UNIX (AIX, HP-UX PA-RISC, and Solaris) The environment variable INFORMIXDIR must be set to the directory where you have installed the Informix client. For example, the following syntax is valid for C-shell users: setenv INFORMIXDIR /databases/informix For Bourne- or Korn-shell users, the following syntax is valid: INFORMIXDIR=/databases/informix;export INFORMIXDIR In addition, the INFORMIXSERVER variable must be set to the name of the Informix server (as defined in your $INFORMIXDIR/etc/sqlhosts file). For further details, refer to the Informix documentation. To access supported remote Informix databases through the Informix driver, you need one of the following: • On AIX: Informix Client Software Development Kit version 2.2 or higher; or Informix Connect version 2.2 or higher • On HP-UX and Solaris: Informix Connect version 2.x • On HP-UX and Solaris: Informix Client Software Development Kit version 2.x