Ensure the Network Adapter is set to Host-Only or Internal Network .

Unlike Metasploitable 2, which was distributed as a simple zip file, Metasploitable 3 is primarily hosted on as a build project. However, many users prefer a pre-built OVA (Open Virtualization Format) file to save time on the lengthy compilation process. 1. The Official Build Method (GitHub)

Because the build process is complex, many community members host pre-built OVA files. When searching for these, look for reputable sources like or mirrors provided by security training sites.

The "3" in the name signifies a shift toward modern OS environments, including and Ubuntu 14.04 , providing a more diverse lab than the original Linux-only versions. Where to Find the Metasploitable 3 OVA Download

Getting Started with Metasploitable 3: A Guide to the OVA Download and Setup

Using frameworks like Metasploit to gain access.

Classic Windows vulnerabilities like EternalBlue (on the Windows node). Final Security Tip