Tech
In our tech blog, we share technical insights, tutorials, and best practices from our daily work. Here you will find articles about topics such as Proxmox, Kubernetes, open-source infrastructure, system administration, and modern IT platforms.

Installing OpenProject – Building a Production-Ready Project Management and Collaboration Platform
9 minutes readPractical guide with Docker or Podman Compose, PostgreSQL, Memcached, Hocuspocus, Nginx reverse proxy and TLS 1. Introduction OpenProject is a powerful open-source platform for project management, work packages, roadmap…
: Installing OpenProject – Building a Production-Ready Project Management and Collaboration Platform
Installation of XWiki – Building a Productive Knowledge Management and Collaboration Platform
6 minutes readPractical guide to architecture, WAR deployment, PostgreSQL integration, Nginx reverse proxy, and TLS hardening 1. Introduction XWiki is a powerful open-source platform for knowledge management, technical documentation,…
: Installation of XWiki – Building a Productive Knowledge Management and Collaboration Platform
grommunio-antispam – efficient spam filtering with centralized management and self-learning mechanisms
6 minutes readIntegration of Rspamd into production grommunio environments 1. Introduction With grommunio-antispam, the platform is extended by a powerful spam filtering component based on Rspamd, combining modern analysis methods. I…
: grommunio-antispam – efficient spam filtering with centralized management and self-learning mechanisms
grommunio-auth – Centralized Authentication with Keycloak and Existing SSO
7 minutes readIntegration of grommunio into Existing SSO Environments 1. Introduction With grommunio-auth, the platform is extended by an authentication layer based on Keycloak and supporting modern standards such as OpenID Connect.…
: grommunio-auth – Centralized Authentication with Keycloak and Existing SSO
Installation of grommunio – Building Your Own Groupware Platform
7 minutes readInstallation of grommunio – Building Your Own Groupware Platform Practical guide including pre-configuration, installation, DNS setup, testing, and forecast 1. Introduction With grommunio, a modern groupware solution is…
: Installation of grommunio – Building Your Own Groupware Platform
Secure DNS and ACME Setup with Knot
2 minutes readIntroduction DNS is one of the most critical components of modern IT infrastructures. Nevertheless, it is often only considered when problems arise. Especially when automating TLS certificates via ACME, solutions tend t…
: Secure DNS and ACME Setup with Knot




