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A network scanning tool for pentesters

an active sniffer that provides methods for aggressive sniffing on switched LANs

network Audit Record Generation and Utilization System

Clients for net-analyzer/argus

A swiss knife tool for ARP

A utility to see if a specific IP address is taken and what MAC address owns it

A utility to poison ARP caches

ArpON (Arp handler inspectiON) is a portable Arp handler.

a collection of libnet and libpcap based ARP utilities.

An ethernet monitor program that keeps track of ethernet/ip address pairings

An HTTP authentication brute forcer

autoscan-network

Fast output system for Snort

Parser for Snort unified/unified2 files

Bigeye is a network utility dump and simple honeypot utility

A point-to-point bandwidth measurement tool.

interface bandwidth monitor

Quick and dirty mass SNMP scanner

The kernel.org "Current bandwidth utilization" bar

Bandwidth Monitor NG is a small and simple console-based bandwidth monitor

Simple ncurses bandwidth monitor

A tool to measure bandwidth and RTT between two hosts using ICMP

a complete frontend to rrdtool

Spine is a fast poller for Cacti (formerly known as Cactid)

Calamaris parses the logfiles of a wide variety of Web proxy servers and generates reports

An rsync logfile analyzer

display the current traffic on all network devices

A tool to trace TCP/UDP/... sessions and fetch application data from snoop or tcpdump logs.

cisco-auditing-tool

cisco-bruteforce-enabler

Network simulation tool

netcat clone extended with twofish encryption

TCP/IP Connection cutting on Linux Firewalls and Routers

darkstat is a network traffic analyzer

DHCP Packet Analyzer/tcpdump postprocessor

dhcp_probe attempts to discover DHCP and BootP servers on a directly-attached Ethernet network

A perl script to enumerate DNS from a server

Determines where a given nameserver gets its information from

Tool to analyze and detect suspicious traffic from IP and alert about it

A program which listens to network traffic and picks out images from TCP streams it observes

A collection of tools for network auditing and penetration testing

dublin-traceroute

echoping is a small program to test performances of remote servers

tool for checking router configuration

A graphical network monitor for Unix modeled after etherman

Local simulator for testing Linux QoS disciplines

A suite for man in the middle attacks and network mapping

Bans IP that make too many password failures

fem-nagios-plugins

A tool for determining a firewall's rule set

Flow-tools is a package for collecting and processing NetFlow data

A utility to ping multiple hosts at once

A libpcap-based tool to collect network traffic data and emit it as NetFlow flows

Testing of network intrusion detection systems, firewalls and TCP/IP stacks

Ftester - Firewall and Intrusion Detection System testing tool

A packet filter and firewall log analyzer

Gensink 4.1, a simple TCP benchmark suite.

Collection of network tools

greenbone-security-assistant

A simple GTK/command line TCP/IP packet generator

A ping-like TCP/IP packet assembler/analyzer

http protocol ping-like program

tool for checking well known weaknesses in the TCP/IP protocol

Advanced parallized login hacker

Interactive bandwidth monitor

Icinga - Check daemon, CGIs, docs, IDOutils

icinga-classicui

A Linux tool for setting the metrics of all IPv4 routes attached to a given network interface at once.

Network interface bandwidth usage, with support for snmp targets.

A simple CLI program for displaying network statistics in real time.

display bandwidth usage on an interface

A utility for finding, fingerprinting and testing IKE VPN servers

IPAudit monitors network activity on a network by host, protocol and port.

A pcap based IP traffic and bandwidth monitor with configurable reporting and alarm abilities

IP Cisco Accounting Daemon

A daemon which logs TCP/UDP/ICMP packets

console-based network monitoring utility, fork off iptraf 3.0.0

IP Tables State displays states being kept by iptables in a top-like format

IP Stack Integrity Checker

Network Management and Monitoring System.

