6.2 CICS Transaction Gateway on distributed platforms This section looks at CICS TG from a distributed perspective. 6.2.1 CICS TG for Multiplatforms V6.0 CICS TG for Multiplatforms V6.0 is supported on the following range of operating systems and platforms and is designed to support connectivity to all in-service CICS servers: Linux on System z Linux on Intel® Linux on POWERTM AIX® HP-UX (on PA-RISC) SunTM SolarisTM (on SPARC) Windows XP, Windows 2000, and Windows 2003 CICS TG for Multiplatforms comprises the following main runtime components : The Gateway daemon This listens for incoming work and manages the threads and connections necessary to ensure good performance. The Client daemon This provides the communication to CICS servers and the non-Java application programming interfaces (APIs). A Java class library or JCA resource adapter This is deployed into the client runtime environment. When used in a JCA environment, the resource adapter is deployed into the J2EE application server. A Java client program can connect to a remote Gateway daemon using the TCP or SSL protocols. The Client daemon then provides the transport drivers to connect to the CICS server. Because the non-Java APIs are provided by the Client daemon, there is no remote connectivity support for non-Java clients. Chapter 6. CICS Transaction Gateway 193