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A simple port-relaying program written in Java; sits on specified ports for either TCP or UDP, re-sends packets to the given IP. Doesn't forward packets, actually receives and re-sends them. Could be handy to learn Java Sockets/networking. Public Domain.
Minimal HTTP proxy written in Python. Mostly useful as debugging tool for HTTP traffic inspection. Asynchat-based, handles multiple connections in single thread.
netleak is a collection of small perlscripts that detects connectivity between network segments. It is mostly useful to detect "leaks" in large organizations that have private network segments physically separated from the Internet.
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General line based buffer with backlog written in "C". It supports multiple input and a single output. I/O modules: TCP/IP, UDP/IP, Unix sockets, File/Pipe. It supports backlog writing (and resume) so a failsafe transport-buffer can be build.
A replacement firmware distribution for the 3com 3CRADSL72 a.k.a 3com wireless 11g (distributed by Ya.com) and its identical twin, the SMC7804WBRA, with an ucLinux kernel based system and associated system tools.
A dynamic Firewall (using the iptables netfilter) which can alter its is rules on detection of certain attacks/events. Very easily modified and expendable, with mySQL back-end and dynamically loaded user-space filters.
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.
PacLang is a language for programming Network Processors. It aims to make it easy to write high performance networking applications that are portable across a range of target platforms.
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Simplified object-oriented Python extension module for the ethreal's WireTap library. You can use this module to read any format of the captured file which supported by ethreal, like libpcap, tcpdump, etc.
A java based network and firewall simulator that allows users to set and test the effectiveness of firewall rules using either a commandline interface or graphical user interface.
The Nemesis Project is designed to be a commandline based, portable human
IP stack for UNIX-like and Windows systems. The suite is broken down by
protocol, and should allow for useful scripting of injected packets from
simple shell scripts.
sar110-tools offers a commandline interface to query and manipulate the state of the Solwise SAR-110 ADSL router.
sar110-tools is written in Python, and licensed under the GPL.
FreeIPMI provides in-band and out-of-band IPMI software based on the IPMI v1.5/2.0 specification. NOTE:- GNU FreeIPMI moved to savannah.gnu.org: http://www.gnu.org/software/freeipmi
HTTPPoll is a website monitoring and alert program, written in Java and run on the commandline. It polls a list of URLs at user-defined intervals, and can run three types of alerts when a URL returns an error code: email, pop-up dialog box, and shell scr
Tattoo will provide a set of command-line scripts for analyzing raw tcpdump files or ASCII hexadecimal representations of network traffic to identify format, function, and communication model.
a linux netfilter/iptables firewall log summarizer with graphical and commandline interface that helps the sysadmin in his daily routine. points of interest can be examined closer to gain further information. you can also run it in commandline mode and
A tool for gathering data from switches & routers, relating mac addresses & ports to hostnames, and showing that data through a webpage or a UNIX command-line.
ntrc (Network TRace Converter) is a command-line tool that allows conversion of network packet traces to and from different formats such as TSH, ns-2 TrafficTrace, tcpdump, etc. Written entirely in C, ntrc is particularly efficient with large traces.
This project aims to provide an easy to use interface to Samba, openLDAP, and Printing (via cups, iptables, emerge and apt-get. It currently is command-line based, and has the beginnings of a graphical interface via kommander (see quanta).