Configuring Listener on Oracle Server I am very much new to Oracle environment. I was trying to connect to my Oracle server from another machine on the same network. I found out that I need to configure Oracle Listener on the server that I did using the "Net Configuration Assistant" tool.

After saving the configuration file, I opened the listener.ora file and saw that in my new listener the hostname is the IP/machine name of the Oracle server itself rather than the client machine, what I was thinking that the host name in the listener should be IP/machine name of the client machine? Is that right?
Its clear to me now that the Host name in the listener configuration on the Oracle server is indeed the IP/Name of the Oracle server where the database exists and the port number is the port this database will listen to incoming connections. I was wrong in assuming that each incoming connection must be defined as a listener.