I work as a security engineer, primarily on the offense side. I maintain some Linux embedded systems for my own test lab and a few hobby projects.
Security
- 21 Feb 2019 » IOT Regulations and Guidelines
- 07 Feb 2019 » Enumerating SSH Algorithms with Nmap
- 02 Feb 2019 » SSH Hostkey Fingerprints
- 27 Jan 2019 » Using Nmap to check certs and supported TLS algorithms
- 08 Dec 2018 » Signing code with OpenSSL
- 21 Nov 2018 » Running Snort on OpenBSD
ARM Shellcode
- 21 Dec 2018 » Linux ARM Shellcode - Part 0 - Credits and References
- 19 Dec 2018 » Linux ARM Shellcode - Part 3 - Bind and Reverse Shells
- 19 Dec 2018 » Linux ARM Shellcode - Part 8 - Exploiting the Stack
- 19 Dec 2018 » Linux ARM Shellcode - Part 7 - Corrupting the Stack
- 19 Dec 2018 » Linux ARM Shellcode - Part 6 - Randomized Address Space
- 19 Dec 2018 » Linux ARM Shellcode - Part 5 - Functions and the Stack
- 19 Dec 2018 » Linux ARM Shellcode - Part 4 - The Stack
- 19 Dec 2018 » Linux ARM Shellcode - Part 2 - Removing NULLs
- 19 Dec 2018 » Linux ARM Shellcode - Part 1 - Syscalls
Embedded Linux
- 08 Dec 2018 » Speeding up initialization of the Linux RNG
- 23 Jul 2018 » An upgrade strategy for embedded Linux systems
- 12 Nov 2017 » Choosing an embedded Linux build system
Raspberry Pi
- 15 Jun 2019 » Building Raspberry Pi Systems with Yocto
- 18 May 2019 » Using ADS1115 ADCs with Raspberry Pis
- 17 Aug 2018 » Analyzing SPI driver performance on the Raspberry Pi
- 15 Mar 2018 » Building Raspberry Pi Systems with Buildroot
- 24 Apr 2017 » Using DS18B20 1-wire Temp Sensors with the Raspberry Pi
- 16 Apr 2017 » Raspberry Pi TFT Displays and Qt5
- 10 Apr 2017 » Using Qt Creator to cross-compile and debug Raspberry Pi Qt5 apps
- 10 Apr 2017 » Working with the Gumstix Pi Compute Dev Board
- 10 Apr 2017 » Working with the Raspberry Pi Compute Board
- 09 Apr 2017 » Using the Raspberry Pi hardware PWM timers
- 16 Feb 2017 » Running Qt5 Apps Over VNC Works Again
- 31 Jan 2017 » Using MCP3008 ADCs with Raspberry Pis
- 23 Jan 2017 » Compiling Raspberry Pi Overlays with Buildroot
- 09 Jan 2017 » Enabling Qt5 WebEngine in Yocto Builds
- 02 Jan 2017 » Qt5 and QML Development with the Raspberry Pi
- 26 Dec 2016 » Raspberry Pi 3 AdHoc Wifi Network
- 20 Sep 2016 » Working with pi-blaster for PWM on the RPi
- 20 Mar 2016 » Raspberry Pi Serial Console
- 22 Jan 2016 » A Raspberry Pi Pandora music player
BeagleBone
- 18 May 2019 » Building BeagleBone Systems with Yocto
- 08 Jan 2018 » Adding Mender to a BeagleBone System
- 22 Dec 2017 » Building Beaglebone Systems with Buildroot
- 10 Mar 2017 » Working with the Beaglebone Black PRU using UIO
- 18 Jun 2016 » Working on the BeagleBone Kernel
- 22 Jan 2016 » BeagleBone Black pinmuxing and other device tree notes
- 23 Oct 2015 » BeagleBone Black U-Boot
Odroid
- 18 May 2019 » Building Odroid-C2 Systems with Yocto
- 04 Feb 2018 » Adding Mender to an Odroid-C2 System
Wandboard
- 18 May 2019 » Building Wandboard Systems with Yocto
- 07 Jan 2018 » Adding Mender to a Wandboard System
- 27 Dec 2017 » Building Wandboard Systems with Buildroot
Gumstix - Linux
- 18 May 2019 » Building Duovero Systems with Yocto
- 07 Jan 2018 » Adding Mender to a Duovero System
- 13 Mar 2017 » Duovero Real-time Clock
- 23 May 2016 » Building Overo Systems with Yocto
- 25 Jun 2015 » Duovero Access Point
- 05 Sep 2014 » Overo Kernel Development - Simple patching
- 02 Sep 2014 » Setting the Overo Ethernet MAC
- 25 Feb 2014 » Erasing the Overo U-Boot Environment
- 14 Jan 2014 » Optimizing GStreamer ffmpegcolorspace for Gumstix webcams
Yocto
- 02 Sep 2016 » Qt5 Errors on Exit using QPA
- 17 Feb 2016 » Miscellaneous Yocto Notes
- 20 Oct 2014 » Adding Go language support to a Yocto build
- 25 Jul 2014 » Managing a custom opkg repository
- 24 Jul 2014 » Using a Yocto build workstation as a remote opkg repository
- 02 Apr 2014 » Adding Fortran support to a Yocto build
- 24 Feb 2014 » Using private Github repos with Yocto
Miscellaneous
- 29 May 2018 » Working with a Mender CLI
- 12 Jul 2017 » Using private git repositories with Google Repo
Gumstix - FreeBSD
- 11 Jan 2015 » FreeBSD Duovero Common DTS for OMAP4
- 02 Dec 2014 » FreeBSD Duovero Kernel Development
- 24 Nov 2014 » FreeBSD Duovero build workstation setup
- 23 Nov 2014 » FreeBSD Duovero GPIO
- 18 Nov 2014 » FreeBSD Duovero I2C - Changing bus speeds
- 13 Nov 2014 » FreeBSD Duovero I2C
- 11 Nov 2014 » FreeBSD Duovero USB Wireless
- 09 Nov 2014 » FreeBSD Duovero Serial Ports
- 05 Nov 2014 » More FreeBSD on the Gumstix Duovero
- 05 Nov 2014 » FreeBSD on the Gumstix Duovero
General FreeBSD
- 30 Sep 2014 » FreeBSD on ARM