isCOBOL Server and Thin Client

If you are deploying your application through Java Web Start with a .jnlp file, you might see this error.  This is caused by the launch of an untrusted application.  Java doesn’t allow users to run applications that are not signed, are self... Read More

Yes, if you use the application server’s login feature. You can give each user their own login username and password, and they will need to use this information to log into your application. run iscclient -admin from a client PC and create new... Read More

The login screen you use to access the application server’s administration panel can also be used as a login screen for your application by setting  iscobol.as.authentication=2.  Usernames and encrypted passwords are saved in a properties... Read More

If you are using the login screen that comes with the application server for your application’s login, you can customize the behavior and look of this screen.  There is a sample program that will get you started in %ISCOBOL%/sample/as/custom... Read More

To spread the thin client load over more than one server, you can use isCOBOL LoadBalancer.   Once the isCOBOL LoadBalancer is started, it waits for connections from isCOBOL Clients.  When a connection request is received, the LoadBalancer... Read More

When isCOBOL Client connects to an isCOBOL Server, the following error may appear: Software Incompatibility Client release (###) is incompatible with Application Server (###) This error means that the isCOBOL Client version is different from... Read More

The best way to do this is to use CALL CLIENT using the C$SYSINFO library routine. It returns information about the current operating system. This library routine produces the same result as the ACCEPT SYSTEM-INFORMATION FROM SYSTEM-INFO statement... Read More

You can check the Java versions supported by your isCOBOL installation in our documentation under the "Getting Started" section. The Java versions do not need to match when running in thin client. The client can have a later version or an early... Read More

The library routine C$GETENV can be called on a local or client machine to get the user name. Here's an example. The "Client" keyword will be ignored if the program isn't running in thin client mode: move "user.name" to varname ... Read More

There are several ways that an application running on a server can launch an application on the client. The three most common are : CALL CLIENT "SYSTEM", "C$RUN" or "C$SYSTEM" (to open an application) Use "C$EASYOPEN" or "C$DESKTOP" (to open a file... Read More