Axel Werner's OPEN SOURCE Knowledge Base

My Solution on Assignment 1 - Problem 4

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

My Solution on Assignment 1 - Problem 4 This is my Solution of Assignment 1 - Problem 4 from the Computer Science Course CS106A of Prof. Mehran Sahami at the STANFORD University. /* * File: MidpointFindingKarel.java * ------------------------------- * When you finish writing it, the MidpointFindingKarel class should * leave a beeper on the corner closest to the center of 1st Street * (or either of the two central corners if 1st Street has an even * number of corners). Karel can put do…

How i would install Ubuntu server 20.04 LTS with bridged interfaces?

Anonymous (anonymous@undisclosed.example.com) — 2022-11-02T15:47:03+00:00

How i would install Ubuntu server 20.04 LTS with bridged interfaces? FIXME FIXME FIXME work in progress STUFF TO READ: * * FIXME FIXME FIXME Szenario / User requirements: This is the network how i like to have it: * [X] are Hosts/Devices

Formatting Syntax

Anonymous (anonymous@undisclosed.example.com) — 2024-05-12T13:48:45+00:00

Formatting Syntax DokuWiki supports some simple markup language, which tries to make the datafiles to be as readable as possible. This page contains all possible syntax you may use when editing the pages. Simply have a look at the source of this page by pressing

How to join or connect UBUNTU Desktop 18.10 Workstation to an Active Directory (AD) Domain, including automatic mounting of CIFS (SMB) shares and home directory

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

How to join or connect UBUNTU Desktop 18.10 Workstation to an Active Directory (AD) Domain, including automatic mounting of CIFS (SMB) shares and home directory This page describes the results of a small 3 day workshop i threw with a former colleague on how to set up an UBUNTU Desktop 18.10 Workstation that connects to an existing (SAMBA 4 based) Active Directory domain, so that users can use their AD user accounts to graphically logon and have their cifs (or smb) shares and (windows) home dire…

My Reaction / Research on julian's investigates how slow is arduino youtube video

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

My Reaction / Research on julian's investigates how slow is arduino youtube video After i have seen Julian's YouTube Video ( ) on Arduino Microcontrollers i was courious about if the Arduino is really that slow and so i wanted to test it myself, trying out multiple methods to switch on and of a single pin on the arduino as fast as we can. This Page summarizes my results and shows the oscilloscope (scope) Screenshots and code that i have made and used.

My Solution on Assignment 1 - Problem 3

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

My Solution on Assignment 1 - Problem 3 This is my Solution of Assignment 1 - Problem 3 from the Computer Science Course CS106A of Prof. Mehran Sahami at the STANFORD University. /* * File: CheckerboardKarel_v2.java * ---------------------------- * When you finish writing it, the CheckerboardKarel class should draw * a checkerboard using beepers, as described in Assignment 1. You * should make sure that your program works for all of the sample * worlds supplied in the starter folder. …

How to enable audio normalization a.k.a. audio compression a.k.a. audio dynamic range compression under Rocky Linux 9 with pipewire

Anonymous (anonymous@undisclosed.example.com) — 2026-02-07T14:16:32+00:00

How to enable audio normalization a.k.a. audio compression a.k.a. audio dynamic range compression under Rocky Linux 9 with pipewire Under Windows its been around for many years already, installed by default and included pretty much with every sound driver. The user would just need to click a checkbox to enable it. With Linux it isn't that easy yet and most people are not even aware of it. But Linux offers a vast variety of messing with the audio path and signals in real time. Way more and bette…

How to make an Ubuntu or Debian apt repository locally available as an emergency offline fallback

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

How to make an Ubuntu or Debian apt repository locally available as an emergency offline fallback Maybe you never had that problem yourself, but there may be reasons why someone want to have one or multiple Ubuntu or Debian online repositories available on your local network. Maybe because you throw an Linux installation party and dozens of times the same repos and files are been pulled over a thin DSL connection. Or you want your own local mirror in case your internet connection goes down. Or …

Proxmox 7 Installation and Configuration with two network interfaces

Anonymous (anonymous@undisclosed.example.com) — 2023-08-05T14:01:26+00:00

Proxmox 7 Installation and Configuration with two network interfaces Network Scenario : This page show the installation notes for a two network interfaced Proxmox 7 virtualisation server. This is my network scenario we are going to work on: {LAN 192.168.0.0/24} || +==========================+ | [LAN IF 192.168.0.250] | | ProxMox 7 Host | | pve.lan | | [DMZ IF 192.168.178.250] | +==========================+ || {DMZ…

