Check whether a string is an IP address (v4 or v6).
Returns 4 for IPv4, 6 for IPv6, or 0 if the string is a hostname (not an IP literal).
4
6
0
Useful for segregating alternateHostname and advertisedEndpoints values into SAN dNSName vs iPAddress entries.
alternateHostname
advertisedEndpoints
dNSName
iPAddress
Check whether a string is an IP address (v4 or v6).
Returns
4for IPv4,6for IPv6, or0if the string is a hostname (not an IP literal).Useful for segregating
alternateHostnameandadvertisedEndpointsvalues into SANdNSNamevsiPAddressentries.