Erwin Müller Blog

Collection of Bash Scripts for Daily Usage

Konsole Bash

Collection of short scripts for my personal daily usage. The page will be updated and new scripts will be added. Some scripts I came by myself, some are adopted from various examples on the Internet, some are copied from those examples on the Internet. My scripts are published under the GPLv3 or later, adopted or…

Add Locale for Ubuntu Server

Locale

This is a short How-to how to add additional locales to your Ubuntu server. On a fresh installation of a Ubuntu server a default locale is installed, normally English, but if you have web services that presents the web site to the user in a different language, additional locales must be installed. The Ubuntu server…

Java Projects Report Sites

java-featured-image

I have been updating my Java projects and uploaded the Java report page on the server. The server runs Nginx with WebDAV to upload the report page. Maven is able to generate the report page for each Java project, the report page contains the Dependencies, Dependency Convergence, Dependency Information, Dependency Management, Distribution Management, About Page,…

Forecast Project

Forecast Derivation 1

Forecast Project Scope and Vision The Forecast software is using numerical integration and differentiation to find structures in a sequence of signal samples. The first-difference differentiator is used to calculate the differentiation: $latex y_f(n)=x_{n+1}-x_{n}$ To see the structures in the signal samples the data is sorted first for each row by the natural order of…

Global Scaling Calculator Suite

mainwindow_fractal_r3-2

For the last couple of weeks I was working on a new version of the Global Scaling Calculator application. The new version is designed to solve the issues with the last two Global Scaling Calculator applications, the Calculator and the Sound Generator. The first major issue is that it is not possible to analyze multiple…

SMTP Test Tool Swaks

swaks_logo_150

The well known method to test a SMTP setup is telnet tool, but the disadvantage is that you have to know the SMTP protocol. The following examples are to test a SMTP server for receiving and sending emails. But to test attachments and TLS, and more advanced options telnet is less adequate. Swaks is developed…

Install Redmine on Nginx/Thin Guide

install_redmine_nginx_thin_image

Introduction We will install Redmine project management web application that is proxied by the Nginx web server and is run with the Thin Ruby web server. As the Linux server I used Ubuntu 12.04 LTS. Redmine will be served on the domain protected by TLS/SSL. Redmine will be installed under the /var/www directory, under the…