Preparing to install CICS Universal Client

Before you install CICS® Universal Client, perform the following steps as appropriate:

  1. Check that your operating system is supported; see Supported software for supported operating systems.
  2. Log on as root. Start of changeCheck the root user's umask to ensure that files created during the installation are readable by the user IDs that will run the CICS Transaction Gateway. A umask of 077 restricts access to the root user that installed the CICS Transaction Gateway; a umask of 022 allows all users to run the CICS Transaction GatewayEnd of change.
  3. Linux® operating systems: Issue the following command from the command line:
    umask 0022
  4. Close down any programs that are running, including the following:
    • Client daemon (issue the cicscli -x command)
    • Configuration Tool
  5. The installation process can upgrade from the CICS Universal Client Version 5.1 or later. Remove any other versions of the CICS Universal Client or CICS Transaction Gateway before installing this product. Remove any beta versions of the product.