Blog

July 23, 2020

Video Acceleration on Ubuntu with Nouveau and a GTX 760

If you find this article helpful, you might want to consider using my referral code (ARM7IBQY) to sign-up for Shadow. (Although it most likely is too late, when you’re faced with the following problem.

Alpine as docker host

March 26, 2020

Alpine is a super small linux distribution. I am using it for all my new VMs running a docker instance.

OpenCV 4 + Windows + Mingw + VSCode

September 8, 2019

Installing OpenCV 4 on Linux is difficult, but can be done. On Windows it took me hours to get it working.

Make your Blog: Harder, Better, Faster, Stronger

August 24, 2019

These interests are the main reasons for many blog authors to switch to static site generators like Jekyll or Hugo. Performance and security is always a thing you should be aware of when hosting a website, but I am feeling comfortable with the WordPress right now and my guest authors like to write posts with the Gutenberg editor as well.

Sniffing your phone’s traffic

July 15, 2019

Checking your phone’s network traffic is often very interesting. I usually use mitmproxy for that. You can simply install it as a docker container and just need to change your phone’s proxy settings.

VS Code personalizations

July 9, 2019

This list contains some of my personal settings and optimizations I normally use in VS Code. Show whitespaces VS Code 1.

Mysql backup script

May 19, 2019

I recently created a new mysql backup script. It is compatible with local mysql-servers or can be used to backup the databases of a docker container.

JavaFX 8 on Ubuntu

May 13, 2019

If you want to use JavaFX with OpenJDK 8 on Ubuntu you have to install an older version of OpenJFX and its dependencies.

Regex collection

April 20, 2019

This is a collection of regex expressions I often use. They are not perfect and 100% correct, but will catch most errors a user normally makes.

Traefik – New reverse proxy!

February 4, 2019

I was recently introduced to a new software called Traefik. A reverse proxy / load balancer that’s easy, dynamic, automatic, fast, full-featured, open source, production proven, provides metrics, and integrates with every major cluster technology… No wonder it’s so popular!

Asterisk with fail2ban

February 2, 2019

I recently started to add some security features to my asterisk server. One was adding a fail2ban jail. Because I have asterisk running inside of docker, I mounted my log folder and changed fail2ban (installed on my docker host itself) to use the message file

Pfsense / OPNsense Voip

November 17, 2018

Wer mit Pfsense oder OPNsense seine Firewall Zuhause oder im Betrieb betreibt und zusätzlich noch Voip Telefonie hinter dieser nutzen möchte kommt schnell auf ein kleines Problem.

Sip Configs

November 17, 2018

Da ich selber andauernd die richtige Konfiguration der verschiedenen Provider nach lesen muss und auch öfters danach gefragt werde, beginne ich nun hier mal mit einer kleinen Sammlung.

Openvpn: Update dns servers FIX

September 10, 2018

Because newer Ubuntu versions are using systemd for dns resolution instead of resolvconf, you need to modify your Openvpn client config a bit.

Proxmox changing lxc network config

September 10, 2018

When using a lxc container in Proxmox it (sometimes) happens that Proxmox overrides the network config of the container and applies its own.

Postfix sender_login_maps

August 27, 2018

Bash helpers

August 27, 2018

DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"

Deutsche Glasfaser: IPv6 vs. pfSense/opnSense

August 19, 2018

Dieser Eintrag wurde nach der Erstveröffentlichung wesentlich erweitert und verändert. An dieser Stelle besten Dank an Sven Hofacker für das gemeinsame Erarbeiten einer besseren Konfiguration.

Docker IPv6

August 18, 2018

There are diffrent ways to support IPv6 in Docker. The easiest is to enable ipv6 on the docker host and simply use the docker proxy to forward ipv6 via ipv4 to the containers.

Browsersync

August 8, 2018

Stop reloading your browser by hand anytime your css, js or template re-renders. Try using Browsersync. I really started loving this tool.

Deutsche Glasfaser: VoIP

August 8, 2018

VoIP ISDN Funktionalitäten Die Deutsche Glasfaser offeriert in all ihren Tarifen die Telefonie mit VoIP. Es ist grundsätzlich eine “Leitung” und eine Rufnummer enthalten.

Sniffing for Packets

August 1, 2018

tcpdump -i any tcpdump -i eth0 tcp port 80 tcpdump -i eth0 tcp port 80 or 443 tcpdump -i eth0 icmp tcpdump -i eth0 icmp6 More details

Smart doorbell

July 24, 2018

A while ago I started to build a smart home integration for my door bell. The system I had to play with is a Ritto digital bus called Twinbus.

Serial problems with Ubuntu?

July 15, 2018

One of my main problems while connecting to a serial device was a software called ModemManager which automatically opened a connection to my devices on plug-in.

Docker daemon enable remote access

April 4, 2018

nano /lib/systemd/system/docker.service and change ExecStart=/usr/bin/dockerd -H fd:// -H tcp://0.0.0.0:2375 [...] and restart docker with: systemctl daemon-reload service docker restart Source: [StackOverflow][1]

SSH Tunnel

April 4, 2018

ssh -R 8080:localhost:80 user@publicip ssh -R remote-port:pc-in-local-network:port-on-pc-in-local-network user@publicip

Bash Prompt

March 6, 2018

The Bash Prompt is the text on your console before the actual command. echo $PS1 If you get displaying errors or just want a shorter prompt just use:

Docker

December 13, 2017

Useful commands Remove dangling images docker rmi $(docker images --quiet --filter "dangling=true") Update Composer Project Dependencies docker run --rm -ti -v $PWD:/app -v /home/anton/.

SSH key login

December 12, 2017

ssh-keygen -t rsa -b 4096 ssh-copy-id root@external-server.org Now login to your external server via: ssh root@external-server.org

Webserver cluster [High Availability]

April 3, 2017

I recently wanted some kind of high availability for my private websites and applications, so I decided to setup a second server at my dads office as a failover system.

Kill Capslock

February 9, 2017

Install this register key to let your capslock behave like a simple shift key and don’t forget to reboot! Download

Usefull Linux Commands

January 18, 2017

Search for a string recursively grep -rnw './' -e "imsearchingyou" only specific files: grep -rnw './' --include=".php" -e "imsearchingyou" or a bit more clearly:

Howto Git

January 18, 2017

neues repository erstellen erstelle ein neues Verzeichnis, öffne es und führe git init aus, um ein neues git-Repository anzulegen. ein repository auschecken erstelle eine Arbeitskopie, indem du folgenden Befehl ausführst:

TFTP Server Install and Setup

January 13, 2017

TFTP Server Install and Setup Install following packages. sudo apt-get install xinetd tftpd tftp Create /etc/xinetd.

Entirely remove OneDrive

November 12, 2016

Download this file and execute it as an administrator. After a few seconds you are finished and your explorer is free again.