Enterprise Server Communications Environment Variables

Environment variables for configuring the input and output and the display.
Instead of using the CCI Configuration Utility to set the TCP address of the machine running the CCITCP2 registration daemon the environment variable "CCITCP2" can be used instead. This may be useful if you need different processes on the same machine to contact different registration daemons.


export CCITCP2


hostname is the TCP hostname or dotted decimal IP address of the machine running the CCITCP2 daemon you wish to contact from that session.


The environment variable value will always take precedence over any value set using the Configuration Utility. To restore a process to using the value set by the Configuration Utility simply set the environment variable to an empty string, such as

set CCITCP2=

Alternatively, if this environment variable is set system-wide (by creating a system variable in the system environment settings, or by using a CONFIG.SYS file) then this value will always take precedence over any value set using the Configuration Utility.

The port that is being used for the registration process.


  • port The port on which the CCITCP2 registration program operates.
Part of the process to enable CCI tracing is to specify the degree of information that will be traced, which can be done by setting the CCITRACE environment variable as follows:


  • options Any, or all, of the following:
/F or -F Logs the details of CCI API calls to the trace file. The default is OFF, unless any other trace option is specified, in which case it is always ON.
/P or -P Logs the details of protocol-level calls to the trace file. The default is OFF. If this flag is OFF, then only the details of the CCI user-level API will be traced. If this flag is ON, the level of function tracing can be increased.
/D or -D Logs the contents of all buffers passed to and from the CCI functions. The default is OFF. Data tracing might not be allowed if the application has been coded to prohibit data tracing for security reasons.

The CCI.INI file can also be used to control trace options, but any values specified by the CCITRACE environment variable will take precedence.

Specifies the location of the SNA traces written by IMB's communication manager. You must set this environment variable before you start the region to ensure that the SNA trace files are written to a valid directory:

This directory is then used to set up the SNA environment variables SNAMSG and SNATRC to appropriate values.