[Xymon] Perl client without xymon client. (OPEN)

[Jeremy Laidman]

On 9 August 2012 23:17, <oyvind.bjorge at telenor.com> wrote:

> Is there anyone that have made a perl module or subroutine for sending to
> a xymon-server without having to install the xymon client?
>

You could use xymon-rclient (on xymonton.org), where you only need an ssh
connection from the server to a shell running on the client; it
automagically sends the client-side script, and injects the results on the
server side.

Also, this shell one-liner works on Solaris under ksh, bash and bourne
shell (sh):

#!/bin/sh
( echo "$2"; sleep 1 ) | telnet $1 1984 2>&1 >/dev/null | grep -v "closed
by foreign host"

Run it like this:
  ./xymon.sh $XYMSRV "status `uname -n`.testname green All OK"

Alternatively, netcat (nc) can be used like so:

echo "$2" | nc -w1 $1 1984 || echo "Connection failure"

Neither of these are ideal, because there's no way to close the connection
on the client side once the message has been sent, and so it simply waits 1
second (-w1 for nc) and assumes it has all been sent.

This bash code doesn't have the same limitation.  It works on Linux and
should work on all UNIXes that run bash:

#!/bin/bash
exec 3<>/dev/tcp/$1/1984 || exit 1
echo "status `uname -n`.testing green `date` $2" >&3

Run it as above.

This script uses the /dev/tcp bash-ism, so it's not portable to other
shells.  If you needed to send multiple messages in a single script, you
should close the socket after each with "exec 3<>-".

J
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