Mikrotik Voltage Alarm/Beeper

I recently needed to make my routerboard generate an audible alarm based on voltage thresholds on the 12v battery wired directly to the RB2011. This script was a modification of something i found when perusing the Mikrotik forums.Change lowvoltage and highvoltage to...

ZESA Tarrif Calculator

Recently saw an article in the herald about the new tiered tarrif structure for Kwh/units. Here is a calculator to help you estimate your monthly budget with the new structure. (Distributed under GPLv3 – feel free to do what you like with it)...

Docker | Asterisk 16

While working on another project, (Callcenter suite) – i built a relatively lightweight Asterisk 16 image which was being used as the base image for a series of ARI tests. I decided to release this to the open-source community, to try and motivate more people to...

Sophos XG – Irremovable Interfaces!

Occasionally, I’ve found interfaces on the Sophos XG firewall that won’t or can’t be removed. (Sometimes the name shows blank, with nothing in it) DISCLAIMER – THE STEPS BELOW WILL LIKELY VOID YOUR WARRANTY. USE AT YOUR OWN DISCRETION. #1 – SSH into the appliance with...

Sophos – Captive Portal Excess Traffic Over WAN

I have noticed that Sophos 16 seems to have a problem with the way it’s captive portal works. If enabled (firewall policy set to drop), it seems to generate excessive amounts of traffic over my links to the remote branches. Screenshot below shows the traffic when...