Armory
PktAnon
PktAnon performs network trace anonymization. It is highly configurable and uses anonymization profiles. Anonymization profiles allow for mapping of arbitrary anonymization primitives to protocol attributes, thus providing high flexibility and easy usability. A huge number of anonymization primitives and network protocols are supported and ready to use for online and ...
iftop
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?".
Live HTTP Headers
A Firefox plugin which allows you to view the HTTP headers of a live connection as they are sent and received.
NTRadPing
NTRadPing is a useful tool for testing installations of your RADIUS servers. Through NTRadPing you can simulate authentication and accounting requests and send them to the RADIUS server making NTRadPing act as a NAS client.
XTest
XTest is a simple, practical, and free, wired 802.1x supplicant security tool implementing the RFC 3847 EAP-MD5 Authentication method. It can be used to assess the password strength within wired ethernet environments that rely on 802.1x to protect IP Phones and the VoIP Infrastructure against rogue PC access. XTest is ...
Helix
Helix is a customized distribution of the Knoppix Live Linux CD. Helix is more than just a bootable live CD. You can still boot into a customized Linux environment that includes customized linux kernels, excellent hardware detection and many applications dedicated to Incident Response and Forensics. Helix has been modified ...
BGPlay
BGPlay is a Java application which displays animated graphs of the routing activity of a certain prefix within a specified time interval. Its graphical nature makes it much easier to understand how BGP updates affect the routing of a specific prefix than by analyzing the updates themselves. The BGPlay database ...
Pandora FMS
Pandora FMS is a monitoring Open Source software. It watches your systems and applications, and allows you to know the status of any element of those systems. Pandora FMS could detect a network interface down, a defacement in your website, a memory leak in one of your server application, or ...
PhotoRec
PhotoRec is file data recovery software designed to recover lost files including video, documents and archives from Hard Disks and CD-ROM and lost pictures (thus, its 'Photo Recovery' name) from digital camera memory. PhotoRec ignores the filesystem and goes after the underlying data, so it will still work even if ...
Samurai Web Testing Framework
The Samurai Web Testing Framework is a live linux environment that has been pre-configured to function as a web pen-testing environment. The CD contains the best of the open source and free tools that focus on testing and attacking websites. In developing this environment, we have based our tool selection ...
Firewalk
Firewalk is an active reconnaissance network security tool that attempts to determine what layer 4 protocols a given IP forwarding device will pass. Firewalk works by sending out TCP or UDP packets with a TTL one greater than the targeted gateway. If the gateway allows the traffic, it will forward ...
Nfdump
Nfdump is a set of tools to collect and process netflow data. It's fast and has a powerful filter pcap like syntax. Nfdump supports netflow versions v5, v7 and v9 as well as a limited set of sflow and is IPv6 compatible. See also [NfSen](http://nfsen.sourceforge.net/).
NfSen
NfSen is a graphical web based front end for the [nfdump](http://nfdump.sourceforge.net/) netflow tools.
Advanced IP Scanner
Advanced IP Scanner is a fast, robust and easy-to-use IP scanner for Windows. It easily lets you have various types of information about local network computers in a few seconds! Advanced IP Scanner gives you one-click access to many useful functions - remote shutdown and wake up, Radmin integration and ...
Advanced Port Scanner
Advanced Port Scanner is a small, fast, robust and easy-to-use port scanner for Win32 platform. It uses a multithread technique, so on fast machines you can scan ports very fast. Also, it contains descriptions for common ports, and can perform scans on predefined port ranges.
Advanced LAN Scanner
Advanced LAN Scanner is a small, easy-to-use, highly configurable network scanner for Win32. And it's VERY fast. Advanced LAN Scanner uses multithreading so you can scan more than 1000 elements per second! If used to scan ports, Advanced LAN Scanner can scan all 65536 ports in less than a minute! ...
TheDude
This is an awesome utility for doing SNMP tracking, network usage, the works! You can underlay geographical maps to use on you WAN maps or floorplans for LAN mapping. It can track just about anything under the sun that is network connected. Best of all, it's free!
LanSweeper
Lansweeper is a powerful solution to make a complete software, hardware, computer inventory of your Windows network.
Likewise Software
Securely Integrate Linux, Unix, and Mac with Active Directory by allowing the machines to join the domain and users to authenticate with their domain credentials.
EveryPing
EveryPing shows you: 1. Your IP address 2. Your host name 3. The round trip ICMP delay between the EveryPing server and your firewall 4. The RFC Jitter calculated from the ICMP delay 5. A chart with the most recent 10 delay results
Overlook - Fing
Fing is the ultimate tool for network discovery and scanning, allowing administrators to troubleshoot their network easily and at the speed of light. Once installed on a Windows, Mac or Linux computer, your home, office and corporate network are just one click away.
AsItHappens Network Statistic Collector
AsItHappens is a real-time network statistic collector and grapher. It collects data from devices over a network and displays them on a graph, optionally storing collected data in a database for later retrieval. Current collection types include network response, bandwidth, processor usage, memory usage, Cisco NBAR, Cisco NetFlow and arbitrary ...
Netsparker
Netsparker® can find and report security issues such as SQL Injection and Cross-site Scripting (XSS) in all web applications regardless of the platform and the technology they are built on. Netsparker's unique detection and exploitation techniques allows it to be dead accurate in reporting hence it's the first and the ...
Terminals
Terminals is a secure, multi tab terminal services/remote desktop client. It uses Terminal Services ActiveX Client (mstscax.dll). The project started from the need of controlling multiple connections simultaneously. It is a complete replacement for the mstsc.exe (Terminal Services/Remote Desktop Services) client. Right now it supports all of these connection types: ...
PRTG Network Monitor
PRTG Network Monitor (PRTG, successor of Paessler Router Traffic Grapher) is a network monitoring software from Paessler AG. PRTG runs on Windows and monitors network availability and network usage using SNMP, Packet Sniffing, WMI, IP SLAs and Netflow and various other protocols.
DHCP Explorer
DhcpExplorer tool allows you to discover DHCP servers on your local subnet or LAN. This is useful for locating servers that are not supposed to be on your network ( rogue DHCP servers ) as well as checking the expected output of known servers. DHCP Explorer broadcasts on the local ...
netsniff-ng
netsniff-ng is is a free, performant Linux network analyzer and networking toolkit. The gain of performance is reached by 'zero-copy' mechanisms, so that the kernel does not need to copy packets from kernelspace to userspace and vice versa. For this purpose the netsniff-ng suite is libpcap independent, but nevertheless supports ...
Curl
Powerful tool used by many data centers to check the L7 connectivity.. I saw this missing in your list.
Network Miner
NetworkMiner is a Network Forensic Analysis Tool (NFAT) for Windows. NetworkMiner can be used as a passive network sniffer/packet capturing tool in order to detect operating systems, sessions, hostnames, open ports etc. without putting any traffic on the network. NetworkMiner can also parse PCAP files for off-line analysis and to ...