ClearOS (formerly named ClarkConnect) is a Linux distribution, based on CentOS and Red Hat Enterprise Linux, designed for use in small and medium enterprises as a network gateway and network server with a web-based administration interface. It is designed to be an alternative to Windows Small Business Server. ClearOS succeeds ClarkConnect. The software is built by ClearFoundation, and support services can be purchased from ClearCenter. ClearOS 5.1 removes previous limitations to mail, DMZ, and MultiWAN functions.
As of the ClearOS 6.1 release, the distribution is a full-featured operating system for servers and workstations built from source packages for Red Hat Enterprise Linux.
- Stateful firewall (iptables), networking and security
- Intrusion detection and prevention system (SNORT)
- Virtual private networking (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 CIFS, 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
- August 2009: ClearCenter wins 'Best New Product' at CompTIA Breakaway.
- August 2010: ClearCenter repeats win for 'Best New Product' at CompTIA Breakaway.