A top like console network traffic visualiser

kismet-analyzer

Knocker is an easy to use security port scanner written in C

'Sticky' Honeypot and IDS

Layer Four Traceroute: an advanced traceroute implementation

Web-based configuration tool written to configure Nagios

Check websites for broken links

linode-longview

Utility for viewing/manipulating the MAC address of network interfaces

MBrowse is a graphical MIB browser

Memcached-Munin-Plugin

Advanced open-source framework for developing, testing, and using vulnerability exploit code

monitoring-plugins

IPv4/6 round-robin multiping client

A tool to monitor the traffic load on network-links

mrtg-ping-probe

Addon mrtg contrib for stats ping/loss packets

My TraceRoute. Excellent network diagnostic tool.

multipath-tcp-tools

Munin Server Monitoring Tool

munin-elasticsearch

munin-pdns_recursor

munin-plugins-contrib-openntpd

munin-plugins-contrib-ping

munin-plugins-rails

munin-plugins-zfs

The Nagios metapackage - merge this to pull install all of the nagios packages

nagios-check-zfs-linux

nagios-check_disk_btrfs

nagios-check_dnssec

nagios-check_fail2ban

A nagios plugin for checking the fail2ban daemon

nagios-check_glsa2

nagios-check_ipmi_sensor

nagios-check_linux_bonding

nagios-check_logfiles

A nagios plugin for checking logfiles

nagios-check_multi

nagios-check_multiple

nagios-check_mysql_health

A nagios plugin for checking logfiles

nagios-check_pidfile

nagios-check_rbl

nagios-check_unifi

Nagios Core - Check daemon, CGIs, docs

nagios-icinga-openvpn

nagios-plugin-check-scsi-smart

nagios-plugin-check_lm_sensors

nagios-plugin-check_raid

Nagios 9999 plugins - Pack of plugins to make Nagios work properly

nagios-plugins-ceph

nagios-plugins-extended

nagios-plugins-linux-madrisan

nagios-plugins-snmp

Additional Nagios plugins for monitoring SNMP capable devices

An irc bot that alerts you to nagios changes

Nagios status monitor for the desktop

integrated snmptt visualization addon for Nagios

DNS Benchmark Utility

NAST - Network Analyzer Sniffer Tool

NBTscan is a program for scanning IP networks for NetBIOS name information

Nagios addon to store Nagios data in a MySQL database

Cisco netflow probe from libpcap, ULOG, tee/divert sources.

nessus-agent-bin

A remote security scanner for Linux

Software for generating and retrieving SNMP data

the network swiss army knife

netcat clone with better IPv6 support, improved code, etc...

An active/passive address reconnaissance tool.

A small 'net top' tool, grouping bandwidth by process

NETI@Home research project from GATech

a network benchmark for DOS, OS/2, Windows NT and Unix that measures net througput with NetBIOS and TCP/IP protocols.

Network performance benchmark including tests for TCP, UDP, sockets, ATM and more.

Ultrafast implementation of ping.

top like program for network activity

Tcl/tk interface to netwox (Toolbox of 222 utilities for testing Ethernet/IP networks)

Ethernet/PPP IP Packet Monitor

Toolbox of 222 utilities for testing Ethernet/IP networks

A set of tools to collect and process netflow data

A grep for network layers

Web Server vulnerability scanner.

Script to parse and report on Cisco config errors

console application which monitors network traffic and bandwidth usage in real time

A utility for network exploration or security auditing

A Qt4 frontend to nmap

netbios scanner

Network Security Analysis Tool, an application-level network security scanner

Displays statistics about ethernet traffic including protocol breakdown

tool that shows network usage like top

tool to test TCP and UDP throughput

OCSInventory-ocsreports

OCSInventory-Server

Rule management for SNORT

openvas-scanner

p0f performs passive OS detection based on SYN packets.

network auditing tool that allows you to monitor, manipulate, and inject customized IPv4 traffic

Non-intrusive utility for estimation of available bandwidth of Internet paths

A tool for running Nmap scans and diff'ing the results

Cyclic multi ping utility for selected adresses using GTK/ncurses.

