# Io Reference

Networking / Socket / DNSServer

|  | An object representing a DNSServer which DNS requests can be sent to.
|  | host The host name (usually an IP) for the DNSServer. ipForHostName(hostName, timeout) Sends a request to the DNS server, waits for a response and returns it. Will try 3 times if there are timeouts. Returns the IP (as a Sequence) if successful, raises an exception otherwise. setHost(aSeq) Sets the host name for the DNSServer.