Jan 132016
 

If you’re a regular reader of my blog, you’ll know that I’ve set up a Motion daemon to monitor one of my IP Cameras.

Recently, I decided to also make a graph of the motion so that I easily track when motion was detected from my IP Camera. This was easily done with the Zabbix agent as I could send data straight into a Zabbix item with zabbix_sender.

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Nov 252015
 

I recently bought a Telstra Prepaid (ZTE MF823) 4G stick to use while I’m out and about. It works great for internet, getting a nice 20Mbits in some locations, but I’ve run into some issues with the IP addressing scheme of the stick’s network.
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Jun 222015
 

I had to build my own email sender script for Zabbix as I needed some mangling done on the subjects that was being sent out.
I used python to build it so that I could then use some regex to strip out the garbage that I needed stripped out.

First thing you need to do is to create the email script for Zabbix to run when it receives an alert.
The default location for these scripts is /usr/lib/zabbix/alertscripts/ but this can be customised from the Zabbix server configuration file.

This is the python script that I used, I named it emailalert.py, so the full path for this script should be /usr/lib/zabbix/alertscripts/emailalert.py.

In this example script, I’m only removing text <EMAIL> from any subjects that may have it. This is because some alerts that are being generated have an <EMAIL> tag to enable Zabbix to recognise that the alert needs to go through email, however the team receiving the alert doesn’t want the <EMAIL> tag on the subject line of the email they receive.

#!/usr/bin/python
import smtplib
import sys
import re

email = sys.argv[1]
subject = sys.argv[2]
body = sys.argv[3]

subject = re.sub('<EMAIL>',"",subject)

sender = "Zabbix <zabbix@example.com>"

message = """From: Zabbix <zabbix@example.com>
To: """+email+"""
Subject: """+subject+"""

"""+body+"""
"""

try:
smtpObj = smtplib.SMTP("smtpserver.example.com")
smtpObj.sendmail(sender,email,message)
print "Success"
except SMTPException:
print "Unable to send email"

Once the script has been created, you’ll need to add the script to the Media Types under Administration in Zabbix.
Create a new media type, and give it a name. I’ve called mine Email Script.
For the type, choose Script, and then for the Script Name, use the name that you’ve given the script. In my case, I’ve called it emailalert.py

My Media type configuration

My Media type configuration

Once this is done, you’ll need to set up email addresses for users that need emails through this new script by going to each user, and setting up a new media entry with the type being Email Script

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Jun 182015
 

I recently had to verify a whole bunch of servers were responding to SNMP and had the correct DNS reverse look ups in Active Directory.
I used this little script so that it would ask me for an IP address and then do a ping, and then if a server was reachable over ICMP, a nslookup if a server responded to the SNMP Query for the system name.
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