Nessus Agent Hardware Requirements

Nessus Agents are designed to be lightweight and to use only minimal system resources. Generally, a Nessus Agent uses 40 MB of RAM (all pageable). A Nessus Agent uses almost no CPU while idle, but is designed to use up to 100% of CPU when available during jobs.

The following table outlines the minimum recommended hardware for operating a Nessus Agent. Nessus Agents can be installed on a virtual machine that meets the same requirements specified.

Hardware

Minimum Requirement

Processor

1 Dual-core CPU

Processor Speed

> 1 Ghz

RAM > 1 GB
Disk Space

> 1 GB with normal usage

> 2 GB under certain conditions, e.g. when a plugins-code.db defragmentation operation is in progress

Disk Speed 15-50 IOPS