zabbix_get and zabbix_agentd -t produce different results

[insertcoin]

Hi,

I have a script that tests to see if there is any process running on port 80 (this isn't apache)

On the server my script is as follows:

#!/bin/bash

if [ -z "$(lsof -i :80)" ]; then
  echo 0
else
  echo 1
fi

If I run this with the service that uses that port running it returns 1, if its stopped it returns 0.

Running this from the zabbix server gives a blank result:

root@zabbix:~# /usr/bin/zabbix_get -I{zabbix server} -s {target IP} -p 10050 -k test

root@zabbix:~#

I added another userparameter as follows:

UserParameter=test2,[[ -z "$(lsof -i :80)" ]] && echo 1 || echo 0

This produces the correct result on the server if run via bash, giving 1 if their is a process on that port and 0 if not.

Running it from the remote zabbix server I get:

root@zabbix:~# /usr/bin/zabbix_get -I{zabbix server} -s {target IP} -p 10050 -k test2
1
root@zabbix:~#

Not sure what I am missing, any advice?

[BDiE8VNy]

Why not using the native Zabbix agent item net.tcp.listen[port]?

[insertcoin]

Honestly I did try that first and it wasn't working....

But it does appear to be now, so all is ok.