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ClearOS logo.png
Developer ClearCenter
OS family Unix-like
Working state Current
Source model Open source[1]
Latest release 7.4[2] / November 3, 2017; 10 months ago (2017-11-03)
Kernel type Monolithic kernel (Linux)
Default user interface Web user interface
License GPL, and others
Official website

ClearOS (also known as the ClearOS System, formerly ClarkConnect[3]) is an operating system marketed by the software company ClearCenter. It is based on CentOS and Red Hat Enterprise Linux,[4] designed for use in small and medium enterprises as a network gateway and network server with a web-based administration interface.[5] It is positioned as an alternative to Windows Small Business Server.[6] ClearOS succeeds ClarkConnect. The software is built by ClearFoundation, and support services can be purchased from ClearCenter.[7] ClearOS 5.1 removes previous limitations to mail, DMZ, and MultiWAN functions.[8]

As of the ClearOS 6.1 release, the distribution is a full-featured operating system for gateway, network and servers built from source packages for Red Hat Enterprise Linux.[9][10][11]


Features include:[12]

Awards and recognition[edit]

  • August 2009: CompTIA Breakaway — ClearCenter's ClearOS wins 'Best New Product' at CompTIA Breakaway.[13]
  • August 2010: CompTIA Breakaway — ClearCenter's ClearOS repeats win for 'Best New Product' at CompTIA Breakaway.[14]
  • July 2012: Softpedia — An Open Source, free and powerful network and gateway Linux server operating system[15]
  • February 2014: IDG Security Firewall Distributions Review[16]
  • June 2015: Small Business Computing — The 5 Best Linux Servers for Small Business[17]
  • September 2015: LinuxVoice Service Distro — Group Test (see pages 58-63)[18]

See also[edit]


External links[edit]