socket.gethostbyname_ex(hostname)
Translate a host name to IPv4 address format, extended interface. Return a triple (hostname, aliaslist, ipaddrlist)
where hostname is the primary host name responding to the given ip_address, aliaslist is a (possibly empty) list of alternative host names for the same address, and ipaddrlist is a list of IPv4 addresses for the same interface on the same host (often but not always a single address). gethostbyname_ex()
does not support IPv6 name resolution, and getaddrinfo()
should be used instead for IPv4/v6 dual stack support.
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