Repairing a faulty 80s Power Supply 13.8V/3A from CONRAD Elektronik, Germany

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T11:16:16+00:00

Repairing a faulty 80s Power Supply 13.8V/3A from CONRAD Elektronik, Germany CONRAD Elektronics is possibly Germanys largest and certainly the most popular Electronic Parts Reseller. Some time in the 1980s i bought a stabilized 13.8V, 3A (5A) DC Power Supply that served my needs for decades now. Lately i accidentally dropped it to the floor and after re-checking it, it seems to send out pretty much

How to install and configure Docker on UBUNTU Server 20.04 (and similar)

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

How to install and configure Docker on UBUNTU Server 20.04 (and similar) One can find “manuals” and “how to”s for this topic everywhere, but there is always something important missing and thus you'll have to do further search and puzzle everything together. I'm not saying that my manual here is ever complete, but at least from an administrators standpoint it hopefully covers more than the average docker page on the interwebs to prevent Docker from going haywire and pulling down your host. Sinc…

Ein- und Ausgehender eMail Verkehr testen mit Hilfe der TU-Berlin

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

Ein- und Ausgehender eMail Verkehr testen mit Hilfe der TU-Berlin ( auch für normale Benutzer geeignet ) :!: UPDATE 2018-02-17 : Der Dienst ist wohl seit Anfang 2018 nicht mehr bei der TU Berlin verfügbar :( . Allerdings gibt es zum Glück noch Andere, wie z.B. echo@univie.ac.at . Mehr darüber siehe auch:

DokuWiki

Anonymous (anonymous@undisclosed.example.com) — 2022-09-15T10:58:38+00:00

DokuWiki wiki:dokuwiki DokuWiki is a simple to use and highly versatile Open Source wiki software that doesn't require a database. It is loved by users for its clean and readable Formatting Syntax. The ease of maintenance, backup and integration makes it an administrator's favorite. Built in

Welcome to your new DokuWiki

Anonymous (anonymous@undisclosed.example.com) — 2025-09-21T15:16:03+00:00

Welcome to your new DokuWiki Congratulations, your wiki is now up and running. Here are a few more tips to get you started. Enjoy your work with DokuWiki, -- the developers Create your first pages Your wiki needs to have a start page. As long as it doesn't exist, this link will be red:

CS106A BouncingBall Sample Code Phenomenon - Ball bounces forever?

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

CS106A BouncingBall Sample Code Phenomenon - Ball bounces forever? This is the “BouncingBall” Sample Code for Computer Science Course CS106A of Prof. Mehran Sahami by the STANFORD University. Testing the Code on my computer with some changes at the parameters (class vars) turned out to show some STRANGE PHENOMENON. The ball seems not to come to rest. In fact, at the end you can easily see that it sometimes

My first real Java project - flashySquare V.1.0

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

My first real Java project - flashySquare V.1.0 This was my first self initiated Java Project from the scratch for training purposes. It requires the acm library which you can download from . It shows a simple rectangle and changes (fades) it from one color to another random color. Just like you might know it from some Microcontroller RGB LED Projects.

My Solution on Assignment 1 - Problem 2

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

My Solution on Assignment 1 - Problem 2 This is my Solution of Assignment 1 - Problem 2 from the Computer Science Course CS106A of Prof. Mehran Sahami at the STANFORD University. /* * File: StoneMasonKarel.java * -------------------------- * The StoneMasonKarel subclass as it appears here does nothing. * When you finish writing it, it should solve the "repair the quad" * problem from Assignment 1. In addition to editing the program, * you should be sure to edit this comment so that i…

My Solution on Assignment 2 - Problem 1

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

My Solution on Assignment 2 - Problem 1 This is my Solution of Assignment 2 - Problem 1 from the Computer Science Course CS106A of Prof. Mehran Sahami at the STANFORD University. /* * File: Pyramid.java * Name: * Section Leader: * ------------------ * This file is the starter file for the Pyramid problem. * It includes definitions of the constants that match the * sample run in the assignment, but you should make sure * that changing these values causes the generated display * to …

My Solution on Assignment 2 - Problem 2

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

My Solution on Assignment 2 - Problem 2 This is my Solution of Assignment 2 - Problem 2 from the Computer Science Course CS106A of Prof. Mehran Sahami at the STANFORD University. /* * File: Target.java * Name: * Section Leader: * ----------------- * This file is the starter file for the Target problem. * Assignment 2 , Problem 2 */ import acm.graphics.*; import acm.program.*; import java.awt.*; import javax.swing.plaf.synth.ColorType; public class Target extends GraphicsProgram {…

