/** And overload of resolve() that takes host and service as a single string,
separated by a colon. If the host part contains colons, such as is the case
with a numeric IPv6 address, it must be enclosed in brackets. */
/** And overload of resolve() that takes host and service as a single string,
separated by a colon. If the host part contains colons, such as is the case
with a numeric IPv6 address, it must be enclosed in brackets. */