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  2. iptables - Wikipedia

    en.wikipedia.org/wiki/Iptables

    iptables is a user-space utility program that allows a system administrator to configure the IP packet filter rules of the Linux kernel firewall, implemented as different Netfilter modules. The filters are organized in a set of tables, which contain chains of rules for how to treat network traffic packets.

  3. Netfilter - Wikipedia

    en.wikipedia.org/wiki/Netfilter

    They provide a table-based system for defining firewall rules that can filter or transform packets. The tables can be administered through the user-space tools iptables, ip6tables, arptables, and ebtables. Notice that although both the kernel modules and userspace utilities have similar names, each of them is a different entity with different ...

  4. Comparison of firewalls - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_firewalls

    Barracuda Firewall Proprietary: Included Firewall Next Generation appliance Windows-based appliance embedded firewall distribution Cyberoam: Proprietary: Included Firewall Sophos appliance Windows-based appliance embedded firewall distribution D-Link: Proprietary: Included Firewall DFL Windows-based appliance embedded firewall distribution ...

  5. firewalld - Wikipedia

    en.wikipedia.org/wiki/Firewalld

    It provides firewall features by acting as a front-end for the Linux kernel's netfilter framework. firewalld's current default backend is nftables. Prior to v0.6.0, iptables was the default backend. [3] Through its abstractions, firewalld acts as an alternative to nft and iptables command line programs.

  6. Uncomplicated Firewall - Wikipedia

    en.wikipedia.org/wiki/Uncomplicated_Firewall

    Uncomplicated Firewall (UFW) is a program for managing a netfilter firewall designed to be easy to use. It uses a command-line interface consisting of a small number of simple commands, and uses iptables for configuration. UFW is available by default in all Ubuntu installations since 8.04 LTS. [1]

  7. nftables - Wikipedia

    en.wikipedia.org/wiki/Nftables

    This speeds up firewall configuration changes for setups having large rulesets; it can also help in avoiding race conditions while the rule changes are being executed. nftables also includes compatibility features to ease transition from previous firewalls, command-line utilities to convert rules in the iptables format, [15] and syntax ...

  8. List of router and firewall distributions - Wikipedia

    en.wikipedia.org/wiki/List_of_router_and...

    Windows Routing and Remote Access Service is a feature that can be installed on Windows (mainly server) Operating Systems, and can perform routing functions, NAT, and implement firewall rules. Zentyal (formerly eBox Platform) Active: Ubuntu derivative: x86, x86-64: Open source: Free with paid services available

  9. FireHOL - Wikipedia

    en.wikipedia.org/wiki/FireHOL

    FireHOL first parses the configuration file and then sets the appropriate iptables rules to achieve the expected firewall behavior. It is a large, complex BASH script file, depending on the iptables console tools rather than communicating with the kernel directly. Any Linux system with iptables, BASH, and the appropriate tools can run it.