Supported authentication schemes
IBM Installation Manager supports the following HTTP protocol authentication schemes: NTLM, DIGEST, and BASIC.
These schemes are supported when accessing HTTP and HTTPS servers as well as when accessing an HTTP proxy. The NTLM scheme allows different types of challenge and response messages.
Installation Manager keeps passwords accepted for the HTTP and HTTPS servers until you close Installation Manager. If you choose the Save password option, your credentials are stored. The saved credentials are used when you restart Installation Manager or IBM Packaging Utility. You can clear the stored credentials for a repository by clicking Clear Credentials on the Repositories preference page.
Windows
You can use your current Windows login credentials by leaving all fields empty in the credentials prompt. If Installation Manager continues to prompt for Windows credentials when the correct credentials are entered, then Installation Manager might be configured incorrectly. The type of Windows authentication required and used on a Windows machine is configured using the registry key LMCompatibilityLevel. For information about the LMCompatibilityLevel registry key, see the support site for Microsoft.
Linux, UNIX, IBM i and z/OS
To change the type of authentication used, set the preference key //publib.boulder.ibm.com/infocenter/install/v1r4/topic/com.ibm.cic.commandline.doc/topics/c .ntlm.auth.kind. By default, //publib.boulder.ibm.com/infocenter/install/v1r4/topic/com.ibm.cic.commandline.doc/topics/c .ntlm.auth.kind is set to NTLM. For information about //publib.boulder.ibm.com/infocenter/install/v1r4/topic/com.ibm.cic.commandline.doc/topics/c .ntlm.auth.kind, see Silent installation preference keys .
Verifying authentication versions
Check the log entry to verify the version of authentication that is in use. To access the log file in Installation Manager, click File > View Log.
Find an INFO entry on Installation Manager initializing the HTTP mechanism. Table 1 contains the INFO entry messages for the different authentication schemes.
Authentication Scheme INFO entry NTLM NTLM over HTTP is configured to use NTLM version 1 authentication. NTLMv2 NTLM over HTTP is configured to use NTLM version 2 authentication. LM NTLM over HTTP is configured to use LM authentication