1. Introduction

The VPL Jails System is the open-source execution environment for the Virtual Programming Lab (VPL), providing the backend infrastructure needed to run, evaluate, and grade code in multiple programming languages.

Built with a modular architecture, the system supports easy installation and configuration of diverse language environments and tools, making it adaptable to a wide range of courses and institutional needs.

Its core objective is to enable the safe, isolated, and controlled execution of students’ code. It supports a broad spectrum of programming languages and development tools.

Designed for Linux-based systems, the VPL Jails System supports both local and containerized (e.g., Docker-based) deployments. It includes key features such as SSL/TLS encryption, firewall integration, resource usage limits, and fine-grained network access control.

In summary, the VPL Jails System is a powerful and flexible solution for delivering interactive, secure, and scalable programming assignments and assessments in academic environments.

For more details about VPL, visit the VPL home page or the VPL plugin page at Moodle.