My Solution on Section1 - Cleaning PunchCards

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

My Solution on Section1 - Cleaning PunchCards This is my Solution of “Section1 - Cleaning PunchCards” from the Computer Science Course CS106A of Prof. Mehran Sahami at the STANFORD University. /* * File: Section1.java * -------------------------------- * Karel checks a punch card for half punched holes and cleans * those up. holes where the middle thingy is still existend * are considered as valid. */ import stanford.karel.*; public class Section1 extends SuperKarel { /** * Specif…

Automatisches Backup (RSYNC) mit Hot Plug SATA bzw USB Festplatten als Sicherungsmedium

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

Automatisches Backup (RSYNC) mit Hot Plug SATA bzw USB Festplatten als Sicherungsmedium Festplatten und sonstige Speicher werden schnell immer größer und damit wird es auch immer schwieriger regelmässig eine gute , schnelle und vollsständige Datensicherung aller wichtigen Daten anzufertigen. Magnetband, CD und DVDs sind inzw. oft schon wie zu klein, zu teuer und zu unpraktisch um damit die heutigen gigantischen Datenmengen zu sichern. Da hilft oft nur noch eine Backup-to-Disk Datensicherung.…

How to convert and stabilize Panasonic SDR-H20 video files to h265 mkv using ffmpeg

Anonymous (anonymous@undisclosed.example.com) — 2026-02-15T10:32:38+00:00

How to convert and stabilize Panasonic SDR-H20 video files to h265 mkv using ffmpeg If you once owned a digital Panasonic SDR-H20 SD Video Camera from around the mid-to-late 2000s, you might still have native video files from that device tucked away somewhere. Note that this camera was/is Standard Definition (SD) only—so no 1080p Full HD here!

How to enable audio normalization a.k.a. audio compression a.k.a. audio dynamic range compression under Debian Linux with pipewire

Anonymous (anonymous@undisclosed.example.com) — 2026-01-19T13:27:14+00:00

How to enable audio normalization a.k.a. audio compression a.k.a. audio dynamic range compression under Debian Linux with pipewire Under Windows its been around for many years already, installed by default and included pretty much with every sound driver. The user would just need to click a checkbox to enable it. With Linux it isn't that easy yet and most people are not even aware of it. But Linux offers a vast variety of messing with the audio path and signals in real time. Way more and better…

How to enable free updates to proxmox, the free open source vmware killer, without a costly subscription

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

How to enable free updates to proxmox, the free open source vmware killer, without a costly subscription ProxMox is an open source, free Linux Distro, that gives you enterprise grade VMWARE virtualisation features either free of charge. The product itself is free. The support isnt free. If you want to run proxmox in your enterprise and want it to be backed up with enterprise grade support, consider a subscription!

learning python3 - barGraph.py - small program to generate an ascii bargraph of any width

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

learning python3 - barGraph.py - small program to generate an ascii bargraph of any width These are my first steps in python programming language. The result is a little program that draws an ascii bargraph on to your console window, platform independend. it comes with 3 internal demos to show what it can do so far. its not really a beauty and could be done better, but for my first steps in python im quiet happy with my progress in learning python so far. So to help out others to help learn pyt…

Meine IT Artikel

Anonymous (anonymous@undisclosed.example.com) — 2026-02-12T17:01:42+00:00

Meine IT Artikel Linux * How to convert and stabilize Panasonic SDR-H20 video files to h265 mkv using ffmpeg * Improve your MPV experience by adding a trash-and-skip key binding workflow * SAMBA - Einige nützliche NET Kommandos... * mutt goes Maildir/ - Wie man mutt für Maildir konfiguriert * Link Speed und Link Modus einer Ethernet Schnittstelle einstellen mit ethtool * Screen - Fenster Manager und Multifunktions-Werkzeug für die Text-Konsole * Systemweites AUTOLOGOUT für ROOT…

A Solution on Assignment 2 - Problem 3

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

A Solution on Assignment 2 - Problem 3 This is “a” Solution of Assignment 2 - Problem 3 from the Computer Science Course CS106A of Prof. Mehran Sahami at the STANFORD University. In fact, i cant realy tell anymore if I wrote this code or if i found it somewhere on the internet :). It looks pretty much like programm code i usualy make. But will not claim that this is MY Code. Just a Code that solves the Problem as requested for example purposes.

