Useful Linux Monitoring Tools

If you still remember Mick Genie ever post on how to monitor RAM/Memory on Linux earlier from, you should have an idea on the basic command to monitor Linux server.

Today I would like to share some useful monitoring tools from Linux box. With Linux monitoring tools, it uses to analysis and debugging the Linux box.

1. Top Process
– Top process is the most used by the Linux user as it come with many useful information such as it’s server load, memory, iostat, etc.

With top command, it do comes with some hotkey.
t – Displays summary information off and on.
m –    Displays memory information off and on.
A –    Sorts the display by top consumers of various system resources. Useful for quick identification of performance-hungry tasks on a system.
f –    Enters an interactive configuration screen for top. Helpful for setting up top for a specific task.
o –    Enables you to interactively select the ordering within top.
r –    Issues renice command.
k –    Issues kill command.
z –    Turn on or off color/mono

2. ps
ps command used show the process list of your server.

ps -A
– To show all process list.

ps -Al
– Long Format list

ps -aux
– Print all process on the server

3. vmstat
– System information, hardware and software information would show by running from vmstat.

vmstat -m
– Display memory utilization

vmstat -a
– Display active/inactive memory information

4. w
– Show all information such as logged in user, server load, etc

5. free
– show the free, used physical memory and swap information.

6. sar
– Show the System activity

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Mick Genie

Mick Genie is the founder of and working at ExaBytes Network Sdn Bhd and WPWebHost web host company. He is expertise in Windows and Linux environment especially web hosting related information, tips and trick as well as the IT Information.

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