1.Port
Specifies the port number that sshd(8) listens on. The default is 22.
2.Protocol
Specifies the protocol versions sshd(8) supports. The possible values are
'1' and '2'. Multiple versions must be comma-sepa-rated. The default is
'2'. Note that the order of the protocol list does not indicate preference,
because the client selects among multiple protocol versions offered by the
server. Specify-ing '2,1' is identical to '1,2'.
3.AddressFamily
Specifies which address family should be used by sshd(8). Valid arguments are
'any', 'inet' (use IPv4 only), or 'inet6' (use IPv6 only). The default is 'any'.
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