Compliance Checker is a free, downloadable tool that provides a real time compliance check for multiple VMware ESX host servers at a time.

This product is a robust utility providing detailed compliance checks against both the VMware Hardening Guidelines and the CIS benchmarks for ESX. Unlike other free tools in the market, Compliance Checker is a fully functional product.

For example, you can print the reports that Compliance Checker produces, and can run compliance checks across multiple ESX servers at once.

Download it here