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Knocker is a simple, versatile, and easy-to-use TCP security port scanner written in C, using threads. It is able to analyze hosts and the network services which are running on them. It is available for Linux, FreeBSD, Unix, and Windows95/98/2000.
A free, fully open-source application firewall for macOS 10.13 High Sierra and later. Allows real-time monitoring of network connections being made by applications, and blocking/allowing of these per app by user. Supports use of hostname lists (Energized Blu etc) to block known tracker and advertising domains for all apps. Also allows blocking of all network connections for specified apps, blocking of all connections except for specified whitelisted connections, use of pre-configured lists...
A powerful network security tool, easy, safe and totally free.
...) with version 2.24, which is led by "Claudio" and "Marcelo - Brazil", running only on floppy disks, and being 2.30.1 the last version with this support . The following versions, as well having automatic detection of network cards, only run on large capacity media, such as hard disk (HD).
Versions in Development:
* 2.33.x: Uses kernel 2.4.x and is developed by Marcinho Samurai.
* 3.x: Uses kernel 4.x and is developed by WoshMan
PeerGuardian - a privacy oriented firewall application
PeerGuardian is a privacy oriented firewall application. It blocks connections to and from hosts specified in huge blocklists (thousands or millions of IP ranges). Its origin seeds in targeting aggressive IPs while you use P2P.
PeerGuardian Linux:
Not developed actively anymore. Team might still be around. Some unreleased changes on git. Outdated technology.
Peerguardian OS X:
Not developed anymore. We've lost contact with the OS X developer.
PeerGuardian Windows:
Not developed...
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Firewall Builder is a GUI firewall management application for iptables, PF, Cisco ASA/PIX/FWSM, Cisco router ACL and more. Firewall configuration data is stored in a central file that can scale to hundreds of firewalls managed from a single UI.
A message from project maintainers:
After working on Firewall Builder for many years it is with some sadness that Vadim and I are announcing that we have suspended all development activity for this project. Firewall Builder has been a great...
Net-Policy is a highly-scalable, role-and-policy based network management system. Net-Policy aims to be an easy-to-use, full-fledged management station capable of configuration, monitoring, and notification collection and aggregation via the use of SNMP
Anoubis is a Security Suite which implements a secured environment for applications. The core of the suite is an Application Firewall alongside with a Sandbox. Mechanisms to assure the authenticity of files, directories and applications are provided.
LogCop is a set of turn-key bash/firewall/awk scripts for enhancing an IDS. It monitors system logs and blocks IP addresses based on such criteria as illegal user names from repeated attacks. In production under Linux, FreeBSD, OS X, Solaris.
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The Knock Project is a collection of security tools providing increased client/server authentication. The server and its functionality is provided by the netfilter kernel interface. Included are the daemon, a GNU/Linux client and a Windows client.
The goal of WallFire is to build a very general and modular firewalling application based on netfilter or any kind of low-level framework. It will provide a multi-language API, command line and interactive tools as well as X11 or HTML front-ends.
Development area for GNU/Linux 2.6.x for the KS8695 ARM SoC. Covers kernel patches, drivers for serial, Ethernet, PCI, GPIO, watchdog subsystems, and drivers for optional PCI based devices such as USB, WiFi, WiMAX, IPSec, SSL, and RSA devices.
links2world Firewall is a simple tool writen in C, that helps you generate iptables rules for Linux 2.4.x and newer kernels. Very easy to configure, it is designed to run on hosts with one or more network interfaces.
Live Security/Forensics Linux Distribution, built from scratch and packed full of tools useful for vulnerability analysis, penetration tests, and forensic analysis.
Provide secure, quality, user-friendly and fail-proof access to internet manager for IPTABLES-DENY-ALL-based Linux configuration of firewall, including traffic and time accounting, logging, auto-disconnection.
Software for i-net clubs and caffee admins
ISO 17799 - Code of practice for information security management. Creation of methodology and documentation for audit adapted to ISO. One is made up of an introduction on general aspects of the security of the information.
ipflow package is intended to help network administartors log, analyze account and monitor traffic in their routing domain or particular host. Both plaintext and syslog facilities will be used for that as well as MySQL support. There will be PHP web inter
Visual Firewall Monitor is a linux kernel module that monitor new connections coming in/out linux box then notify user of them. When user receive connection's informations, they will use an user-space interface to control the module to accept or drop it.