Open Source Java Networking Software for Linux

Angry IP scanner is fast and friendly network scanner for Windows, Linux, and Mac. It is very extensible, allowing it to be used for very wide range of purposes, with the primary goal of being useful to network administrators.

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.

Open source cross-platform (Windows/Linux/Mac) Java Visual Traceroute. Data is displayed in a 3D or a 2D map component. What is a traceroute? http://en.wikipedia.org/wiki/Traceroute If you need some help, please first check http://visualtraceroute.net/ Feel free to drop by and leave a comment on the Facebook page https://www.facebook.com/openvisualtraceroute Enjoy and share! If you want to support the development of this project, you can make a Paypal contribution at leo.lewis.software@gmail.com

jpcap is a set of Java classes which provide an interface and system for network packet capture. A protocol library and tool for visualizing network traffic is included. jpcap utilizes libpcap, a widely deployed system library for packet capture.

OpenAS2 is a java-based implementation of the EDIINT AS2 standard. It is intended to be used as a server. It is extremely configurable and supports a wide variety of signing and encryption algorithms. Supports very high traffic volume allowing parallel processing of files per partner. SUPPORT: Please use the Github issues and Discussions channels here: https://github.com/OpenAS2/OpenAs2App/ Requirements: - Java 11 or newer (tested with the LTS versions of Java up to 21) - Any OS that runs Java Planned enhancements in the next major release: - User interace configuration GUI - Certificate Exchange Management IMPORTANT: Java 8 is no longer supported.

Untangle is a Linux-based network gateway with pluggable modules for network applications like spam blocking, web filtering, anti-virus, anti-spyware, intrusion prevention, bandwidth control, captive portal, VPN, firewall, and more. Visit http://untangle.com

An Enterprise-Grade Network Management Application Platform that is 100% Free and Open Source Software.

This project now hosts the third-generation of Java SSH API, Maverick Synergy. This API builds on the Maverick Legacy commercial APIs and delivers a new API in a unified client/server framework. This API is available to the community under the LGPL open source license. This update includes ed25519 support, support for the new OpenSSH private key file format and stronger key exchange algorithms. The project continues to host both the original API and legacy applications created around it, however, these are now considered deprecated and we do not recommend their use in anyway.

Fast Android Networking Library is a powerful library for doing any type of networking in Android applications which is made on top of OkHttp Networking Layer. Fast Android Networking Library takes care of each and everything. So you don't have to do anything, just make a request and listen for the response. The recent removal of HttpClient in Android Marshmallow(Android M) made other networking libraries obsolete. No other single library does and everything like making requests, downloading any type of file, uploading file, loading images from the network in ImageView, etc. There are some libraries but they are outdated. No other library provides a simple interface for doing all types of things in networking like setting priority, canceling, etc. As it uses Okio , No more GC overhead in android applications. Okio is made to handle GC overhead while allocating memory. Okio does some clever things to save CPU and memory.

TinyRadius is a small, fast and reliable Java Radius library capable of sending and receiving Radius packets as specified by RFC 2865/2866. TinyRadius is not a fully-fledged Radius server, but helps you to implement Radius services in your application.

Pure Java Network Tools. Free portable cross-platform. Include: 01) ICMP-ping, 02) ICMP-traceroute, 03) DNS-check resolver, 04) Parallel Host TCP-scanner, 05) IP-calculator, 06) Syslog-server, 07) Telnet-client, 08) Local ARP-cache request, 09) Parallel Network Ping-Scanner, 10) Snmp-Get concrete value utility. 11) Parallel ICMP flood utility. 12) Parallel UDP flood utility. 13) TFTP-server. 14) NTP-server. 15) Host TCP-ping. 16) SNMP-MRTG traffic monitor. 17) Anonymous FTP-server. 18) Parallel Network TCP-scanner. 19) Parallel Network SNMP-scanner. 20) Parallel Network DNS-scanner. 21) Parallel SNMP-DoS. 22) Parallel HTTP/HTTPS-DoS Need JRE-1.8: https://www.oracle.com/java/technologies/javase/javase8-archive-downloads.html . Source - https://github.com/harp077/pj-net-tools . If you like this - put a star on https://github.com/harp077/pj-net-tools

