Release 10.1A: OpenEdge Getting Started:
Installation and Configuration

Network addressing (-S and -H)

In all network environments, you use the Service Name (-S) startup parameter to assign a name to an OpenEdge broker/server. You then address this broker/server from a remote client by using the same value for -S as a startup or database connection parameter. Depending on your network type, you might also have to specify additional addressing criteria for remote OpenEdge clients. In terms of OpenEdge addressing, the TCP protocol uses host addressing.

The TCP protocol requires a remote client to explicitly address the database server machine (or host) on which the server runs. In a TCP network, you must use the Host Name (-H) startup parameter to specify the host address. The -H value is the name assigned to the database server machine in your TCP/IP hosts file.