Implicit connections with authentication modules
Authentication responses to authentication modules, such
as PAM and LDAP, expect a password. However, in implicit connections
to the database server, there is no password.
Distributed transactions and authentication modules
When HCL Informix initiates
a distributed connection after the session is established, it cannot
respond to authentication challenges because the timing is unpredictable.
Also, the password required to connect to the local server might not
be the same as the password required to connect to the remote server.
Consequently, authentication for distributed connections must be completed
by the remote server on the basis of trust. The remote server must
trust the local server and the remote administrators must explicitly
permit the user to connect from the local server to the remote server.
Client APIs and authentication support modules
Only specific HCL Informix client
APIs support PAM and LDAP Authentication Support modules. To use
the other APIs when an authentication module is enabled on HCL Informix,
you can connect to a DBSERVERALIASES.
Compatibility issues with authentication modules
Only specific HCL Informix products
support authentication modules. To use the other products when an
authentication module is enabled on HCL Informix,
you can connect to a DBSERVERALIASES.