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Stealth Mode and Connection Mode(Conventional) Mode Scanning

Can anyone give me some more information on Stealth mode scanning and Connection mode scanning? Why stealth mode is less agressive than connection mode?

Thanks

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Re: Stealth Mode and Connection Mode(Conventional) Mode Scanning

See this link:

http://insecure.org/nmap/man/man-port-scanning-techniques.html

stealth mode = SYN scan

connection mode = connect scan

connection mode can be considered more aggressive than stealth mode [from the perspective of the target] because it uses more resources (completes the 3-way handshake).

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