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Free version of C-MOR IP closed-circuit television system for operating an IP-=camera within a virtual machine. Functions include time-controlled recordings, motion detection, a screen mask and an iPad/iPhone interface. Fast and secure download from The H

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Framework for developing and testing of exploits for security vulnerabilities. Windows version available via direct download.

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Tests web applications for security breaches. Uses heuristic methods for automatically detecting vulnerabilities to attacks by cross-site scripting or SQL and XML injection. Creates a report on necessary improvements. Requires Cygwin on Windows.

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Firewall system based on m0n0wall that supports Packet Queuing (ALTQ), Multi-WAN, OpenVPN and CARP (Common Address Redundancy Protocol). Can be installed on any computer that has an x86 architecture.

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Firewall based on Linux. Provides DHCP or NTP server and DynDNS updater.

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Port scanner. Looks for open TCP and UDP ports on other computers on the same network. Fast and secure download from The H

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FreeBSD-based firewall for Internet gateways. Has a web and console interface, DHCP server, support for NAT/PAT and many other features. Fast and secure download from The H

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Editor which encrypts and decrypts files and texts using GNU Privacy Guard (GnuPG). Capable of running without installation. Fast and secure download from The H

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Linux live system for penetration tests to find weak points in the system.

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Server version of AntiVir Personal, the well-known virus scanner that protects file servers in a company environment. Alongside the classic functions for fending off viruses, spyware and other malware, it includes services that have been specially designed for use in networks.

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Monitors network traffic and attempts to detect suspicious activities, packets and connections that could lead to an attack on the network. Information is obtained from various sources such as Snort.

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A complete package that turns a PC into a Linux router with a firewall.

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Monitors server hardware, network connections, operating systems, virtualisation, databases, web servers and applications. Displays information about deviations, load response and disturbances, and alerts you to malfunctions. Download requires registration. Also available as advanced Enterprise Edition.

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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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Personal firewall with a user interface for Linux that allows you to specify which programs can access the internet. In addition to application control, you have the option of selectively releasing IP addresses, ranges and ports. The package can be downloaded directly for use with Ubuntu, Kubuntu, Xubuntu and Debian. Installation instructions are available on the manufacturer’s web site.

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Tests your system for online security loopholes. Also checks for infringements by exploits, open ports and trojans. Use it to determine whether your browser is passing on personal information and whether other people can see into your computer.

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This Firefox upgrade tells users about weak or insecure SSL certificates and warns them of potential security loopholes.

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Graphical interface for the port scanner Nmap.

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This tool acts as an SMTP proxy server and filters all your email traffic before it reaches the actual server. Includes adaptive Bayes recognition, an SPF scan, your own honeypot and RBL (Real-time Blackhole List) check. Can be set up as a service under Windows. Its integrated web server also enables you to configure the server and perform logfile diagnostics via a browser.

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Monitors the network, validates its current status and recognises specific ARP-based attacks, for example ARP spoofing. Also available as enhanced professional version.

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