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Nmap Network Scanning

Protocol Options

-4 (IPv4 only)

Force the use of IPv4 only.

-6 (IPv6 only)

Force the use of IPv6 only.

-U, --unixsock (Use Unix domain sockets)

Use Unix domain sockets rather than network sockets. This option may be used on its own for stream sockets, or combined with --udp for datagram sockets. A description of -U mode is in the section called “Unix Domain Sockets”.

-u, --udp (Use UDP)

Use UDP for the connection (the default is TCP).

--sctp (Use SCTP)

Use SCTP for the connection (the default is TCP). SCTP support is implemented in TCP-compatible mode.

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