of DansGuardian, joined the company in April 2002, a variant of Corporate Server called Smoothwall Corporate Guardian was released, integrating a fork of DansGuardian called SmoothGuardian. Corporate Guardian is a stand-alone web proxy, cache and filtering solution. SmoothGuardian was also made available as a stand-alone module for Corporate Server customers, replacing the Smooth-Guard module. School guardian was created as a variant of corporate guardian, adding Active Directory/LDAP authentication support and firewall features in a package designed specifically for use in schools. When released on 13 June 2005, version 4 of Corporate Server was renamed to Corporate Firewall. In February 2008, Corporate Guardian was renamed to Network Guardian with the release of the 2008 version. Released on 9 May 2005, Smoothwall Advanced Firewall targeted the enterprise market directly by bundling Corporate Server with all available add-on modules, and adding further functionality, including Active Directory, eDirectory & LDAP authentication and the capability to use up to 20 network interfaces with external connection load balancing. In April 2007, the company released the SmoothGuard UTM-1000 hardware appliance, based on a commodity Intel Core 2 Duo 1U 19-inch rack-mountable chassis. The UTM-1000 came pre-installed with a variant of Smoothwall Advanced Firewall. Awards Reader's vote, Linux Format, Best Security Tool, 2001 Supplier of the Year - Highly Commended, Education Resources Awards, 2017 Cyber Security - Software and Technology Excellence Awards, Worldwide Business Review, 2017 References External links Smoothwall Limited http://www.smoothwall.org Computer Reseller News: Advancing Firewall Protection (2006-01-09) Network Computing: Rollout: Smoothwall's Corporate Guardian 5 (2006-09-28) Information Week: Build This Cheap But Effective Firewall (2007-01-29) X86-64 Linux distributions Firewall software Free routing software Content-control software Gateway/routing/firewall distribution Linux distributions