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Linux Indore - Linux Users Group

Linux Tips...
 
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Linux Tips...
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Linux Server....
Created:
Monday, 16 November 2009
Creator:
Ajay Songare
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SKINNY ELEPHANTS
Monday, 21 December 2009 by Ajay Songare


SKINNY ELEPHANTS
( Or: If All Else Fails )

In addition to the PID story in Run-Away Processes If all is blocked and even Ctrl+Alt+backspace ( what should be a last resort ) does not react, if your system does not react on any action ( like I said before, very rare in Linux ) remember the next line:

Raising Skinny Elephants Is Utterly Boring

Here is how you "raise the elephant":

Alt+SysRq+r  ( The LEFT Alt key ) ( SysRq is on the same button as print screen )
Alt+SysRq+s
Alt+SysRq+e
Alt+SysRq+i
Alt+SysRq+u
Alt+SysRq+b

Give a little time between keystrokes.

The r stands for put keyboard in raw mode
The s for sync the disk
The e for terminate all processes
The i for kill all processes
The u for remount all filesystems read only
The b for reboot the system


THIS IS THE VERY LAST SAVE YOUR BUTT PROCEDURE ! ONLY IF ALL ELSE FAILS !

 

Password Aging
Monday, 30 November 2009 by Ajay Songare
System information
Tuesday, 24 November 2009 by Ajay Songare
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Ajay Songare, 2009-11-23 17:13:18
Ajay Songare
vmstat - System Activity, Hardware and System Information The command vmstat reports information about processes, memory, paging, block IO, traps, and cpu activity. # vmstat 3 Sample Outputs: procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------ r b swpd free buff cache si so bi bo in cs us sy id wa st 0 0 0 2540988 522188 5130400 0 0 2 32 4 2 4 1 96 0 0 1 0 0 2540988 522188 5130400 0 0 0 720 1199 665 1 0 99 0 0 0 0 0 2540956 522188 5130400 0 0 0 0 1151 1569 4 1 95 0 0 0 0 0 2540956 522188 5130500 0 0 0 6 1117 439 1 0 99 0 0 0 0 0 2540940 522188 5130512 0 0 0 536 1189 932 1 0 98 0 0 0 0 0 2538444 522188 5130588 0 0 0 0 1187 1417 4 1 96 0 0 0 0 0 2490060 522188 5130640 0 0 0 18 1253 1123 5 1 94 0 0 Display Memory Utilization Slabinfo # vmstat -m Get Information About Active / Inactive Memory Pages # vmstat -a
 

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