Custom Arp Alerts II!

So I’ve found a better way to do what I did in the previous post. Instead of running a separate script to parse the arp alert logs, I have arp alert itself send the alerts! The key is this line in the arpalert.conf

action on detect = "/etc/scripts/arp-alert"

Its so simple, it just runs that script sending the information about the alert as certain arguments. With this I have more control over the formatting of arpalert messages:

In order to do this, I had to write that script, and make it executable of course. Also I had to change the running user of arpalert to root, because the “arpalert” user didn’t have permission to notify my user “kyle”. This is a much more clean solution, allowing me to make different types of alerts look different, having different timeouts and such. If you want my /etc/scripts/arp-alert you can download what I have so far here.

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