Stalwart Mail Server: Self-Hosted Email and Collaboration Training Course

Gitea acts as a lightweight, open-source, self-hosted Git service offering robust repository management, code review, issue tracking, and CI/CD integration. It stands as a popular choice for teams requiring full control over their source code, avoiding the constraints of third-party terms of service or export restrictions typically associated with GitHub and GitLab.com.

GitLab Self-Managed provides the on-premises deployment of GitLab's full DevSecOps platform, covering source code management, CI/CD, container registry, security scanning, and monitoring. It is the benchmark for organizations that desire the entire GitLab feature set without relying on SaaS services or allowing data to exit their network.

This instructor-led, live training in Hungary (available online or on-site) targets intermediate to advanced DevOps engineers and system administrators who intend to deploy and manage self-hosted Kubernetes clusters without cloud dependencies.

By the end of the training, participants will be able to: deploy production-ready Kubernetes clusters using kubeadm on bare-metal or virtual machines; configure high-availability control planes and etcd clusters; implement container networking and storage for self-managed environments; and set up monitoring and observability using self-hosted solutions.

This live, instructor-facilitated training, offered online or on-site, is designed for cloud professionals aiming to build and implement multi-cloud architectures that prevent vendor lock-in and guarantee data sovereignty.

By the end of the program, participants will be capable of identifying vendor lock-in risks, designing portable architectures, enforcing data sovereignty controls, and utilizing cloud-agnostic tools effectively.

This instructor-led, live training in Hungary (online or onsite) is aimed at network engineers and infrastructure professionals who wish to use SONiC and ONL to deploy and manage open network infrastructure on white-box switches.

By the end of this training, participants will be able to: understand SONiC and ONL architecture, deploy open-source NOS on white-box hardware, configure networking features, and implement monitoring and automation.

This live, instructor-led session, available online or on-site, is tailored for system administrators and infrastructure engineers looking to design, deploy, and manage private OpenStack cloud infrastructure for enterprise use.

By the end of the training, participants will be able to comprehend OpenStack architecture, execute private cloud deployments, manage compute and storage resources, integrate security via Keystone, and apply enterprise-standard best practices.

This instructor-led, live training in Hungary (available online or onsite) targets intermediate-level network engineers and infrastructure administrators who wish to implement software-defined networks using open-source tools and technologies.

By the end of this training, participants will be capable of designing SDN architectures, implementing Open vSwitch, configuring FRRouting, deploying SDN controllers, and automating network management.

This live, instructor-led training in Hungary (available online or onsite) is designed for intermediate-level network and infrastructure professionals. It focuses on using open-source routing, switching, Wi-Fi, and management tools to design, deploy, and operate self-managed enterprise networks.

By the end of this training, participants will be able to: design open-source enterprise network architectures, configure routing, switching, and wireless services, enhance security and observability, and establish operational plans for ongoing support.

Uptime Kuma is an easy-to-use, self-hosted monitoring tool that tracks the availability of websites, services, and infrastructure. It serves as a direct replacement for Pingdom, Datadog Synthetics, and UptimeRobot, offering teams full control over their monitoring data. This instructor-led, live training—available online or onsite—is designed for beginner-to-intermediate SREs and DevOps engineers who wish to transition from cloud uptime monitoring to a self-hosted, sovereign status tracking platform.

This live, instructor-led training in Hungary (online or on-site) caters to security engineers and system administrators seeking to implement and manage enterprise-grade self-hosted VPN environments using WireGuard and OpenVPN.

Upon completion, participants will be proficient in deploying WireGuard and OpenVPN, designing scalable architectures, integrating with identity systems, and monitoring or securing VPN infrastructure.

OpenVPN and WireGuard are the prevailing open-source standards for VPN technology. Hosting your own VPN server guarantees that no external entity can log traffic metadata, inject ads, or comply with foreign data requests. This training delves into both protocols, catering to various threat models and performance demands.

Wazuh functions as an open-source security platform that integrates XDR and SIEM features for effective threat detection, integrity monitoring, incident response, and compliance management. It centralizes endpoint telemetry into a self-managed analysis engine, providing a strong alternative to Splunk Enterprise Security, Microsoft Sentinel, and other cloud-native SIEM offerings.

Woodpecker CI is a streamlined yet robust continuous integration engine built specifically for self-hosted Git forges such as Gitea and Forgejo. It delivers a lightweight, Docker-native CI/CD experience that avoids the complexity and licensing costs associated with enterprise CI platforms.

This instructor-led live training in Hungary (online or onsite) is designed for intermediate to advanced security professionals aiming to implement Zero Trust Architecture using open-source tools and sovereign infrastructure.

By the end of this course, participants will be equipped to design Zero Trust architectures, deploy identity-aware proxies, establish dynamic authentication, secure microservices via service mesh, and monitor zero trust policies.