ICI Modules: net: addresses

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Addresses

Addresses are for IPv4 with DNS and may be in one of two forms, 

        port@host
        host:port

A port is either a decimal number or a service name that is looked up in the network service database using the C getservbyname() function. The host may be specified either as an IP address using dotted-decimal notation or as a DNS name which is resolved using C's gethostbyname().

Some examples may be clearer,