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NMAP - A Stealth Port Scanner--reference

发布时间:2021-01-26 15:34:01 所属栏目:Linux 来源:网络整理
导读:http://nmap.org/bennieston-tutorial/ Nmap is a free,open-source port scanner available for both UNIX and Windows. It has an optional graphical front-end,NmapFE,and supports a wide variety of scan types,each one with different benefits and

The FTP protocol (RFC 959) specified support for a "proxy" ftp,which allowed a connection to an FTP server to send data to anywhere on the internet. This tends not to work with modern ftpds,in which it is an option usually disabled in the configuration. If a server with this feature is used by Nmap,it can be used to try to connect to ports on your victim,thus determining their state.

This scan method allows for some degree of anonymity,although the FTP server may log connections and commands sent to it.

The -P0 (that’s a zero) option allows you to switch off ICMP pings. The -PT option switches on TCP Pings,you can specify a port after the -PT option to be the port to use for the TCP ping.

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