Pure Java TFTP server. Free, portable, cross-platform. Fully multi-threaded. Implements RFC 1350. Run as root/admin in cmd-mode with cmd argument = path to folder, for example: java -jar pj-tftp-server.jar /tmp .Need JRE-1.8. Source - https://github.com/harp077/pj-tftp-server If you like this - put a star on https://github.com/harp077/pj-tftp-server/ for support project please.

https://github.com/subhra74/snowflake Snowflake is a graphical SSH client. It has a file browser, terminal emulator, resource/process manager, disk space analyzer, text editor, log viewer and lots of other helpful tools, which makes it easy to work with remote servers. It runs on Linux and Windows. Snowflake has been tested with Ubuntu server, CentOS, RHEL, OpenSUSE, FreeBSD, OpenBSD, NetBSD and HP-UX

NetTool is a developer tool for monitoring and manipulating application-level network messages, particularly useful for debugging web applications and web services. There are two components to NetTool: the HTTP Client, and the TCP Tunnel.

Prota is a reference implementation for an open source "3D web" protocol.

Pure Java FTP server. Free portable cross-platform. Run as root/admin ! 1) Fully multi-threaded. 2) Multi platform support. 3) Can run in GUI-mode: # java -jar pj-ftp-server.jar 4) Can run in CMD-mode (used cmd-mode-config.properties): # java -jar pj-ftp-server.jar cmd 5) IP-filter (access list) support. 6) Writable=true/false support 7) Support listening on different local interfaces 8) Speed limit support 9) Anonymous-mode support 10) Different TCP-ports support 11) Logging support 12) Support limit max concurrent logins 13) Support limit max concurrent logins per IP 14) Need JRE-1.8: https://www.oracle.com/java/technologies/javase/javase8-archive-downloads.html Source = https://github.com/harp077/pj-ftp-server If you like this - put a star on https://github.com/harp077/pj-ftp-server/ for support project please.

This tool check every x seconds your public ip adress, if it changes (vpn fall down for example) it stops one or several programs. When the VPN crash this tool can send a mail, play a sound. - This tool work on Windows and Linux. - You need to install JAVA 1,8 on your operating system - Download checkvpn.zip and unzip it - Double click on checkvpn.jar - Click on the button « Update ip » when the VPN is stopped to get your public ip address. - Type the programs separated by semicolon that you would like to stop when the vpn is falling down (ex: utorrent.exe;firefox.exe on linux just put « firefox » no extension) - Click on start button and the program will check every x seconds your ip address, if it not the vpn's ip the programs will be stopped by this tool. - The option « auto start » start the process automaticaly. - The ip adress is geolocalized via MaxMind the web site http://check.vpn.free.fr

(Media Tester) Is a Multicast Monitoring Tool This project used to Monitor Multicast Streams, Bit rate, Alarms, Reports, Video Recording, http://media-tester.sourceforge.net

MySnmpCrawler is a SNMP agent using JMX technology. It contains a lightweight SNMP protocol adaptor, MIB database, and a framework for developers to reuse the design such that new JMX MBeans can be easily built based on the specifications in the MIB file

The Palantir project aims to monitor network health through agents distributed across the network. Each Palantir Agent monitors and tests the network from an enduser point of view and transmits the results to a central facility for analysis.

The Internet Protocol Address Calculator is an open-source java-based tool. This calculator will assist network administrators to perform calculations over both IPv4 and IPv6 address space. A handy whois search client is also integrated into this tool.

Java and ColdFusion libraries to lookup country code and language from IP address. It uses a local copy of the WHOIS database to perform fast, accurate lookups of country codes. Useful for log analysis, internationalization, geolocation, etc..

JRF is a client/server application that allows to extend local storage to other computers running the JRF Server. It has been designed for ultra-simplicity, **not for security!** It does not request for authentication when accessing files on a remote server, nor does it prevent access to files or directories. It has been designed for already-secured networks (e.g. LANs or inside VPNs), where file-sharing setup is tedious (or impossible). Basic access configuration/restriction should be performed on the OS, by changing rights of the user running the JRF Server. It is like an insecure FTP-like file sharing runnning on a single TCP port. Its Java nature gives Java programmers access to remote files as remote `InputStream` and `OutputStream`, with the added value of optionally **compressing data exchange** to ease up network usage.

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.

Linuxlord is a client/server architecture to enable web based thin client computing using Linux. After installing Linuxlord you are able to login your linux desktop from everywhere via an java applet running in your web browser.