Developers Documentation



301 error for file:

User Tools

Site Tools

System Requirements

The general hardware requirements and recommendations are summarized in the following table.

Minimum Requirements

Base Hardware
Processor/CPU Up to 16 processors
Memory/RAM At least 512 MB is recommended (see guidelines below)
Hard Disk At least 2 GB is recommended (see guidelines below)
CD-ROM Drive Required for CD installation only
USB Required for USB key installation only
Video Card Almost any video card
Floppy Drive Not required
Sound Card Not required
Mouse Not required
Monitor and Keyboard Required for installation only
Broadband Ethernet, cable, DSL
Network Cards A network card is required, two for gateway mode

Hardware Requirements

The following are guidelines for estimating the right hardware for your system. Keep in mind, the hardware required depends on how you use the software. For instance, a heavily used content filter requires more power than a system running a simple firewall.

RAM and CPU 5 users 5-10 users 10-50 users 50-200 users
Processor/CPU 500 MHz 1 GHz 2 GHz 3 GHz
Memory/RAM 512 MB 1 GB 1.5 GB 2 GB
Hard Disk
Hard Disk Installation and logs require 1 GB - optional storage is up to you
RAID Recommended for mission critical systems

The following software modules are processor and memory intensive:

  • Intrusion Detection and Prevention
  • Content Filtering
  • Webmail
  • Antispam
  • Antivirus

Network Cards

PCI Network Cards

Generally, ClearOS does a good job at auto-detecting hardware and most mass-market network cards are supported. We recommend avoiding the latest available hardware since drivers may not yet be available.

Wireless Network Cards

Though wireless card drivers are included in ClearOS, wireless is not officially supported. Currently, we recommend purchasing a dedicated wireless router for your network.

Internet Connection

ClearOS supports most DSL (including PPPoE) and cable modem broadband Internet connections.

Cable and Standard Ethernet

Cable and standard Ethernet connections are supported.


During the installation process, you will be asked which type of DSL service you use - PPPoE or Standard. These are mutually exclusive implementations, so you will need to select the correct type during installation. It is very important to know how your Internet service provider configures your network. If you are not sure, ask the ISP's technical support staff before you begin.

ISDN and Satellite

We do not support ISDN or satellite broadband service providers unless they terminate with a standard Ethernet connection.

RAID Support

content/en_us/5_system_requirements.txt · Last modified: 2015/03/02 08:39 (external edit)