Netfilter software comprises iptables, ipset, conntrack-tools, libnetfilter and more. It is the core of Linux firewalls and NAT. It consists of a set of hooks inside the Linux kernel and a number of utilities to manage callback functions.
Bouncer App Alternatives
Bouncer App is described as 'Bouncer is an application to help you choose the correct firewall zone for wireless connections. When you connect to a new network, Bouncer will open a window prompting you for what kind of network (eg home, public, work) it is' and is an app. There are more than 25 alternatives to Bouncer App for a variety of platforms, including Windows, Linux, Mac, Android and Self-Hosted apps. The best Bouncer App alternative is Portmaster, which is both free and Open Source. Other great apps like Bouncer App are simplewall, Fort Firewall, NetLimiter and TinyWall.
Alternatives list
- 12 netfilter alternatives
Provides two-way firewall protection by blocking unauthorized network access, detecting intrusions, hiding devices from threats, stopping viruses, spyware, and data theft, offering real-time alerts, customizable rules, and simple setup with light system impact.


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Perfects the Windows Firewall offering additional security. Get the most out of your Windows firewall, create new security rules for your online applications, alerts you to anomalies with real-time protection.


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SpyShelter is an effective and easy-to-use security application that helps you to protect your system against known and unknown malware.



Karma Firewall app lets you take control back of your phone and block internet traffic to and from specific apps. This is a simple yet powerful firewall with an easy to use intuitive GUI which allows you to protect your sensitive data.

SterJo NetStalker is innovative and FREE security software able to detect all authorized and unauthorized connections to your computer and send you alert for each new connection.

All the functionalities of a modern Next-Gen firewall in few clicks: MultiWAN, Deep Packet Inspection, VPNs, Threat Protection.


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Firestarter is an Open Source visual firewall program. The software aims to combine ease of use with powerful features, therefore serving both Linux desktop users and system administrators.



Cost / License
- Free
- Proprietary
Platforms
- Linux

Centralized manager for Open Source firewalls
Automate certain administrative tasks All your firewalls are accessible in 1 click Auto-connect your firewalls to DynFi Manager pfSense® and OPNsense® compatible manager.
Cost / License
- Free Personal
- Open Source
Application type
Platforms
- Mac
- Windows
- Linux
- Self-Hosted
- Software as a Service (SaaS)
Murus is a frontend for the OS X PF network firewall. From basic filtering to advanced proactive options, Murus allows to easily configure a complex network setup dragging and dropping icons and moving sliders and selecting checkboxes.


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