Internet Direct (Indy) Version 9.0.2 Beta
TIdTCPClient.Host
Address of the remote computer system.

property Host: string;
Description
Host is a String property that identifies the address of the remote computer system that will act as the endpoint for the client connection. The address can be a computer name such as "wvnvm.wvnet.edu" or an IP Address such as "129.71.2.4". To Connect to a server on your machine, use an IP address like "127.0.0.1" aka "localhost".