Configuring ESQL/C and ODBC drivers for SSO

The steps for preparing the SQLHOSTS information and the Generic Security Services (GSS) CSM configuration file for ESQL/C and ODBC and a client computer are similar to the corresponding server-side setup procedures.

Before you begin

Complete the tasks outlined in Configuring the HCL Informix instance for SSO before working on your client.

About this task

See Clients supporting SSO for a list of clients that support SSO with Informix.

Procedure

  1. Complete any setup steps specific to the client software you are using. This includes the following steps:
    1. For ESQL/C, include an sqlhosts entry specifying onsoctcp in the NETTYPE field and csm=(GSSCSM) in the OPTIONS field matching the same information for the Kerberos service in the server's SQLHOSTS information.
      For example, the following entry can be valid for the company JK Enterprises if the port number is already set in $INFORMIXDIR/etc/services:
      ol_sso_krb  onsoctcp  jkent-005 ol_sso_svce csm=(GSSCSM)
    2. Add Options="csm=(GSSCSM)" to the connection settings for the SSO-enabled database server entry in the odbc.ini file, as illustrated in the following example:
      Driver=/usr/informix/lib/cli/iclit09b.so
Description=HCL Informix ODBC DRIVER
Database=stores_demo
ServerName=ol_sso_krb
Options="csm=(GSSCSM)"
  2. Create the communications support module (CSM) configuration file for the client computer.
    This file must be named $INFORMIXDIR/etc/concsm.cfg on UNIX™ and Linux™ platforms, and $INFORMIXDIR/etc/concsm.cfg on Windows™. Read the CSM configuration file information for details about file requirements.
  3. Add a line to concsm.cfg for the client computer shared libraries and for the global and connection options.
    See Set up the concsm.cfg file for SSO for how to enter this configuration information.