Tenable Nessus Network Monitor Software Requirements

Note: Standard support for Tenable Nessus Network Monitor 5.12 ends 09/30/2022. Tenable recommends updating to Tenable Nessus Network Monitor 6.0.0 or later. Otherwise, you will not be able to report issues and bugs. Users that connect to Tenable Vulnerability Management using a web proxy need to upgrade to Tenable Nessus Network Monitor 6.1.1 or later.

Tenable Nessus Network Monitor is available for the following platforms:

Version Software Requirements
  • Red Hat Linux ES 7 / CentOS 7 (through 7.9) 64-bit

  • Red Hat Linux ES 8 / CentOS 8 (through 8.7) 64-bit

  • Red Hat Linux ES 9 64-bit

    Note: For all versions of Red Hat Linux ES and CentOS, Tenable Nessus Network Monitor requires that you have systemd and firewalld on your system.

  • Microsoft Windows 10, Server 2012, Server 2016, and Server 2019 64-bit

    Note: Tenable Nessus Network Monitor requires Microsoft Visual C++ Redistributable for Visual Studio 2015, 2017 and 2019. You must download the specific package vc_redist.x64.exe from the Microsoft downloads site.

    High Performance mode only available on:

  • RH7/CentOS7 (RH 7.0 through RH 7.9) : 3.10.0-1160

  • RH8/CentOS8 (RH 8.0 through 8.5): 4.18.0-348

  • RH8 (RH 8.6-8.7): 4.18.0-425

You can use ERSPAN to mirror traffic from one or more source ports on a virtual switch, physical switch, or router and send the traffic to a destination IP host running Tenable Nessus Network Monitor. Tenable Nessus Network Monitor supports the following ERSPAN virtual environments:

  • VMware ERSPAN (Transparent Ethernet Bridging)
  • Cisco ERSPAN (ERSPAN Type II)

Tip: Refer to the Configuring Virtual Switches for Use with Tenable Nessus Network Monitor document for details on configuring your virtual environment.

High Performance Mode

To run Tenable Nessus Network Monitor in High Performance mode, you must enable HugePages support. HugePages is a performance feature of the Linux kernel and is necessary for the large memory pool allocation used for packet buffers. If your Linux kernel does not have HugePages configured, Tenable Nessus Network Monitor automatically configures HugePages per the appropriate settings. Otherwise, if your Linux kernel has defined HugePages, refer to the Configuring HugePages instructions in the Linux Command Line Operations section.