ابزارهای امنیتی

دوستان عزیز
امیدوارم که با کمک هم بتوانیم ابزارهای مختلف امنیتی را که سراغ داریم در این بخش جمع آوری کنیم و به وسیله آنها بتوانیم امنیت بالاتری را در شبکه های خود پدید آوریم:

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[URL=http://www.Nessus.org]Nessus[/URL] : The premier Open Source vulnerability assessment tool
Nessus is a remote security scanner for Linux, BSD, Solaris, and other Unices. It is plug-in-based, has a GTK interface, and performs over 1200 remote security checks. It allows for reports to be generated in HTML, XML, LaTeX, and ASCII text, and suggests solutions for security problems[/LEFT].

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[URL=http://www.Ethereal.com]Ethereal[/URL] : Sniffing the glue that holds the Internet together
Ethereal is a free network protocol analyzer for Unix and Windows. It allows you to examine data from a live network or from a capture file on disk. You can interactively browse the capture data, viewing summary and detail information for each packet. Ethereal has several powerful features, including a rich display filter language and the ability to view the reconstructed stream of a TCP session. A text-based version called tethereal is included.
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[URL=http://netcat.sourceforge.net/]Netcat[/URL] : The network swiss army knife
A simple Unix utility which reads and writes data across network connections, using TCP or UDP protocol. It is designed to be a reliable "back-end" tool that can be used directly or easily driven by other programs and scripts. At the same time, it is a feature-rich network debugging and exploration tool, since it can create almost any kind of connection you would need and has several interesting built-in capabilities.

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