The Servlet 4.0 specification is out and Tomcat 9.0.x does support it. Time to dive into Tomcat 9. Prerequisite: Java Since OS X 10.7 Java is not (pre-)installed anymore, let’s fix that by installing a Prebuilt OpenJDK Binary. Easy to follow details about how to install OpenJDK are available here. Anyway, after opening the Terminal app, java –version […]
Author: Wolf Paulus
Installing Java on macOS 11 Big Sur

Since OS X 10.7 Java is not (pre-)installed anymore, let’s fix that. As I’m writing this, Java 11.0.9 is the latest LTS (Long Term Support) version and AdoptOpenJDK is one of the best places to find Prebuilt OpenJDK Binaries. Easy to follow details about how to install OpenJDK are available here. However, the easiest way is to […]
One Lambda to rule them all

Whenever I got a new laptop or was (re-)installing macOS from scratch, a Java JDK, IntelliJ IDEA, and Tomcat, the “pure Java” HTTP web server environment, were always among the 1st things I installed. How times have changed. Now it’s Docker, Python3, PyCharm, and AWS and SAM CLIs that go on first. I still do […]
Tunneling Web and Git access through a remote VPN Client

This post is for the long tail since only a few will find it helpful, but for those it may just be the dramatic productivity booster they were looking for. Imagine a scenario where you have a dedicated machine on you local network and only that machine has a VPN client installed, which allows access […]
Cable Modem Signal Levels revisited

Fourteen years ago I wrote a blog post about the signal levels that come in and go out of your typical cable modem. Some things have changed some stayed the same. Let’s revisit this topic. The IP address to connect to a cable modem is still the same 192.168.100.1. These days, I’m still using a […]