Extracting text (and annotations) from HTML with Python
Python offers a number of options for extracting text from HTML documents. Specialized python libraries such as Inscriptis and HTML2Text provide good convers...
Recent posts
Setup and automatic renewal of wildcard SSL certificates for Kubernetes with Certbot and NSD
Wildcard SSL certificates cover all subdomains under a certain domain - e.g. *.k8s.example.net will cover recognyze.k8s.example.net, inscripits.k8s.example.n...
Managing DavMail with systemd and preventing service timeouts after network reconnects.
DavMail enables access to Exchange servers over standard protocols such as IMAP, SMTP and Caldav. It, therefore, allows you to check your company e-mail fro...
Setting up Gnome CalDAV and CardDAV support with Radicale
Although Gnome supports CalDAV and CardDAV, it currently only allows configuring them for Nextcloud servers. Their is a long standing Bug Report which descri...
Network-bound disk encryption in Ubuntu 20.04 (Focal Fossa) - Booting servers with an encrypted root file system without user interaction.
Network-bound disk encryption allows unlocking LUKS devices (e.g. the encrypted root file system of an Ubuntu server) without entering the password. Instead ...
How to resize a LUKS encrypted root partion
The Ubuntu standard setup for an encrypted root file system is quite complex as the following output shows:
Record Temperature, Humidity and Pressure with an ESP32, a Bosh BME280 sensor and InfluxDB
Install InfluxDB and Grafana at your server and create a database
Optimizing Apache Storm Topologies
This article summarizes hints for optimizing and deploying Apache Storm topologies.
Headless Seafile server on a Raspberry Pi 2 with dynamic DNS
The Raspberry Pi is operated from at home keeping noise and power consumption in mind.
Deploying third-party artifacts to a local repository with WebDAV
This guide outlines how to deploy third party jars to a local repository over WebDAV. Using WebDAV requires (i) setting up the login data of the WebDAV repo...
Linux Desktop Configuration
This post provides suggestions for a suitable linux desktop configuration
Debugging Java Memory Leaks
Suggested Resources
Creating cross-platform portable Virtual Machines with Docker
create a docker virtualbox machine and connect to it docker-machine create dbms eval "$(docker-machine env dbms)" build the docker image ...
Mailserver configuration
This page provides information on how to make your mailserver more resiliant against mail abuse.
Installing virtual appliances and VirtualBox
How to install virtual appliances on VirtualBox.