Dedicated Server Uptime.
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As a server administrator your main role is to keep your server up and live round the clock so that your website will never go down for any reason. Following commands are frequently used by most webmasters :-
Uptime : Uptime is most widely used command for checking load on your dedicated server. The uptime command will display the current time, uptime from when your server was last booted, number of user sessions and load averages.
The average load is the number of processes which were active from past one minute, five minutes and, fifteen minutes.
root@server [/]# uptime
13:22:16 up 97 days, 14:02, 1 user, load average: 0.00, 0.01, 0.00
The information you get by using “uptime” command is the same as what you get in the first line of output by the “w” command. The widely used command to check load is the “top” command. The “top” command will display the load as well as CPU time with the memory usage. It will give you the list of processes; you can also check the memory usage by hitting the “m” in the middle. If you want to kill a particular PID you can hit “k” and type the PID and hit enter. This will kill that particular PID, hence you can make your server to give you optimal performance.
