IPBan is a FREE and open source application that allows auto banning ip addresses from failed login attempts. Many sources are watched such as SSH, SMTP, SQL-Server, MySQL, RDP and dropped packets.
Firewalld provides a dynamically managed firewall with support for network/firewall zones that define the trust level of network connections or interfaces. It has support for IPv4, IPv6 firewall settings, ethernet bridges and IP sets.

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.
This personal firewall and intrusion detection application provides comprehensive online security. It constantly monitors your PC for intrusion and reports any findings, so you can take the appropriate action.
Cost / License
- Free
- Proprietary
Application types
Alerts
- Discontinued
Platforms
- Windows



Blocks unauthorized network access, detects intruders, prevents data theft, hides computers from threats, stops viruses and spyware, offers easy setup, and real-time alerts.


+1
Application-level network control supporting custom permissions, detailed event logging, zero-day malware blocking, remote management, and portable use.


+3
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.


+1


+2
NinjaFirewall (WP Edition) is a true Web Application Firewall. Although it can be installed and configured just like a plugin, it is a stand-alone firewall that sits in front of WordPress.
OpenContrail is an Apache 2.0-licensed project that is built using standards-based protocols and provides all the necessary components for network virtualization–SDN controller, virtual router, analytics engine, and published northbound APIs.
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.

CacheGuard Gateway is a free, open-source network security appliance for startups, growing businesses, and SMEs/SMBs that need enterprise-grade protection without the complexity or cost.
Cost / License
- Free
- Open Source
Application type
Platforms
- VirtualBox
- Self-Hosted
- VMware vSphere Hypervisor
- Microsoft Hyper-V Server
- Proxmox Virtual Environment



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.


BeeThink IP Blocker is a Windows IP Blocking program which controls one computer interacts with other computers over the network. It can be successfully used on Windows server machines, in a production environment, to easily ban unwanted IP addresses or visitors by country with...

Sophos UTM integrates complete security software within a single appliance. Choose only the protection you need when you need it. And deploy it on the platform that best fits your business: software, hardware or virtual appliance.



Radio Silence lets you block individual apps from accessing the internet. It never throws pop-ups on the screen, and is completely invisible.


SafeLine is a docker-based, easy to use, self-hosted free web application firewall (WAF) that protects web apps by filtering and monitoring HTTP traffic between a web application and the Internet.


+5
All the functionalities of a modern Next-Gen firewall in few clicks: MultiWAN, Deep Packet Inspection, VPNs, Threat Protection.


+4

PC Tools Firewall Plus is a powerful free personal firewall for Windows® that protects your computer by preventing unauthorized users from gaining access to your computer through the Internet or a network.



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.



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. IPCop offers the critical functionality of an expensive network appliance using stock, or even obsolete...







































































