Open Source Java Firewall Software

The UPnP PortMapper can be used to easily manage the port mappings/port forwarding of a UPnP enabled internet gateway/router in the local network.

Source: https://github.com/AlizerUncaged/HTTP-Injector respite is a SSH/openVPN client that allows you to connect to the internet with custom injected HTTP Proxy headers. This application requires Java (https://www.java.com/en/download/) and .Net 4.5 (https://www.microsoft.com/en-ph/download/details.aspx?id=42642 .Net 4.5 is already preinstalled in Windows 10). There are many SSH and OpenVPN Server providers in the internet, one is https://www.tcpvpn.com HTTP Proxy responses override (source code): https://github.com/AlizerDoesJava/respite-proxy-override Please rate, any feedback is appreciated. The application and server providers are free.

A java wrapper for popular "libpcap" and "WinPcap" libraries. Accurate full API translation. Packet buffers delivered with no copies. Send custom packets, gather statistics. Comprehensive and easily extensible DPI engine.

SonicReader is used to view and save reports of the internals of a Sonicwall Configuration file. This is useful for those people that wish to know the settings within their saved Sonicwall Configs. I have no affiliation with Dell Sonicwall. Please do not contact Dell Sonicwall regarding the use of this program.

iplist is a list based packet handler which uses the netfilter netlink-queue library (kernel 2.6.14 or later). It filters by IP-address and is optimized for thousands of IP-address ranges.

Windows Port Knocking. A Windows implementation of port knocking developed to work alongside an existing firewall (the free CHX-I Packet Filter v3.0).

VTD-XML is the next generation XML parser/indexer/editor/slicer/assembler/xpath-engine that goes beyond DOM, SAX and PULL in performance, memory usage, and ease of use.

SOCKS Server and Library for Java. Support for versions 4 and 5 of SOCKS protocol. Designed to be easily expandable to support different encryption/authentication/authorization methods. Sample server and client are available.

MultiGate is a multi-function security gateway (firewall). Built on Linux and Open Source components, it provides an easy and integrated solution designed to secure and protect networks via SecurityPlugins that enhance the capabilities of the gateway.

This program is intended to be used by Network Administrators. It is used to test connectivity on specific ports. THis program returns a simple pass or fail. Java 6 is required.

winKnocks is an encrypted(DES) port knocking tool. Knock sequences are defined through XML files; users specify: number of packets of each knock sequence, payload and header of each packet. Logging capability. Generation of smoke packets.No replay-attack

Java-based Open Source WAF (Web Application Firewall) to include inside a web application in order to protect it against attacks like Cross-Site Request Forgery (CSRF), Parameter Manipulation and more.

Reduce employee personal Internet usage during the working day. Increase respect of your corporate Internet usage policy, provide open and honest feedback such as WebMail use during work hours. Plugs into an existing proxy or firewall such as Squid.

BadTuxWall will help you to implement your own firewall on a Linux operating system using an efficient graphical user interface. It also allows you to generate iptables scripts, export them and share them with friends.

IceIDS is heuristic Network Intrusion Detection System (NIDS) based on calculating Student's distributions of network traffic.

A portsentry clone written in java designed to run on any platform. You be able to give CLI for blocking access after detection (ie. shell, cmd, bat, etc..), Customizable for all ports on UDP,TCP

Java Port Mapping between 2 hosts. Put up a server on your local network and share it with the outside network in a secure way. A \"server proxy\" network tool. Share one IP with multiple servers.

A lightweight, compact, stand-alone, platform-independent application to forward TCP (over IPv4 or IPv6) connections to another host. Possible uses include - but not limited to - firewall hacking, tunneling, proxying, fortifying ADSL, creating multi-plat

Netfilter tracker is a tracking tool for iptables logs, similar to Checkpoint(tm) Smartview Tracker. Includes storage in an embedded SQL database and a graphical application (viewer) to access filtered data.

OSA::net project main goal is to create an extensible, scalable framework for management of security related devices in middle-sized and large computer networks.

This is an open source port mapper written in java nio no-blocking socket model. Open Port Mapper allows multiple ports mappings, and it provides the functionality of specifying allow list and deny list.

It moves by itself inside networks like virus infection & plagues, it is being written to solve computer virus problem drastically and responsibly. It is legal, free and open for public domain to improve W3 ICT Security.

CartoReso intends to facilitate enterprise computer network mapping.

The EmailWebBrowser allows users to request and receive web pages through email, even those that would be normally blocked by the user's network.

Server/client suite which provides per-user access control/firewall/QOS. Robust and high speed implementation is secure against MAC/IP spoofing, and can scale to large networks with many clients. Options for additional monitoring and captive portal.