My Solution on Assignment 2 - Problem 4

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

My Solution on Assignment 2 - Problem 4 This is my Solution of Assignment 2 - Problem 4 from the Computer Science Course CS106A of Prof. Mehran Sahami at the STANFORD University. /* * File: PythagoreanTheorem.java * Name: Axel Werner * Section Leader: * ----------------------------- * This file is the starter file for the PythagoreanTheorem problem. */ import acm.program.*; public class PythagoreanTheorem extends ConsoleProgram { public void run() { println("PythagoreanTheorem : …

My Solution on Assignment 2 - Problem 5

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

My Solution on Assignment 2 - Problem 5 This is my Solution of Assignment 2 - Problem 5 from the Computer Science Course CS106A of Prof. Mehran Sahami at the STANFORD University. /* * File: FindRange.java * Name: Axel Werner * Section Leader: * -------------------- * This file is the starter file for the FindRange problem. */ import acm.program.*; public class FindRange extends ConsoleProgram { /** * Main Program to requests a list of integers from the user * to determine an…

My Solution on Assignment 2 - Problem 6

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

My Solution on Assignment 2 - Problem 6 This is my Solution of Assignment 2 - Problem 6 from the Computer Science Course CS106A of Prof. Mehran Sahami at the STANFORD University. /* * File: Hailstone.java * Name: Axel Werner * Section Leader: * -------------------- * This file is the starter file for the Hailstone problem. */ import acm.program.*; /** * Class to ask User for a integer start number to * calculate Hailstone Numbers sequence. * @author Axel Werner */ public class …

My Solution on CS106A - Section 20 - Problem 3 - Random Circles

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

My Solution on CS106A - Section 20 - Problem 3 - Random Circles This is my Solution on CS106A - Section 20 - Problem 3 - Random Circles from the Computer Science Course CS106A of Prof. Mehran Sahami at the STANFORD University. Question: On some runs of this program you might not see ten circles. Why? My Answer: Since there is no special controlling on where to place new circles on the canvas it is possible that it puts a new larger circle on top of an older smaller circle, covering the older…

My Solution on CS106A - Section 20 - Problem 4 - Drawing Lines

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

My Solution on CS106A - Section 20 - Problem 4 - Drawing Lines This is my Solution on CS106A - Section 20 - Problem 4 - Drawing Lines from the Computer Science Course CS106A of Prof. Mehran Sahami at the STANFORD University. My Code: /* * File: DrawLines.java * ------------------- * Name: Axel Werner [mail@awerner.myhome-server.de] * Section Leader: * * CS106A - Section 20 - Problem 4 - Draw Lines * * Write a GraphicsProgram that allows the user to * draw lines on the canvas. Pr…

Command line (cli) examples for use with LBRY a.k.a. ODYSEE video platform (youtube alternative)

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

Command line (cli) examples for use with LBRY a.k.a. ODYSEE video platform (youtube alternative) If your are a former Youtuber switching to ODYSEE a.k.a. LBRY, you might be interested in how to control and use ODYSEE/LBRY from the command line, for faster and easier video transcoding, easier uploading and such. The true professional knows, the CLI may not look pretty, but is far superior and faster compared to any

Cowsay / Cowthink - Skurriles auf der Kommandozeile

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

Cowsay / Cowthink - Skurriles auf der Kommandozeile Thanks to "Climagic" on YouTube for mentioning this funny little CLI tool! \\ Dank an "Climagic" auf YouTube für den Hinweis auf dieses lustige skurrile Konsolenprogramm. Mit “sudo aptitude install cowsay” lässt sich auf Debian basierten Distros (Ubuntu usw) ein lustiges kleines Kommandozeilen Tool installieren, welches auf der Konsole eine “Kuh” aus ASCII

How to achieve easy automatic deployment of Centos7 as VirtualBox VM in a dynamic DNS LAN environment with an Ansible playbook

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

How to achieve easy automatic deployment of Centos7 as VirtualBox VM in a dynamic DNS LAN environment with an Ansible playbook PLEASE NOTE:“”“” Scenario / Environment: * Have an internet connected LAN with a local DHCP and “dynamic DNS”

How to configure or add a static IPv6 address to your IPv4 Ubuntu Server with bridged interfaces?

