Test port from one host with agent to another without

[fabioctba]

Hello,

I need to run a test, where the HOST_1 must be able to connect at HOST_2 specific port, but i only have access to HOST_1, where there's a zabbix agent installed. If i were testing from the server to a monitored host, i could simply create an item with the key 'tcp,port'. But the server won't have access to that port on HOST_2, so i must test from HOST_1. Any ideas?

Regards,

Fabio

[Inc0]

You can use a bash script like the following one to check if the port is open or closed.

#!/bin/bash

HOSTIP='127.0.0.1'
PORT=21
TIMEOUT=30
if
  nc -zv -w$TIMEOUT $HOSTIP $PORT &>/dev/null
then
  echo 'Port is open'
else
  echo 'Port is closed'
fi

In zabbix_agentd.conf you can add a new user-defined minitored parameter that executes the script and then you check the result from zabbix in a trigger.

I suggest you to change the echo to 0/1 instead of "port is open" and "port is closed".

Moreover you can modify it to accept parameter so you can specifiry ip, port and timeout in the item instead of having those parameter inside the script.

[fabioctba]

Inc0 thanks for your answer, this solves the problem for linux hosts, i had tried with nc before and i've made a script similar to yours. But i forgot to mention that in my case both hosts are running Windows.

[Inc0]

nc for windows: http://www.hackosis.com/wp-content/u...12/nc111nt.zip

I have no idea if it works or not.

If you don't trust the link, I suggest you to find a script for windows that do the same

[wizard-ict]

On Windows you can use portqry, don't worry that it says Windows 2000, it runs fine on Windows 7, Server 2008 etc too.

http://support.microsoft.com/kb/310099

It doesn't require any install, so you can just drop it in your zabbix folder or whereever you want it, add a UserParameter to your agent config to call it and you're good to go.

[fabioctba]

I appreciate your self-confidence a lot.

i don't understand.

[fabioctba]

On Windows you can use portqry, don't worry that it says Windows 2000, it runs fine on Windows 7, Server 2008 etc too.

http://support.microsoft.com/kb/310099

It doesn't require any install, so you can just drop it in your zabbix folder or whereever you want it, add a UserParameter to your agent config to call it and you're good to go.

Thanks wizard-ict, i'm going to give it a try and then i'll post the results!