# Io Reference

Networking / Socket / DNS

|  | Utility methods related to Domain Name Service lookups.

dnsQueryPacketForHostName(hostNameSeq)

Assembles a DNS query packet for the given host name and returns it in a Sequence.
hostNameAndIPforDNSResponsePacket(dnsResponsePacketSeq)

Dissasembles the given dnsResponsePacketSeq and returns a list object containing the hostName and IP or an error string on error.
localNameServersIPs

Returns a list of local name server IPs as a list of Sequences. Works on OSX, Unix, Windows.