Using JavaScript to apply CSS to Internet Explorer/Edge returns ‘Assignment to read-only properties is not allowed in strict mode’ I encountered a silly mistake on my behalf the other day when programming some JavaScript DOM. This simple JS code to apply a style to an HTML element works fine in Chrome and Firefox. But breaks in Microsoft’s… Continue reading Assignment to read-only properties is not allowed in strict mode
Update, August 2016 This guide is for the late-2015’s release of Ubuntu Core for Raspberry Pi 2 that is based Ubuntu 15.04. Canonical has since made that release redundant with their newer Ubuntu Classic for Raspberry Pi 2 which is based on Ubuntu 16.04. Unfortunately the instructions below do not work with Ubuntu Classic. Introduction… Continue reading Turn a Raspberry Pi into an always on, BitTorrent client with Snappy Ubuntu Core
Why a Proxy? Apache’s Tomcat is a complex beast whose primary role is to render JavaServer Pages. While it can be configured to use and serve the modern web it’s often an unnecessarily complex procedure. By using a dedicated reverse-proxy server such as nginx it allows you to separate web applications from the task of web serving. Use a Solo Instance of… Continue reading Nginx as a Reverse-Proxy to Apache Tomcat
Ubuntu’s Message Of The Day or MOTD is the name given to the welcome screen users see when they login to a Ubuntu server using a remote terminal. On the surface the output looks like it is sourced from a basic text file but it is a collection of modular shell scripts being executed. In this entry… Continue reading Add to and change Ubuntu’s MOTD
In this entry I will guide you to update the standard terminal editor used by Ubuntu from its classic 2009 revision to its latest release.
The other day I was toying around with HTTP2 support and Jetty 9.3 on my Ubuntu Server 14.04 VM install. I had mostly followed the helpful instructions in the Jetty: The Definitive Reference on setting up the application as a web server with support for http, https, deploy modules. But whenever I tried to implement… Continue reading Jetty 9.3 HTTP2 dependency issue with Ubuntu 14.04
Introduction In this guide I will walk through the process of hardening HTTPS connectors used by Apache Tomcat. As unfortunately the default configuration of Ubuntu 14.04 LTS using Tomcat 7 and OpenJDK 7 are vulnerable to a number of attacks and weak encryptions. You can test your own site’s HTTPS implementation against these weaknesses at… Continue reading Secure and harden Apache Tomcat’s SSL/TLS
