Of further interest:

White paper - NeXpose Vulnerability Management
NeXpose Datasheet

NeXpose System Requirements

The NeXpose Security Console and the NeXpose Scanning Engine can run on two separate machines or on one together. In either case, the following are the requirements of any machine which is to run one or both components:

Recommended System Requirements

Dedicated server with no IPS/IDS/Virus Scanning
2 GHz processor and later (1 GHz minimum)
2 GB RAM (1 GB minimum)
80 GB + available disk space (10 GB minimum)
Gigabit Network Interface Card

Windows

MS Windows Server 2000
MS Windows Server 2003

NeXpose is not supported on Windows XP SP2 due to restriction in accessing raw sockets. See http://support.microsoft.com/kb/897656 for more information.

Linux

RedHat Enterprise Linux (EL3 & EL4)
SUSE 9.x & 10.x
Fedora Core 4 & 5
Ubuntu 6.06
Debian 3.1