iplist is a Linux application for blocking connections to and from a specified range of hosts using the netfilter netlink-queue library. iplist is an open source IP filtering program similar to PeerGuardian .
Platforms
- Linux




iplist is a Linux application for blocking connections to and from a specified range of hosts using the netfilter netlink-queue library. iplist is an open source IP filtering program similar to PeerGuardian .




Firewall WITHOUT ROOT. Host name/domain name filtering, simple interface, fine-grained access control and no suspicious permissions on the firewall app itself.



ModSecurity is an open source web application firewall. Working embedded in the web server, or standalone as a network appliance, it detects and prevents attacks against web applications.
Scrollout F1 is a free self-hosted email gateway designed for Linux & Windows administrators without advanced email security experience.

FortKnox Firewall is personal firewall solution that allows you to protect a PC against hacker attacks, trojans, spyware and internet threats. It has built-in Intrusion Prevention System and SPI technologies for extended user protection.




VASCO Data Security is a leading supplier of strong authentication and e-signature solutions and services specializing in Internet security.



Next Generation Cyber Security. Strong online protection for you – on all of your devices.




Sygate Personal Firewall is a bit old but good firewall for Windows. It uses very small amount of system resources and is quite robust.
The project is now abandoned because Symantec Corporation, on October 10, 2005, acquired Sygate Technologies, so Sygate Personal Firewall ha.


Wallix Pro Firewall prevents intruders from accessing your computer and that’s the main objective for a computer firewall. It automatically detects and blocks attacks through a comprehensive examination of all inbound and outbound information to your computer.

Linux based gateway for SMB with accent on security. With easy to use web-based configuration tool. With lots of additional features like mail server, VPN server, traffic shaping, DPI, traffic antivirus and etc.




OneClickFirewall is a small app which will give you the ability to block any app from accessing the Internet. It integrates with the Explorer context menu.

Check Point is a leader in network security software, firewall solutions, VPN solutions, endpoint security, network protection, security management, data protection and Pointsec data encryption technologies.
IPQ BDB filtering is done by a user space netfilter daemon that issues verdicts after looking up the IP address in a Berkeley DB. The fuzzy blocking model, freely inspired by STOCKADE, is designed to block non-distributed dictionary attacks and mitigate spam.
System Shield has a variety of tools that cover every aspect of PC security. These tools can make sure you’re safe on the Internet, and that your files won’t fall into the wrong hands. Here are the ones that make this happen:

Armor2net personal firewall software stops hackers, data thieves, and protects your PC from Internet-borne threats. Armor2net firewall can meet your requirements for Internet security and Internet privacy.

Vulture is an application firewall that supports HTTP/2, detects behavioral anomalies and protects your web applications from Internet attacks.
Built to react fast in server farms environments (ISPs, HSPs, organisations...) Hookem-Banem is a log monitoring system which monitors logs being sent to a central server (syslog, file...) and on detection of malicious intent (repeated login failures, many failed RCPT commands...
Defensia is a lightweight security agent for Linux servers that detects and blocks real attacks in real time — without complex configuration.




Simple Firewall is a Windows firewall management software, it can manage internet access for all apps on the PC.

Your Microsoft Windows servers are probably under constant attack and you may not even know it! Chances are if your hosting remote desktop, or other services such as Microsoft exchange, FTP, HTTP, HTTP’s or SQL. Your server is likely getting bombarded with failed login attempts.