>>-setenv--INFORMIXKEYTAB--pathname----------------------------><
The INFORMIXKEYTAB environment variable specifies the location of the keytab file. The keytab file contains authentication information that database servers and clients access at connection time, if they use the DCE-GSS communications support module (CSM). It contains key tables that store keys, each of which contains a principal name (database server or user name), type, version, and value.
The database server uses the keytab file to find the key to register the database server and to acquire a credential for it. A client application uses the key if the user did not execute dce_login with the current operating-system user name (which is the same as the DCE principal name) or did not explicitly provide a credential.
For example, the following command specifies that the name and location of the keytab file is /usr/myfiles/mykeytab:
setenv INFORMIXKEYTAB /usr/myfiles/mykeytab
For more information about the DCE-GSS communications support module, see the IBM Informix: Administrator's Guide.
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