A network monitoring tool, with bandwidth tracking

A network tool to gather ip traffic informations

A performance data analyzer for nagios

TCP/IP-based ping implementation

Portmon is a network service monitoring daemon.

Automated port scan detector and response tool

prelude-correlator

prelude-lml-rules

prometheus-alertmanager

prometheus-blackbox_exporter

prometheus-haproxy_exporter

prometheus-memcached_exporter

prometheus-mongodb_exporter

prometheus-mysqld_exporter

prometheus-nginx_exporter

prometheus-nginx_vts_exporter

prometheus-node-exporter

prometheus-node_exporter

prometheus-phpfpm_exporter

prometheus-postgres_exporter

prometheus-pushgateway

prometheus-script_exporter

prometheus-snmp_exporter

prometheus-unbound_exporter

IDS/VA Correlation engine

raddump interprets captured RADIUS packets to print a timestamp, packet length, RADIUS packet type, source and destination hosts and ports, and included attribute names and values for each packet.

powerful tool for testing stability of hardware and software utilizing IP protocols

ripe-atlas-probe

ripe-atlas-tools

Read system statistical data and feed it to RRDtool

A system to store and display time-series data

Detects, reconstructs and analyzes any RTP session through heuristics over the UDP network traffic

SANCP is a network security tool designed to collect statistical information regarding network traffic and collect the traffic itself in pcap format.

Squid Analysis Report Generator

Netcat-clone, designed to be portable and offer strong encryption

Scanlogd - detects and logs TCP port scans

network scanner that gathers info on SSH protocols and versions

A Python interactive packet manipulation program for mastering the network

SNMP Command Line Interface

Simple Event Correlator

sflowtool is a utility for collecting and processing sFlow data

GUI Console for sguil Network Security Monitoring

Sensor part of sguil Network Security Monitoring

A portable passive network mapping suite

Realtime network interface monitor based on FreeBSD's pppstatus

Interactive Packet Sniffer

SNMP Trap Translator

Libpcap-based packet sniffer/logger/lightweight IDS

a powerful perl script that summarizes snort logs

Snort plugin that allows automated blocking of IP addresses on several firewalls

Squid logfile analyzer and traffic grapher

Squidsites is a tool that parses Squid access log file and generates a report of the most visited sites.

A Tool for network monitoring and data acquisition

Tool for testing multicast connectivity

Performance and information monitoring tool

Web frontend to symon

A Tool for network monitoring and data acquisition

TCP network re-engineering tool

replay saved tcpdump or snoop files at arbitrary speeds

Tcpslice is a program for extracting portions of packet-trace files generated using tcpdump's -w flag. It can also be used to glue together pcap dump files.

Reports network interface statistics

A Tool for analyzing network packet dumps

tcptraceroute is a traceroute implementation using TCP packets

Passive per-connection tcp bandwidth monitor

thc-pptp-bruter

Network discovery and fingerprinting tool

Measure the capacity of a network by sending a bulk TCP stream over it.

Blinks keyboard LEDs indicating outgoing and incoming network packets on selected network interface

Internet bandwidth tester

A traceroute-like utility that sends packets based on protocol

Utility to trace the route of IP packets

traceroute-nanog

Traceroute with AS lookup, TOS support, MTU discovery and other features

Full screen visualization of the network traffic

Tool to test TCP and UDP throughput

Scans the network for UPNP capable devices

Console-based network traffic monitor that keeps statistics of network usage

Web Application Attack and Audit Framework

Web application security auditor

Poor man's web vulnerability scanner

A network protocol analyzer formerly known as ethereal

This little tool displays a count and a graph of the traffic over a specified network connection.

Active OS fingerprinting tool - this is Xprobe2

A layer 2 attack framework

ZABBIX is software for monitoring of your applications, network and servers.

zabbix-agent-extensions

Displays and kill active TCP connections seen by the selected interface.

zs-apc-spdu-ctl