TCP/IP and SNA connections to CICS® servers, can be started or stopped using the cicscli command.
On Windows, you can start a connection to a CICS server after the IBM® CICS Transaction Gateway service has been started. On UNIX and Linux, starting a connection to a CICS server will start the Client daemon if it is not already running. You do not have to start server connections explicitly. When a request is sent to a server, the server connection is automatically started, if it is not already established. If you change the configuration of a CICS server connection, you must stop and restart the connection.
cicscli -s=servername
cicscli -x=servername
cicscli -i=servername
Shutting down a server connection does not shut down the Client daemon or connections to other servers.