user password policy
SYNOPSIS
lchage [OPTION]... user
DESCRIPTION
Displays or allows changing password policy of user.
OPTIONS
-d, --date=days
Set the date of last password change to days after Jan 1 1970.
-E, --expire=days
Set the account expiration date to days after Jan 1 1970. Set days to -1 to disable account expiration.
-i, --interactive
Ask all questions when connecting to the user database, even if default answers are set up in libuser configuration.
-I, --inactive=days
Disable the account after days after password expires (after the user user is required to change the password).
-l, --list
Only list current user's policy and make no changes.
-m, --mindays=days
Require at least days days between password changes. Set days to 0 to disable this checking.
-M, --maxdays=days
Require changing the password after days since last password change. Set days to 99999 to disable this checking.
-W, --warndays=days
Start warning the user days before password expires (before the user is required to change the password).
EXIT STATUS
The exit status is 0 on success, nonzero on error.
libuser Jan 12 2005 lchage(8)