Free udp software for linux

udpShell is a remote shell that uses UDP instead of TCP. It uses a client-server architecture (udpShell as the daemon and udpClient as the client).

Installation:
cd src
make
this sould make the work

if you like edit the Makefile to reflect your system, preferences.

NetPacket::UDP is a Perl module to assemble and disassemble UDP (User Datagram Protocol) packets.

SYNOPSIS

use NetPacket::UDP;

$udp_obj = NetPacket::UDP->decode($raw_pkt);
$udp_pkt = NetPacket::UDP->encode($ip_obj);
$udp_data = NetPacket::UDP::strip($raw_pkt);

NetPacket::UDP provides a set of routines for assembling and disassembling packets using UDP (User Datagram Protocol).

Methods

NetPacket::UDP->decode([RAW PACKET])

Decode the raw packet data given and return an object containing instance data. This method will quite happily decode garbage input. It is the responsibility of the programmer to ensure valid packet data is passed to this method.

NetPacket::UDP->encode(param => value)

Return a UDP packet encoded with the instance data specified. Needs parts of the ip header contained in $ip_obj, the IP object, in order to calculate the UDP checksum. The length field will also be set automatically.

Functions

NetPacket::UDP::strip([RAW PACKET])

Return the encapsulated data (or payload) contained in the UDP packet. This data is suitable to be used as input for other NetPacket::* modules.

This function is equivalent to creating an object using the decode() constructor and returning the data field of that object.

Instance data

The instance data for the NetPacket::UDP object consists of the following fields.

src_port

The source UDP port for the datagram.

dest_port

The destination UDP port for the datagram.

len

The length (including length of header) in bytes for this packet.

cksum

The checksum value for this packet.

data

The encapsulated data (payload) for this packet.

Simple UDP proxy/pipe is an advanced UDP proxy/datapipe/packets forwarder and modifier with multiple functions.

Multiple clients allowed (you can connect many clients you want to this proxy), creation of ACP files (tcpdump capture files, just like a sniffer), packets forwarding (chat style, each packet is forwarded to all the other clients and server connected), packets injection (the tool opens a specific UDP port where you can send your customized packets which will be sent to the server), hexadecimal visualization and plugins support for the modification and visualization of the packets with some example plugins already included (Zdaemon huffman, Doom huffman, Half-life decoding and one for the replacement of the text strings).

Plugins (which work on both Windows and Linux) are very basic to create and use, just take a look at example_sudp.c for more informations.

Hapm stands for High Availability Port Monitor and is a local port status check. It is a simple, light and fast daemon to check TCP/UDP ports.

If one or more monitored ports (per IP) downs then the Heartbeat will be killed by HAPM.

pkdump is a port scanning detection tool. The program detect any TCP ,UDP port scanning or open connection attempt from foreign host over the internet with IP protocol version 4
or IP protocol version 6 .
The program can detect:
TCP connect , TCP syn , TCP fin , TCP xmas, TCP ack, TCP null(no flags), UDP port (connect) and UDP null (0 bytes, UDP packets lengt ) , whether the IP packet are fragmented or not. (Please consult "Nmap"... man Nmap).
The program make a directory like this : "Pkdump-[date][time]" and in this directory make a file "PKDATA" that contains all IP packet sent and received during the transmission ,and during scanning attack make files that contains the data of the attack ;the data of the port scanning will displayed on the screen with a short beep;
Enhancements:
- Fixed bug in read-write operation.
- Show the number of IP fragment.

Dijjer is a peer-to-peer HTTP cache, designed to allow the distribution of large files from Web servers while virtually eliminating the bandwidth cost to the files publisher.

Dijjer project is designed to be simple, elegant, and to cleanly integrate with existing applications where possible. Dijjer uses "UDP hole punching" to allow it to operate from behind firewalls without any need for manual reconfiguration.

Dijjers distributed and scalable content distribution algorithm is inspired by Freenet.

fl0p is a passive L7 flow fingerprinter that examines TCP/UDP/ICMP packet sequences.

It can also can peek into cryptographic tunnels, can tell human beings and robots apart, and performs a couple of other infosec-related tricks.

This approach differs from the techniques used by most other passive sniffers and mappers, and is advantageous in several interesting ways:

- General flow behavior remains largely unchanged regardless of whether cryptographic tunnels or other obfuscation techniques are used. As such, backdoors or firewall evasion techniques that for example use SSL on port 443, can be told apart from browser traffic, and further investigated.

- General insight into legitimate encrypted sessions can be gained; for example, it is possible to remotely tell successful and failed SSH authentication attempts apart, and react accordingly.

- Human actions can be told apart from automated efforts: it is possible to ignore SMTP client programs, but single out humans manually interacting with the server on port 25; similarly, automated SSH login attempts can be told apart from human actions.