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Tests web servers and can detect around 2000 potentially dangerous CGI directories and scripts.

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Tool for recording and presenting time series data. Can also be integrated into other programs such as Cacti. Fast and secure download from The H

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IPv6-capable benchmark for measuring network traffic.

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Determines data rates via SNMP or plug-ins and displays them graphically in a browser. Fast and secure download from The H

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A collection of tools for monitoring networks and their data traffic. The dsniff, filesnarf, mailsnarf, msgsnarf, urlsnarf and webspy tools monitor all network traffic; the arpspoof, dnsspoof and macof tools allow you to forge network traffic; while the sshmitm and webmitm tools enable man-in-the-middle attacks in SSH and HTTPS connections.

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Measures data transfer rates in the network (TCP and UDP, under Windows also NetBIOS). Must therefore be run on two computers that can communicate with each other. Free for private use.

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MIB Browser allowing administrators to manage SNMP-enabled network devices and applications. Loads general information from the management information base (MIB) and includes a receiver for receiving special SNMP traps (network data). An enhanced professional version is also available.

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Reads and analyses packages on encrypted WiFi networks and tries to crack the WEP key of packages with weak initialisation vectors. The program has had no development since 2004. Fast and secure download from The H

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Intercepts network connections. SSH and HTTPS connections can also be redirected. Fast and secure download from The H

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Monitors network servers, such as SMTP, POP3, HTTP and NNTP, from a central point and warns the user of potential problems by email, IM or SMS. Network status and log files can be viewed on a web browser.

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This development of the discontinued Ethereal project logs and analyses data traffic on the network. Includes the required WinPCap. Portable version also available. Fast and secure download from The H

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Sends ARP requests in a network to a host (specified by a MAC address) and displays the replies. The Windows version requires WinPcap and can be accessed from the FTP directoryof the developer.

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Monitors networks and system processes. Is expandable (XML templates, scripts) and supports (among others) SNMP, Trap, syslog, Ping, WMI, Oracle, MySQL, Apache and DNS. Fast and secure download from The H

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Various tools for Simple Network Management Protocol.

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Security scanner suite for client and server. Find out more about version 4.2 at The H.

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Network intrusion prevention system. Detects intruders on the computer.

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Displays the data gathered from servers by the Round Robin Tool (RRDTool) as graphics.

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Network management tool with SQL backend and a web-based interface. Uses SNMP v1-3, but also supports telnet and SSH to secure configurations. Allows using CDP, FDP, NDP LLDP and MAC forwarding as well as routing tables to explore the entire network. Locates and tracks network computers for monitoring purposes.

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Real time performance monitoring for networks and systems. Informs the administrator of any problems and important developments. Records and displays a variety of performance data.

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Web-based tool for analysing bandwidth in real time. Helps identify network bottlenecks by evaluating network flow data and creating detailed reports about bandwidth load, IP traffic and the top talkers.

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