Documentation Version: er2.0.28-docs-1.1

System Requirements

This page lists the system requirements for:

Master Server

CPU Architecture

The Master Server requires a 64-bit (x86_64) CPU.

Memory and Disk Space

The amount of disk space and RAM that your Master Server requires depends on the number of Targets and concurrent scans that it must deal with.

The following table shows the estimated requirements for a Master Server that supports a given number of Targets and concurrent scans based on a weekly scan with five logged in users:

Scans running Number of Targets Disk (GB) Memory (GB)
2 50 40 8
5 100 40 8
10 200 48 8
50 500 64 8
100 500 64 8
100 1000 128 8
200 2000 192 12
500 3000 256 16
System requirements vary, depending on the number of Targets that must be scanned, the amount of data scanned, and the complexity of the data residing in these Targets.

Node Agent

The Node Agent is designed to run with minimal impact on its host system. Its main role is to deliver and load the scanning engine and send scan results to the Master Server through an encrypted TCP connection.

Minimum System Requirements

Supported Operating Systems

Environment Operating System
Microsoft Windows Desktop
  • Windows XP
  • Windows XP Embedded
  • Windows Vista
  • Windows 7
  • Windows 8
  • Windows 8.1
  • Windows 10
Microsoft Windows Server
  • Windows Server 2003 R2
  • Windows Server 2008/2008 R2
  • Windows Server 2012
  • Windows Server 2016
  • CentOS 32-bit/64-bit
  • Debian 32-bit/64-bit
  • Fedora 32-bit/64-bit
  • Red Hat 32-bit/64-bit
  • Slackware 32-bit/64-bit
  • SUSE 32-bit/64-bit
  • Ubuntu 32-bit/64-bit
To run a Node Agent, you need a kernel version of 2.4 and above. To view your kernel's version, run uname -r in the terminal.
  • Solaris 9+ (Intel x86)
  • Solaris 10+ (SPARC)
  • AIX 6.1+
  • FreeBSD 9+ x86
  • FreeBSD 9+ x64
  • HP UX 11.31+ (Intel Itanium)

macOS 10.9+ (Intel x86)

macOS Node Agents are available for ER 2.0.18 and above.
To scan macOS without a Node Agent, perform a SSH scan (see Network Storage Locations).

Web Console

To access the Web Console, you must have:

File Permissions for Scans

Agents must have read access to scan Targets, and write access to remediate matches.

Files and directories that the Node Agent cannot access are marked and reported in the Web Console under Inaccessible Locations.