In this quick How-To guide we go through the steps we used to install and configure Vulnerability Scanner for our small network. The product we decided on was Nessus Essentials (formally Nessus Home) from Tenable. We decided on this product as its free to use up to 16 IP addresses per scanner and has many enterprise grade capabilities. We needed a product that could scan our 5-production servers for vulnerabilities. It helped us tremendously in December 2021 when log4j hit and will add value for the current spring4shell we are looking into.
More information on this product can be found on the tenable website. https://www.tenable.com/products/nessus/nessus-essentials