In my quest of pulling things apart and building useless projects, I have been playing around with a RTL Spectrum analyzer / software defined radios, ADS-B signals and antennas. It all started with trying to replicate my garage door opener by reverse engineering the 433Mhz RF signals and ended up with me tracking ADS-B signals…Continue reading Designing a pan\ tilt camera tracking system using ADS-B 1090MHz signals
Adding a motor and MQTT remote control to a sit stand desk
As a first project into micro controllers, I looked at converting a manual sit stand desk into one powered by a motor, controlled over WiFi MQTT commands. The what The parts The how To Do Github code The original desk had no electronics and could only manually be “wound” up and down with a handle.…Continue reading Adding a motor and MQTT remote control to a sit stand desk
Remote packet capture of pfSense LAN\Wifi traffic to Wireshark
Expanding on my homelab project and working towards OSCP certification, I have been looking at building another network at home for pen testing. Part of that I recently purchased and added a managed L2 switch. Part of the feature set is port mirroring, but I also wanted to see if i capture the packets on…Continue reading Remote packet capture of pfSense LAN\Wifi traffic to Wireshark
Forcing Hassio to use custom pfsense DNS servers
To get all devices on my network to use my own DNS server Ive setup pfsense as a DNS resolver and set it to advertise itself. The problem is some docker images like Home assistant and Hassio are set to use their own DNS servers. 2 fixes, one is through hassio. Go to the Hass.io…Continue reading Forcing Hassio to use custom pfsense DNS servers
Getting NTP working on debian 10
Ive recently started working on a homelab to help with my OCSP certification. As part of that ive been building an esxi box, a pfsense box and a bunch of VMs. Heres how to get NTP working. If you run systemctl status systemd-timesyncd that will give you youre current status. On a fresh install As…Continue reading Getting NTP working on debian 10
ESP01 bricked – Solid red and blue LED
I have been playing around with the Esp01 to build some battery powered IOT devices. As with most playing that involves hardware, I bricked it. So here’s how to unbrick it… I have the 4/1 mbit and after flashing espeasy and tasmota to test somethings the red and blue led stayed on with the serial…Continue reading ESP01 bricked – Solid red and blue LED
Suppressing UFW log messages in Debian 9 syslog
Recently had an issue in Debian where syslog was filled with unwanted info from UFW. Found that the file /etc/rsyslog.d/20-ufw.conf has # & ~ at the bottom of the file, remove the # in front of it to uncomment it and refresh rsyslog with the command /etc/init.d/rsyslog restart. Once that is done that should activate…Continue reading Suppressing UFW log messages in Debian 9 syslog
Wifi, battery powered, USB rechargeable Fortnite lithograph
Now isn’t that a mouthful… My nephew like all other teens, is into Fortnite. He also discovered RGB LEDs…. So, I thought I’d upgrade his AliExpress 5/10m RGB strip to a Wi-Fi enabled, 16 million colour, battery powered, USB rechargeable Fortnite lithographed 3d printed lamp! All in all, it was a pretty easy project, but…Continue reading Wifi, battery powered, USB rechargeable Fortnite lithograph
Debian fail2ban iptables errors
I was getting a strange error in Debian after configuring fail2ban. Mainly around the error | grep -q ‘f2b-postfix-sasl[ \t]’ — stdout: b’. While there was a bunch of errors and warning around it, it was a pretty easy fix. Within the SASL rules in fail2ban, having imap3 in the port sectionw as causing the…Continue reading Debian fail2ban iptables errors
Webmin postfix SASL failure
The weirdest errors are those on a fresh system . The type where you expect for everything to just work with the default configs but just my luck, a new installs and email isnt working… Totroubleshoot it all , Roudcube successfully connects and sends emails when connecting to localhost (as Ropundcube it runs on the…Continue reading Webmin postfix SASL failure
Virtualmin: connect to Milter service inet:localhost:8891: Connection refused
Came across this error on Debian 9 and Virtualmin. When setting up DKIM for email delivery it seems like it cant connect to the milter. Error logs were showing Also running netstat -natpu | grep opendkim showed nothing. A couple steps to fix, Go into Virtualmin > Email Settings > DomainKeys Identified Mail Disable DKIM…Continue reading Virtualmin: connect to Milter service inet:localhost:8891: Connection refused