dns.LookupOptions

interface LookupOptions

• all?: boolean

  When true, the callback returns all resolved addresses in an array. Otherwise, returns a single address.

• family?: number | 'IPv4' | 'IPv6'

  The record family. Must be 4, 6, or 0. For backward compatibility reasons, 'IPv4' and 'IPv6' are interpreted as 4 and 6 respectively. The value 0 indicates that either an IPv4 or IPv6 address is returned. If the value 0 is used with { all: true } (see below), both IPv4 and IPv6 addresses are returned.

• hints?: number

  One or more supported getaddrinfo flags. Multiple flags may be passed by bitwise ORing their values.

• order?: 'ipv4first' | 'ipv6first' | 'verbatim'

  When verbatim, the resolved addresses are return unsorted. When ipv4first, the resolved addresses are sorted by placing IPv4 addresses before IPv6 addresses. When ipv6first, the resolved addresses are sorted by placing IPv6 addresses before IPv4 addresses. Default value is configurable using setDefaultResultOrder or --dns-result-order.