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Azure Microsoft

Azure Physical Infrastructure

Behind the scenes of Azure’s global reach are physical centres packed with computing power. Imagine giant warehouses filled with server racks – that’s essentially what Azure datacenters are. Just like any corporate data centre, they have their own dedicated power, cooling, and network systems to keep everything running smoothly. Unlike some data centres you might […]

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Azure Microsoft

What is Microsoft Azure?

Unleash innovation and tackle evolving business needs with Azure, Microsoft’s ever-growing cloud platform. Build and deploy applications on a vast global network, leveraging your preferred tools and frameworks for maximum flexibility. What does Azure offer? Ignite boundless innovation. Build groundbreaking apps and solutions with cutting-edge technology, tools, and services that propel your business forward. Unify […]

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Catalyst Centre Cisco SDA

An Authoritative Overview of Cisco SD-Access

In the contemporary landscape of digital transformation, where the demands for seamless connectivity and robust security are at an all-time high, one cannot overlook the pivotal role of sophisticated network solutions. Amongst these, Cisco SD-Access emerges as a paragon of innovation and quality, offering an unparalleled networking experience that meets the exigent needs of today’s […]

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802.1x Active Directory Cisco ISE

Enable Wired 802.1x – Group Policy

In my lab environment I have a ‘Lab Users’ OU that I will apply this group policy to. Open Group Policy Management and right click the ‘Lab Users’ Group, select ‘Create GPO in this domain, and Link it here…’. Give it a name, e.g. ‘802.1x Group Policy’, and then navigate to ‘Computer Configuration -> Policies […]

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802.1x Active Directory Cisco ISE

Cisco ISE Active Directory Certificate Template

This post will look at configuring a Windows Active Directory CA server with a certificate template for use with ISE that enables both ‘client authentication’, and ‘server authentication’ key usage. We have a simple network topology with a single ISE node, single Windows server, and a single Windows client machine. MMC Open the MMC, I […]

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ESP32 Python

ESP32, MicroPython, and controlling a relay

Now that we have an ESP32 connected to our network and running python, the next task is to connect a two switch relay and be able to control it. Eventually we will do this via MQTT, but for now a web server will be enabled on the board to allow manual control of the relay […]

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ESP32 Python

MicroPython connect to wireless network

In our previous post we uploaded a python script to the ESP32 to run on boot. This time we will connect the ESP32 to our wireless network. Firstly I am going to create a config.py file to store any configuration parameters we are going to use. In this case we simply have the SSID and […]

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ESP32 Python

ESP32 MicroPython run script on boot

In a previous post we flashed a W32-WROOM-32 with MicroPython and successfully got to an interactive python prompt via serial. Now we will create a simple python script and upload it to the ESP32 and have it run on boot. First, lets create a really simple python script -: import time print(‘Hello world! I can […]

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ESP32 Python

ESP32 and MicroPython

I have some ESP32 based boards lying around and stumbled across MicroPython, which appealed to me as I have some Python code I wanted to try and port to an ESP32 board. MicroPython supports ESP32 and any board should work, I am using an ESP32-WROOM-32. Download the firmware Download the latest version of the firmware […]