Author Archives: 7u83

Install Netbeans 8.2 on Ubuntu 18.04

By | September 3, 2018

First you have to install OpenJDK 8 because Netbeans doesn't work with OpenJDK 11 which is installed on Ubuntu 18.04 by default. sudo apt-get install openjdk-8-jdk Next download here the Netbeans installer of your choice for Linux. If you chose Netbeans IDE Java SE you should get the file: netbeans-8.2-javase-linux.sh. Now start the installer, setting… Read More »

Aironet AP IOS Recovery - Flashing an AP 1142N or a Similar Device using TFTP on Ubuntu/Debian

By | February 17, 2018

Ok. You want to flash the firmware of a Cisco 1140, Cisco 1130 or any other Aironet AP. So,  download here the desired image you want to install, if you haven't already done so. To install the image we have to setup a TFTP server on our Ubuntu/Debian system. We assume you have opened a… Read More »

Bad Coding Style (I)

By | February 12, 2018

Look at the following PHP code snipped. It's a function which calculates the product of its two arguments and returns the result if both arguments are of type integer. Otherwise the function returns false. So far so good. The function does what it should do, and I have seen a lot of functions written this… Read More »

How to Setup a Bitcoin BIP148/UASF Node on FreeBSD

By | May 22, 2017

Assuming you have a fresh FreeBSD (or a jail) installed, and you are logged in as root, download the latest version of BIP148 enabled bitcoin sources from here as .tar.gz file and untar it.  As of writing it is v0.14.1-uasfsegwit0.3.tar.gz. fetch https://github.com/UASF/bitcoin/archive/v0.14.1-uasfsegwit0.3.tar.gz tar xzvf v0.14.1-uasfsegwit0.3.tar.gz cd bitcoin-0.14.1-uasfsegwit0.3 Next the documentation in ./doc/build-unix.md tells us which… Read More »

SeSim - First Pre-Alpha

By | March 26, 2017

Now you can download a first rudimentary version of SeSim, the Stock Exchange Simulator as announced here. It was tested under Windows and Linux. You can download the jar file uSeSim_001_alpha.jar which you can run, if java is installed on your computer. To play around with, create first a strategy, by going to edit->strategies, pressing… Read More »

Bitcoin vs. Gold

By | March 10, 2017

Bitcoin was raising, and the price for one Bitcoin is now around the same as for one ounce of gold. So isn't it insane to pay for one Bitcoin as much as for one ounce of gold? According to this article there are currently between 155,244 tonnes and 2.5 million tonnes of gold in the… Read More »