Creating a SSH Tunnel in Java

April 9th, 2017

tl;dr

How to create a SSH tunnel in a Java app from a localhost port through a jump box to a specific port on a server. Allowing a connection to the remote server port as if it was a localhost port.

Examples found online provided only one ‘hop’, not the double ‘hop’ needed. The code below supports 2 hops, but in theory could be used to support any number of hops.

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Raspberry Pi Full Screen Browser (Raspbian November 2016)

December 29th, 2016

tl;dr

Steps to setup a Raspberry Pi running Raspbian to boot into a full screen web browser, hiding mouse pointer, disabling screen saver. Includes installing additional fonts and putting the browser in kiosk mode.

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stupid-remote: a HDMI-cec node.js Web App

December 19th, 2016

tl;dr

A web app to control devices over HDMI-cec, turning tvs on and off, switching inputs adjusting volume. New project, customization requires editing simple HTML and JavaScript.

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Using cec-client on a Raspberry Pi

December 14th, 2016

Most modern HDMI connected devices support Consumer Electronics Control (CEC). It allows devices to send commands to each other, typically to get the TV to switch input and control volume. If you have ever turned on a Game Console and had your TV automatically change input to that device you have seen CEC in action. It is very convenient and useful, sort of a universal remote that works.

Every manufacturer seems to have it’s own branding of CEC (e.g. Samsung Anynet+, LG SimpLink, Sharp Aquos Link) but it may need to be enabled. Check your manual for details.

Using a Raspberry Pi connected to a TV that supports CEC, you can use the command line cec-client application to control the inputs and the TV itself. These are notes on how to use cec-client and understand the different options.

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OpenBSD 6.0 VPN Endpoint for iOS and OSX

December 10th, 2016

Being able to remotely connect to my home network over VPN has always been on my ‘nice to have’ list. It allows easier access to resources and direct ssh (rather then hoping through the gateway). I have recently updated the OpenBSD server I used for VPN to 6.0 and thought I would share the configuration and settings.

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