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

How to configure or add a static IPv6 address to your IPv4 Ubuntu Server with bridged interfaces? I ran a UBUNTU Server 14.04/16.04 LTS on a computer on a small SOHO as an router/firewall, using two network interfaces. One is towards the internet, one for internal (

How to enable audio normalization a.k.a. audio compression a.k.a. audio dynamic range compression under Linux? (pulse audio)

Anonymous (anonymous@undisclosed.example.com) — 2026-02-08T07:05:18+00:00

How to enable audio normalization a.k.a. audio compression a.k.a. audio dynamic range compression under Linux? (pulse audio) NOTE / UPDATE : :!: Meanwhile i managed to achieve the same result on Linux Distros with PipeWire , using SWH's LV2 and/or LADSPA plugins. See my articles about pipewire on this website.

How to enable pc speaker on UBUNTU 20.04 to make your server audible without additional hardware

Anonymous (anonymous@undisclosed.example.com) — 2022-10-30T16:43:26+00:00

How to enable pc speaker on UBUNTU 20.04 to make your server audible without additional hardware Maybe you run a physical Linux server somewhere under a desk or somewhere in your small office / home office which still contains spinning platters ( hard disks ) or any other hardware that

How to find files by separate keywords real quick using 'locate' instead of 'find'?

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

How to find files by separate keywords real quick using 'locate' instead of 'find'? If you have lots and lots if files accumulated over the decades , more or less organized, you sometimes need to find a file real quick. you might know some sort of keyword or partial filename , but cant remember where its located at. There you could go for some

How to mount home from another already mounted drive or volume for better snaps support

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

How to mount home from another already mounted drive or volume for better snaps support Something historic “snaps” seem Canonical's/Ubuntu's prefered package format for easy and fast installation of desktop apps. However the whole snaps system often fails with errors if someone has moved the

How to upgrade Ubuntu Linux 16.04 LTS, 16.10 or 17.04 to Ubuntu 18.04 LTS inplace

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

How to upgrade Ubuntu Linux 16.04 LTS, 16.10 or 17.04 to Ubuntu 18.04 LTS inplace To upgrade Ubuntu you often dont need to do a fresh install of it. You can try an inplace upgrade instead with only a few easy steps. :!::!::!: However its highly recommended that you first BACKUP ALL YOUR DATA AND CONFIGURATION FILES

ISO CD/DVD Images mounten und/oder ISO Images von CD/DVD erstellen \\ HOW TO CREATE ISO CD/DVD IMAGES AND HOW TO MOUNT ISO IMAGES ON ANY LINUX

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

ISO CD/DVD Images mounten und/oder ISO Images von CD/DVD erstellen \\ HOW TO CREATE ISO CD/DVD IMAGES AND HOW TO MOUNT ISO IMAGES ON ANY LINUX Aus einer CD/DVD ein ISO Image/File machen / HOW TO make an ISO from CD/DVD Nichts einfacher als das! Die Mittel dazu sind AUF JEDEM LINUX VORHANDEN!

Screen - Fenster Manager und Multifunktions-Werkzeug für die Text-Konsole

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

Screen - Fenster Manager und Multifunktions-Werkzeug für die Text-Konsole Screen ist ein relativ unbekanntes aber sehr nützliches Tool wenn man viel mit Text-Konsolen arbeitet. Es ist zum einen eine Art “Fenstermanager” wie man es unter Gnome/KDE oder Windows her kennt, d.h. man kann mehrere Anwendungen in verschiedenen

shellscript - automatically fix wrong filename extensions - fix-filename-extension.sh

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

shellscript - automatically fix wrong filename extensions - fix-filename-extension.sh Its a little weird topic. But when you have to deal a lot with “non IT people” throwing around lots of files like photos and/or archive files and they mix up each and every file format and filename extensions, it quickly can get messy. This shell script is a early attempt to quickly and easily find these

STATA 12 on 64Bit SLES 11 sp1 - libgtksourceview-1.0.so.0: cannot open shared object file

Anonymous (anonymous@undisclosed.example.com) — 2022-08-31T12:30:19+00:00

STATA 12 on 64Bit SLES 11 sp1 - libgtksourceview-1.0.so.0: cannot open shared object file Today i tried to install STATA12 Statistics Software on a SuSE Linux Enterprise Server (SLES) 11 sp1 64bit and stumbled over an error message that some library is yet not found:

Improve your MPV experience by adding a trash-and-skip key binding workflow

Anonymous (anonymous@undisclosed.example.com) — 2026-01-25T22:58:14+00:00

Improve your MPV experience by adding a trash-and-skip key binding workflow I know #Kodi ! I love #VLC ! But since i learned to know #MPV is LIVE it! Looks like nothing, but is everything one could ever want. However the default configuration really needs some personal touch to make it work for me.