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A network scanner that detects Microsoft Windows shares using the SMB protocol.
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A set of network diagnostic tools, such as an enhanced replacement for traceroute.
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Free effective anti-virus security solution for systems running Linux; free updates of all signature files and high scanning speed.
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A Crypto IP Encapsulation project. Offers a protocol that passes encrypted packets between prearranged routers in the form of UDP packets.
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Protocol LAN analyzer that can monitor various interfaces: ISDN, PPP, Token Ring, standard: loopback, 10baseT Ethernet.
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The famed Computer Oracle and Password System is a suite of tools that can automatically detect configuration problems or holes in your system.
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CTClib (PGP-interoperable ANSI C encryption software library) and CTCjava (Java crypto components and application).
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Vexira Antivirus for Linux workstations and servers. A complete virus defense system designed for easy and dependable virus prevention on Linux systems.
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An authentication and accounting server for terminal servers that speak the RADIUS protocol.
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Adds the ability for a network administrator to set packet filtering rules via a web page interface. unsecure from an external source, but very easy to use for intranet management.
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A circuit-level firewall and proxy that can be used to provide convenient and secure network connectivity to a wide range of hosts. Very similar to a SOCKS implementation.
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Performs emulation of other operating systems and vulnerabilities not found on the host; in order to deceive and solicit invaild attempts of exploitation by malicious individuals.
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An application-level gateway server.
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A BSD-based firewall with source included. This binaries main value is that it is perfect for beginners learning how firewalls are developed.
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A protocol analyzer that supports ethernet, Token Ring, SLIP, PPP, ISDN, and loopback.
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Free software package for booting x86 PCs over networks.
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Network protocol analyzer for Unix that allows examination of data from a live network, or from a capture file on disk.
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Allows the user to take over the IP address of another machine in the user's LAN via ARP spoofing.
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Free Tabular DataStream package. Tabular DataStream is a client-to-database server protocol in SyBase and Microsoft SQL database implementations.
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An open source OpenPGP compatible encryption system. Provides data integrity services for messages and data files by using digital signatures, encryption, and compression.
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A network scanner that uses spoofed source address packets. Mainly used to test firewall rules and to perform advanced TCP/IP related attacks like the idle scan.
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An advanced TCP/IP packet filter suitable for use in firewall environments. Can be loaded as a module or compiled into the kernel.
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IPTraf is a console-based network statistics utility that gathers TCP connection paket and byte counts, interface statistics, and activity indicators. Also captures all TCP/UDP packets.
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Freeware for Unix/Linux/FreeBSD/OS2/BeOS/Windows 95/98/ME/NT4. Web proxy that filters banner ads, cookies, and referer tracking. Supports wafers and User-Agent spoofing.
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Linux Pluggable Authentication Modules (PAM) is a flexible mechanism for authenticating users using alternative authentication schemes.
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Tool that interactively builds a firewall using ipfwadm, ipchains, or netfilter/iptables firewalling. [GPL]
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A log analysis program that interfaces with the SNORT open source Intrusion Detection System to provide real time visual notification when an intrusion signature has been detected on the network.
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Strong user authentication and access control for Linux environments in a fully integrated system using PAM modules.
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icmpquery is a tool for sending and receiving ICMP queries for the destinations address mask and current time.
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A packet sniffing tool, based on the Berkeley packet capture library; that prints complete data-link, network, and transport layer header information for all packets it sees.
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Performs logging of incoming IP packets by utilizing a multi-threaded approach. Administrators can perform filtering of captured packets.
