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...
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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.
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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.