Securing Legacy Software Applications
Florian Pester

Securing Legacy Software Applications

Outdated legacy systems lack maintenance, support for modern encryption algorithms, and compatibility with current security software. KronoCore is designed to address these issues, ensuring your legacy applications run reliably and securely. Instead of expensive and risky redesign, KronoCore extends the lifetime of useful software indefinitely.

  • legacy-software
  • virtualization
  • kronocore
Modernizing a legacy Traffic Light with KronoCore
Jana Förster

Modernizing a legacy Traffic Light with KronoCore

KronoCore enables legacy software to run on modern hardware. In addition to hardware compatibility, it offers additional features that enhance security. Learn how KronoCore addresses these challenges with the help of a case study.

  • legacy-software
  • virtualization
  • kronocore
The Value of Nix/NixOS in our Engineering
Jana Förster, Markus Napierkowski

The Value of Nix/NixOS in our Engineering

Nix and NixOS are incredible technologies that make our every-day engineering much more productive. In this article, we will go through some of our use-cases and explain why and how Nix and NixOS help us.

  • nix
  • nixos
  • open-source
Nested Virtualization Bug Hunting with Cyberus Guest Tests
Thomas Prescher, Philipp Schuster, Julian Stecklina

Nested Virtualization Bug Hunting with Cyberus Guest Tests

In this article, we describe our discovery of undocumented behavior in KVM's nesting feature. Learn how we solved the situation in our KVM backend for VirtualBox.

  • virtualization
  • nesting
  • testing
  • systems engineering
  • debugging
  • kvm
  • virtualbox
  • linux
  • vmm
Nested Virtualization for the KVM Backend for VirtualBox
Thomas Prescher, Julian Stecklina

Nested Virtualization for the KVM Backend for VirtualBox

We're excited to share a new milestone for our KVM Backend for VirtualBox: nested virtualization is now supported. This means you can run virtual machines within other VMs, opening up new possibilities for testing and development environments. With nested virtualization, you can now run even more complex configurations, including HP Sure Click, enabling heightened security within virtualized environments.

  • virtualization
  • nesting
  • testing
  • systems engineering
  • debugging
  • virtualbox
  • vmm
  • kvm
Testing Virtualization Stacks by Utilizing Mini Operating System Kernels
Philipp Schuster, Markus Partheymüller

Testing Virtualization Stacks by Utilizing Mini Operating System Kernels

Testing and debugging erroneous behaviour by a guest under a virtualization stack is hard and difficult. By leveraging multiple mini operating system kernels, we can investigate issues related to complicated topics, such as never delivered interrupts, with a precise focus on where to look at. For that, we created our internal Cyberus Guest Tests that we present in this blog post.

  • virtualization
  • testing
  • test automation
  • systems engineering
  • quality assurance

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