ClearOS is a Linux firewall distribution, based on CentOS and Red Hat Enterprise designed for use in small and medium enterprises. ClearOS is based on CentOS and Red Hat Enterprise Linux, which is designed to be deployed in small and medium businesses as a Gateway & Server with an intuitive graphical web based user interface.
ClearOS Community Edition is an open source Linux server operating system intended for Linux experts and hobbyists.
Although ClearOS can be virtualized like an ordinary operating system, a 'real firewall' should always run on physical hardware, as network performance makes the difference. See below our hardware recommendation for ClearOS.
ClearOS hardware - requirements
Minimum, not officially
- CPU: 1 GHz
- RAM: 1 GB
- Hard disk: 10 GB
- Network: 2x Ethernet
ClearOS hardware - recommended
Our recommendation from 2020
- CPU: 1.5 GHz multi core, 64-bit
- RAM: 4 GB
- Hard disk: 120 GB SSD
- Network: 3x Gigabit Ethernet
The hardware we offer is tested for compatibility with ClearOS, as shown below. The table below shows the throughput values with associated CPU and network adapters measured after the default installation.
Hardware compatibility test & Throughput mit ClearOS
Firewall Hardware Appliance with Intel CPU J4005 2x2.0-2.7GHz, (Option: J4105, J4125) AES-NI, as 19 inch 1U or full aluminium chassis for your firewall & VPN OS, 3-5 GBit NIC's
Test-Device
SBR234
CPU
Intel J4005
Network Gigabit
Intel 82576
Throughput
940 Mbit/s
With Intel powerful CPU G6400 2x4GHz (option on i3, i5, i7), 4GB DDR4 RAM (max 32GB), 120GB SSD SATA3 HDD, 19 inch 1U or full aluminum chassis, 3-5 GBit or 10Gbit network cards
Test-Device
SBR741
CPU
Intel G6400
Network 10Gbit
Intel X550-T2
Throughput
9.08 Gbit/s
Quad Xeon (E-2124 4x3.3 GHz) firewall Hardware Aappliance, 19inch 1U Rack Version, 6 Intel Gigabit NICs, 4GB DDR4 ECC RAM (max 32GB)
Test-Device
SBR706
CPU
Intel E3-1220V6
Network 10Gbit
Intel X550-T2
Throughput
9.40 Gbit/s
ClearOS can be installed on any compatible hardware, if desired we will install the software before the delivery. We optionally install
pfSense,
OPNsense,
IPfire,
ClearOS,
RouterOS in addition to ClearOS.
The hardware is mostly compatible with other Linux and FreeBSD operating systems like: Endian, Smoothwall, IPcop, CentOS, Sophos, Untangle, Ubuntu, Debian, openSuse, Red Hat, Fedora and more.
By default firewall hardware is available as mini desktop aluminium case and rack version 19 inch 1U, see pictures.
ClearOS Hardware - Rack 19inch 1U 483x250x44mm

ClearOS Hardware - Mini-PC 211x254x86mm, aluminium case
Before you order the hardware, you can
configure it with more: RAM, CPU, hard disks, network adapters etc. For your questions, for an individual PDF offer
write us.