Projects tagged ‘network’ and ‘traffic’

iftop does for network usage what top(1) does for CPU usage. It listens to network traffic on a named interface and displays a table of current bandwidth usage by pairs of hosts. Handy for answering the question "why is our ADSL link so slow?".

Tcpreplay is a suite of BSD licensed tools written by Aaron Turner for UNIX (and Win32 under Cygwin) operating systems which gives you the ability to use previously captured traffic in libpcap format ... [More] to test a variety of network devices. It allows you to classify traffic as client or server, rewrite Layer 2, 3 and 4 headers and finally replay the traffic back onto the network and through other devices such as switches, routers, firewalls, NIDS and IPS's. Tcpreplay supports both single and dual NIC modes for testing both sniffing and inline devices. Tcpreplay is used by numerous firewall, IDS, IPS and other networking vendors, enterprises, universities, labs and open source projects. [Less]

vnStat is a console-base network traffic monitor that keeps a log of daily and monthly network traffic for the selected interface. However, it isn't a packet sniffer. The traffic information is ... [More] analyzed from the /proc -filesystem, so that vnStat can be used without root permissions. [Less]

This is a PHP fronted end to vnStat, a network traffic logger.

This is a web front-end to vnStat (a network traffic logger). it only requires a cgi-supported http server setup but also generates a graphical report with SVG. Hence, it is suited to the resource-limited embedded Linux system.

matrixdump is just a little PoC (and PoS) program i wrote in an evening to toy with ncurses and demo how you can drive a "matrix" like view using network data. i'm surprised no one's done this before ... [More] , but it's been on my mind since the original movie came out. matrixdump isn't as feature rich as tcpdump or tethereal, and the decodes are minimal. just the protocol, IPs, ports ... nothing else. the decodes could definitely be more interesting if you wanted to make them more usable. amusingly, i'm not a huge fan of the movies, they were ok but the sequels don't get me as turned on as the original. anyhow, why not drive some fun with a tool like this? part of this is me thinking about how to visualize CTF competitions, and part of it was me delving into the world of ncurses. what's very funny is that this shows how lousy this interface is for actually looking at data. then again, you can say things like "porn, porn, SYN flood, porn ..." matrixdump contains code from dugsong's dsniff (the pcaputil routines). BUGSmatrixdump is just a toy, and isn't very feature filled or stable. the scrolling is a bit wonky at times, but generall works. the color stuff is a bit wonky, set your term to "ansi" on some systems to get it to respect "-c". INSTALLATIONbuilt and tested on openbsd and OS X. it uses pcap, libdnet, and ncurses. you'll have to tweak a few things for other platforms probably. THANKSJean-Francois Brousseau, Ron Rosson, Gustavo, Michael Coulter, Joris Vink [Less]

Networks have policies in place to ensure efficient, fair resource utilization and protection of network installations. For an effective resource monitoring and countering mechanism, network traffic ... [More] and diverse activity logs need to be parsed. netscout is a python based network filtering, monitoring and countering mechanism driven by policies. Traffic is observed in real time, largely in a passive mode, and past and current user/host activity information is used to make decisions about future traffic monitoring. Such a 'predictive' model allows efficient information gathering and subsequent appropriate responses. More information can be found here. [Less]

KTrafficAnalyzer is meant to provide visual feedback of your current network traffic, similar to tools like DU-Meter. In addition it provides statistics with total down- and upload sums.

Bandwidth-tool is a sniffer program for 802.3 networks designed for command line which works without using any external library. You can obtain the amount of kb/s of any communication and get statistics of ports used and traffic by IPs.

itrafgen - générateur de trafic réseauItrafgen permet de générer du trafic sur une interface réseau avec la possibilité de gérer plusieurs flux et plusieurs protocoles, les paquets sont reçus ... [More] sur une autre interface. Itrafgen calcule la latence du flux de paquet envoyer et reçu et le drop. Le générateur utilise 2 cartes réseaux pour fonctionner (une interface d'émission, et une interface de réception). Gère plusieurs protocole (Ethernet, VLAN 802.1Q, IP, TCP , UDP...) Permet de créer ses propres descripteurs de protocoles (via l'interface graphique ou directement en XML). Affiche sous forme d'un graphique la latence réseau et la latence moyenne. Ce programme fait l'objet d'un projet de 5ème année ingénieur ESSTIN (Nancy). Plus de détails sur l'utilisation de itrafgen sur : http://www.sebhoerner.fr [Less]