Open Source Python Firewall Software

OpenSnitch is a GNU/Linux port of the Little Snitch firewall. You can launch the GUI from the icon or from the system menu. The daemon will start intercepting connections, prompting you to allow or deny them. If you don't apply an action, after 15 seconds (configurable) it'll apply the default action configured. When you open the GUI, you'll see all the connections and processes that the daemon has intercepted. Double click on a row to view the details of a process, rule, host or user. Once you know which are the common processes, IPs and hosts that your machine is connecting to, you can start creating permanent rules (Duration: always) to deny or allow them. You can also convert temporary rules to permanent by right-clicking on a temporary rule or by double-clicking on it, and then edit it. By default OpenSnitch UI listens on a local Unix socket in /tmp/osui.sock.

Endian Firewall Community (EFW) is a "turn-key" linux security distribution that makes your system a full featured security appliance with Unified Threat Management (UTM) functionalities. The software has been designed for the best usability: very easy to install, use and manage and still greatly flexible. The feature suite includes stateful packet inspection firewall, application-level proxies for various protocols (HTTP, FTP, POP3, SMTP) with antivirus support, virus and spam-filtering for email traffic (POP and SMTP), content filtering of Web traffic and a "hassle free" VPN solution (based on both OpenVPN and IPsec).

MailCleaner Open Source Edition is now discontinued but will continue under the spamtagger project https://github.com/SpamTagger [antispam] MailCleaner is an anti-spam / anti-virus filter SMTP gateway with user and admin web interfaces, quarantine, multi-domains, multi-templates, multi-languages. Using Bayes, RBLs, Spamassassin, MailScanner, ClamAV. Based on Debian. Enterprise ready. MailCleaner is an anti spam gateway installed between your mail infrastructure and the Internet. It includes a complete GNU/Linux OS and a graphical web interface for user and administrative access. It comes in the form of virtual machine templates.. - fully compatible with any SMTP mail server (Exchange, Zimbra, O365,...)

ABANDONED PROJECT. THE PROGRAM DOES NOT WORK BECAUSE THE CHAT SERVERS HAVE CHANGED SINCE THE LAST UPDATE. Program to block League of Legends contacts. When you use it, you will appear offline and you will not be able to write in the picks and bans phase, but yes during the game. REQUIREMENTS: 1 - Windows 10 x64 or higher operative system. 2 - NET Framework 4.7.2 or higher.

Fail2Ban monitors log files like /var/log/pwdfail or /var/log/apache/error_log and bans failure-prone addresses. It updates firewall rules to reject the IP address or executes user defined commands. Please see code and download from https://github.com/fail2ban/fail2ban . SF Fail2ban portal might not be up-to-date

PySocks - a platform independent SOCKS proxy written in Python Do you share an DSL or cable connection between several computers? With PySocks you'll be able to use all features of ICQ, MIRC, Napster and such again!

CompactBSD is a powerful set of tools that allow you to build your own customized, lightweight distribution of OpenBSD and then burn it onto compact flash so that it can be run on an embedded PC platform such as FatPort's FatPoint (www.fatport.com)

pyid, extracts information (in real time) from IPTable`s logs (when modified) and notifies the user for the connections that have been dropped/rejected.

Boundman is an advanced, user-friendly, and sleek application designed to take control over your network connections. It allows you to efficiently manage and block incoming and outgoing traffic for specific .exe files contained within a chosen folder and its subfolders. With its intuitive PyQt5 graphical interface and robust PowerShell scripts, Boundman provides seamless integration with the Windows Firewall for a powerful network management experience.

jennifer is an educational (albiet oddly named) firewall/NAT script generator, written in python, targetted at linux+iptables systems. It is intended to both (a) generate practical and useful configurations, and (b) demonstrate the concepts involved in TO

Log2table allows you to continuously monitor your logfiles. You can trigger actions when a specific message comes in your audited logfiles or when a specific number of occurences are present.

The use of NAT devices all over the Internet has made peer-to-peer exchanges unreliable. The rise of IPv6 should repair this, but it will still not be reliable until all peers have implemented IPv6. Such IPv6 implementation could be arranged on the fly with a tunnel mechanism that does not rely on router co-operation or manual configuration. This specification details such a method of embedding IPv6 into UDP and IPv4. It employs embedded Router Solicitation to configure the tunnel's public IPv6 address, and Neighbor Discovery to try to find the remote peer over more efficient IPv4 routes.

Actim is an application written in python that allows sending/receiving files and calling command lines via email. (under GPL license) For example, if your home PC does not have any access to your office workstation which is behind the company firewall.

Auto Proxy Filter Test (APFT) automates the testing of safe and unsafe URLs against a content filtering proxy (such as Dansguardian) and helps prevent regressions. APFT is useful to people who are designing filter rules.

NOTICE: The format of this project has been changed from ISO to using ansible and has been moved to GitHub. Github link: https://github.com/Bifrozt/bifrozt-ansible

Bunny Proxy is a light web proxy for across filtering.

CacheGuard Gateway is a free and open-source Unified Threat Management (UTM) solution, a Web Application Firewall (WAF), and a Quality of Service (QoS) platform designed to optimize WAN traffic. To obtain a CacheGuard Gateway appliance, download CacheGuard-OS and install it on the bare-metal or virtual machine of your choice. It’s that simple and completely free. The UTM includes a firewall, web antivirus, VPN server, and a URL-filtering and SSL-inspection web proxy. The WAF operates in conjunction with a reverse proxy, web application load balancer, and SSL offloader, and is capable of blocking malicious requests as well as traffic from IP addresses with poor reputations. The QoS manager enables traffic shaping to prioritize critical network flows, load balance multiple WAN links, and cache web traffic.

The Cisco Connection Analyzer will analyze a real time snap shot of your PIX/ASA connection table and tell you useful information about the conn table. It will tell you top talkers, top services..etc. Very useful in troubleshooting the firewall.

DAXFi is a Python package that helps configure several different kinds of firewalls in a consistent way. The rules are described in XML. It comes with a Python package, useful to build other applications and includes some useful example programs.

A daemon that creates realtime dynamic, expirable iptables rules to block/drop IP addresses attempting brute-force breakin attacks on a linux host via ssh or other mechanism. Highly customizable and extensible.

We launched the Firedraw project in order to make a free graphical interface for the Linux Firewall Netfilter(iptables, Kernel 2.4).

FWInit is a simple firewall initialization utility coded in Python with Python configuration scripts with access to useful functions for manipulating the iptables filters and keeping the same state between invocations.

FOSSWALL project is now merged under the Open Source Security Network (OSSN) project. Open Source Security Network is a community who are dedicated to working in different aspects of IT Security, Network Security, Application Security, Email Security etc

FreePFW is a web interface to IPFW firewall on FreeBSD servers. It allows authorized users, from authorized hosts changing *specific* rules at the firewall, granting remote access to the server.

GNOME Blocklist is a GNOME interface and backend for Linux P2P blocklist software like moblock and peerguardian. It provides a preference panel, notification icon and dbus daemon.