Communications Server for Linux requires a number of environment variables to be defined.
Refer to the README file supplied with the SNA product and ensure that all variables are correctly set, including LD_PRELOAD. It is recommended that you set LD_PRELOAD in ctgd.conf so that the library is only loaded for the Client daemon process. The LD_PRELOAD environment variable must be set to a 32-bit shared object to allow the 32-bit Client daemon process to communicate with the SNA product. Read the man page for ld.so for information about security issues associated with LD variables.
To ensure that messages can be written to error logs, the user who starts the Client daemon process must be a member of the "sna" group.
export LD_PRELOAD=""