Here's the best scanner of the www, and i could write down all his features but i've already said the main two, wich are: network exploration; security auditing; tcp and udp port scanner; operative system and application enumeration (version, name, etc...); It also as the abilitie to scan large networks or single hosts, servers, whatever... . Well, there's many other cool and usefull functions in NMap, but visit the site: www.insecure.org And there download the version for your operative system. Notes: In windows versions, the nmap can work in a ms-dos and/or GUI mode, so, download the one you like the most. Also, if you're thinking that this scanner doesn't have more functions then the usuall free scanners, think again!

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I've been curious about these kinds of tools for a while now, but never found one that I could use very easily. Would this utility happen to include a packet sniffer? Sometimes I'd like to be able to analyze the traffic that's going through my network card, especially if I have reason to think I've been rooted or some other spyware nastiness.

Thanks!

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This is not exactly a sniffer or network analyzer (original name for sniffer), and i don't know what kind of network you want to analyze.

Is it a wired or wireless network?

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Hi lyon2, it's a wired network. Thanks.

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Well, there's tons of them, but if really want to see the best security tools, including sniffers and others very usefull, visit this link (list of the top 75 security tools) :

http://www.insecure.org/tools2000.html

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