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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. However, the Nessus Agent process is a low-priority process and yields the CPU whenever asked.

For more information on Nessus Agent resource usage, refer to Software Footprint and Host System Utilization.

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
Disk Speed 15-50 IOPS

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