ClearOS

Linux distribution

For the Intel Linux distribution, see Clear Linux OS.

Linux distribution

ClearOS

Developer| ClearCenter
OS family| Linux (Unix-like)
Working state| Current
Source model| Open source[1]
Initial release| 2001; 23 years ago (2001)[2]
Latest release| 7.8[3] / 23 June 2020; 4 years ago (23 June 2020)
Kernel type| Monolithic kernel (Linux)
Default
user interface| Web user interface
License| GPL, and others
Official website| clearos.com

ClearOS (also known as the ClearOS System, formerly ClarkConnect[4]) is a Linux distribution by ClearFoundation, with network gateway, file, print, mail, and messaging services.

## History

[edit]

ClearOS is based on CentOS and Red Hat Enterprise Linux,[5] designed for use in small and medium enterprises as a network gateway and network server with a web-based administration interface.[6] It is positioned as an alternative to Windows Small Business Server.[7] ClearOS is the successor to ClarkConnect. The software is built by ClearFoundation, and support services can be purchased from ClearCenter.[8] ClearOS 5.1 removes previous limitations to mail, DMZ, and MultiWAN functions.[9]

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.[10][11][12]

ClearOS aims to replace, as a small business server, Windows SBS.[13]

## Features

[edit]

Features include:[13]

* Stateful firewall (iptables), networking and security
* Intrusion detection and prevention system (SNORT)
* Virtual private networking (IPsec, PPTP, OpenVPN)
* Web proxy, with content filtering and antivirus (Squid, DansGuardian)
* E-mail services (Webmail, Postfix, SMTP, POP3/s, IMAP/s)
* Groupware (Kolab)
* Database and web server (easy to deploy LAMP stack)
* File and print services (Samba and CUPS)
* Flexshares (unified multi-protocol storage which currently employs SMB, HTTP/S, FTP/S, and SMTP)
* MultiWAN (Internet fault tolerant design)
* Built-in reports for system statistics and services (MRTG and others)

## Awards and recognition

[edit]

* August 2009: CompTIA Breakaway — ClearCenter's ClearOS wins 'Best New Product' at CompTIA Breakaway.[14]
* August 2010: CompTIA Breakaway — ClearCenter's ClearOS repeats win for 'Best New Product' at CompTIA Breakaway.[15]
* July 2012: Softpedia — An Open Source, free and powerful network and gateway Linux server operating system[16]
* February 2014: IDG Security Firewall Distributions Review[17]
* June 2015: Small Business Computing — The 5 Best Linux Servers for Small Business[18]
* September 2015: LinuxVoice Service Distro — Group Test (see pages 58-63)[19]

## See also

[edit]

* Free and open-source software portal

* Windows SBS
* ClarkConnect
* SmoothWall
* m0n0wall
* SME Server
* Zentyal
* ClearFoundation

## References

[edit]

1. ^ "ClearFoundation SVN". Archived from the original on 2020-10-07. Retrieved 2010-10-03.
2. ^ clarkconnect.org recycle a tired old computer into an Internet gateway
3. ^ Tyler Randolph. "ClearOS Server 7.8 Community Edition Released".
4. ^ A Linux server OS that's fiddly but tweakable • The Register
5. ^ "DistroWatch: ClearOS".
6. ^ "ClarkConnect Is Now ClearOS".
7. ^ "Linux answer to Windows SBS: ClearOS". Archived from the original on 2009-12-07. Retrieved 2009-12-20.
8. ^ "Overview". ClearCenter. Archived from the original on 2009-08-08. Retrieved 2012-05-24.
9. ^ "Dual WAN Clarkconnect Community". Archived from the original on 2011-07-08. Retrieved 2010-10-03.
10. ^ "DistroWatch: Development Release - ClearOS 6.1 Alpha 1".
11. ^ "ClearFoundation: ClearOS Core 6.1 Alpha1". 6 June 2011.
12. ^ Linux Small Business Server Distros » Linux Magazine
13. ^ a b The Small Business Server Replacement is Clear(OS) | Linux Magazine[usurped]
14. ^ "Breakaway 2009 Best New Product Winner - ClearCenter".
15. ^ "Best of Breakaway 2010 Awards".
16. ^ "An Open Source, free and powerful network and gateway Linux server operating system". 5 May 2019.
17. ^ Mills, Ashton. "Security firewall distributions". IDG (CSO Online). Archived from the original on 2014-08-03. Retrieved 2016-06-29.
18. ^ Schroder, Carla (June 22, 2015). "The 5 Best Linux Servers for Small Business".
19. ^ "Server Distros Group Test" (PDF). LinuxVoice Magazine. LinuxVoice. Archived from the original (PDF) on 2016-08-22.

## External links

[edit]

* Official website
* ClearOS at DistroWatch
* Clark Connect at DistroWatch
* clarkconnect.com
* clarkconnect.org recycle a tired old computer into an Internet gateway
* PointClark Networks
* ClarkConnect becomes ClearOS
* ClearFoundation
* ClearCenter

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