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ngrep strives to provide most of GNU grep's common features, applying them to the network layer. ngrep a pcap-aware tool that will allow you to specify extended regular expressions to match against data payloads of packets. It currently recognizes TCP, UDP, and ICMP across Ethernet, PPP, SLIP, FDDI, Token Ring and null interfaces, and understands BPF filter logic in the same fashion as more common packet sniffing tools, like tcpdump and snoop.

The Packet Debugger (pdb) is a program which allows people to work with packet streams as if they were working with a source code debugger. Users can list, inspect, modify, and retransmit any packet from captured files as well as work with live packet capture.

This is a relatively simple port of OpenRADIUS. From the faq... ------------------------------ What is OpenRADIUS? OpenRADIUS is a piece of software that links your network access devices to your user-, service profile-, and usage databases. As such, OpenRADIUS isn't unique; other servers that speak the RADIUS protocol do the same. But it is unique in the flexibility it offers you in building this link, because it puts you in full control of the business rules used inside the server and the ways it talks to your databases - without anybody having to hack the source code. ------------------------------

Omnitty is a curses-based program that allows one to log into several machines simultaneously and interact with them, selectively directing input to individual machines or groups of selected machines. You can run both line-oriented and screen oriented in the target machines, because Omnitty has built-in terminal emulation capability. When the window is large enough, Omnitty also displays a "summary area" for each machine, in which it shows what the latest output from the machine was, so you can have an idea of what is going on in each machine.

Open Message Queue is a complete message-oriented middle-ware platform. High quality, enterprise ready messaging.

OpenNX is an open source drop in replacement for NoMachine's NX client. It is compatible to the original client in that it uses the same syntax for the session configuration files (.nxs files). OpenNX is distributed under the GNU Lesser Public License v2.1. OpenNX is written in C++ and uses the excellent wxWidgets toolkit. Compared to the original client, it also adds some additional features which improve usability: - Ability to use the OpenSC framework to enable SmartCard based authentication for the initial SSH connection. - Ability to use a variety of different proxy types. - Ability to fetch session configuration files via http (read only) - Ability to disable configuration controls by providing a read only configuration file. - Dynamic use of libsmbclient, libcups, libopensc and pulseaudio (no static dependencies). - Uses libjpeg-turbo for speed improvement (if available).

Decapsulate traffic encapsulated within GRE, IPIP, 6in4 and ESP protocols from a pcap file. Can also remove IEEE 802.1Q (virtual lan - vlan) header.

Paris traceroute is a new version of the well-known network diagnosis and measurement tool. It addresses problems caused by load balancers with the initial implementation of traceroute.

Panoptis is a project started some time ago, with the aim to stop the Denial of Service and Distributed Denial of Service attacks that have been torturing the Internet for the last few years. It is based on real-time processing of Cisco (R) NetFlow (TM) data, since this seems to be the most efficient approach as it is router-centric, allowing for automated central response without intervention from the affected organizations' network administrators.

Gspoof is a GTK+ program written in C language which makes easier and accurate the building and the sending of TCP packet with a data-payload or not. It's possible to modify TCP/IP fields also Ethernet header working to Link Level.