[Xymon] Demotool

Japheth Cleaver cleaver at terabithia.org
Mon Nov 16 19:45:35 CET 2015

On 11/16/2015 10:29 AM, David Welker wrote:
> I am interested in using this to create a testbed.  From what I can 
> tell, it only sends a message that contains the [date], [uptime], and 
> [free] sections of the clientlog to the server, so how are the rest of 
> the columns created, by the xymond daemon?
> Is there any simple way to add ones own columns to this structure and 
> have them show up on the server?
> Thanks,
> David

Hi David,

In a normal, server-configured, installation, most of the columns 
representing client-pushed data like that are generated by the 
xymond_client daemon running on the server. It receives the clientlog 
and generates status messages which show up as columns.

You can add sections in, but something needs to be "listening" to know 
how to interpret that data, decide what color the resulting column is, 
and send the status message in to xymon.

In client-configured ("local config") mode, the same thing is basically 
happening, except that xymond_client is running on the client machines 
themselves, and the raw data isn't transmitted up.

To add raw data to the clientlog, you can edit the xymonclient-${OS}.sh 
script yourself, or (depending on whether it's packaged or from source), 
create a ~/local/ directory containing small executables that print out 
whatever data you'd like to include.

Alternatively, if you can just create the status message yourself on the 
client too. Sending details via the client message isn't a strict 

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