Apps with 'Gateway' feature

  1. NethServer is a CentOS-based Linux distribution for servers. The product's main feature is a modular design which makes it simple to turn the distribution into a mail server and filter, web server, groupware, firewall, web filter, IPS/IDS or VPN server.
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  2. Zentyal is a native Microsoft Active Directory implementation on Linux incorporating all the network services required in a small and medium business environment: Directory & Domain Server, Mail Server, Gateway and Infrastructure Server.
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  3. ClearOS is a family of operating systems for the enterprise, small business, and home. There are three editions to choose from depending on your needs and suitable to your abilities. They are: ClearOS Enterprise, ClearOS Home, and ClearOS Core.
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  4. Untangle is a platform for deploying network based applications. The platform unites these applications around a common GUI, database and reporting.
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  5. Endian Firewall Community (EFW) is a "turn-key" linux security distribution that turns every system into a full featured security appliance with Unified Threat Management (UTM) functionality.
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  6. Chec is an extendable eCommerce platform and developer API with simple tools to help you deliver beautiful eCommerce experiences. Chec makes selling physical products, digital goods, and services easy and intuitive.
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    • FreeOpen Source
    • Linux
    The SmoothWall Open Source Project was set up to develop and maintain SmoothWall Express - a Free firewall that includes its own security-hardened GNU/Linux operating system and an easy-to-use web interface.

    Discontinued

    The site says the last release was October 2014.

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    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • BSD
    BitlBee brings IM (instant messaging) to IRC clients. It's a great solution for people who have an IRC client running all the time and don't want to run an additional MSN/AIM/whatever client.
    • FreeOpen Source
    • Linux
    IPCop Firewall is a Linux firewall distribution geared towards home and SOHO (Small Office/Home Office) users. The IPCop interface is very user-friendly and task-based.

    Discontinued

    The project seems to be no longer updated. Last version, 2.1.9, released in February 2015, can be still downloaded from the official website.

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    • FreeOpen Source
    • Linux
    The Shoreline Firewall, more commonly known as “Shorewall”, is high-level tool for configuring Netfilter. You describe your firewall/gateway requirements using entries in a set of configuration files.