Bobcat 300 is dead, long live Bobcat 300

Reviving Bobcat 300 Helium miners with a minimal Docker based Helium gateway stack

Security implications in the fast-paced expansion of national mobile network infrastructure

5G promises faster, more connected networks, but it also brings serious security challenges and geopolitical concerns, especially with key players like Huawei. We explore risks and strategies for securing 5G deployment.

VE.Direct Arduino Library

An Arduino library for reading VE.Direct serial text protocol data

Pushing Victron solar data over MQTT

Get detailed solar statistics from your victron setup! Publishes data from VE.direct over MQTT to home assistant with automatic discovery.

VyOS Policy Based Routing with WireGuard + Mullvad

Here is a quick guide to setting up policy based routes for VyOS or other Vyatta variants such as EdgeOS.

Yubikey for SSH

Here is a quick guide for using a yubikey on different platforms for SSH.

A discussion on covert DNS traffic

DNS is everywhere, but is it always being used for legitimate purposes? Did you know you can run a VPN over DNS for free WiFi?

VyOS Policy Based Routing with OpenVPN

Make a selection of hosts use a vpn connection

Strongswan on Odroid C2

Here is a quick guide for getting strongswan built for an odroid C2 running debian. With full crypto support such as eap-mschapv2 sudo su apt install -y libsystemd-dev pkg-config build-essential bzip2 lzip Install crypto deps cd /tmp mkdir /opt/gmp_src wget https://gmplib.org/download/gmp/gmp-6.1.2.

Heartbleed - An OpenSSL Heartbeat Vulnerability

Heartbleed was a major buffer-over-read vulnerability in the OpenSSL implementation of the Heartbeat extension in TLS that went unnoticed for several years.