The dns module provides two sets of methods: the resolve family, which directly resolves using the DNS protocol, and the lookup function, which uses the system resolver (through getaddrinfo) and returns at most one address.
It's often preferable to use the system resolver, since it can use things like mDNS. However, using the dns.lookup API makes it impossible to receive multiple IP addresses in response to a DNS query (See #708 for motivating example).
Proposal: Add a new function dns.lookupAll that behaves like dns.lookup, but returns all addresses given by getaddrinfo.
The
dnsmodule provides two sets of methods: theresolvefamily, which directly resolves using the DNS protocol, and thelookupfunction, which uses the system resolver (throughgetaddrinfo) and returns at most one address.It's often preferable to use the system resolver, since it can use things like mDNS. However, using the
dns.lookupAPI makes it impossible to receive multiple IP addresses in response to a DNS query (See #708 for motivating example).Proposal: Add a new function
dns.lookupAllthat behaves likedns.lookup, but returns all addresses given bygetaddrinfo.