You use the wsadmin utility to modify the properties in the configuration
of the Simple and Protected GSS-API Negotiation Mechanism (SPNEGO) trust association
interceptor (TAI) for WebSphere® Application Server.
About this task
Deprecated feature: In WebSphere Application Server Version
6.1, a trust association interceptor (TAI) that uses the Simple and Protected
GSS-API Negotiation Mechanism (SPNEGO) to securely negotiate and authenticate
HTTP requests for secured resources was introduced. In WebSphere Application Server 7.0,
this function is now deprecated. SPNEGO web authentication has taken its place
to provide dynamic reload of the SPNEGO filters and to enable fallback to
the application login method.
depfeat
You use
the wsadmin utility to configure the SPNEGO TAI for WebSphere Application Server:
Procedure
- Start WebSphere Application Server.
Start the command-line utility by running the wsadmin command
from the app_server_root/bin directory
from the Qshell command line.
- At the wsadmin prompt, enter the following command:
$AdminTask modifySpnegoTAIProperties
You
can use the following parameters with this command:
Option |
Description |
<spnId> |
This parameter is required.
It is the SPN identifier for the group of custom properties that are to be
defined with this command. |
<host> |
This parameter is optional. It
specifies the host name portion in the SPN used by the SPNEGO TAI to establish
a Kerberos secure context. |
<filter> |
This parameter is optional.
It defines the filtering criteria used by the class specified with the above
attribute. |
<filterClass> |
This parameter is optional.
It specifies the name of the Java class used by the SPNEGO TAI to select
which HTTP requests will be subject to SPNEGO authentication. If no class
is specified, all HTTP requests will be subject to SPNEGO authentication. |
<noSpnegoPage> |
This parameter is optional.
It specifies the URL of a resource that contains the content the SPNEGO TAI
will include in the HTTP response to be displayed by the (browser) client
application if it does not support SPNEGO authentication. If you do not
specify the noSpnegoPage attribute then the default is used: "<html><head><title>SPNEGO
authentication is not supported.
</title></head>" +
"<body>SPNEGO authentication is
not supported on this client.
</body></html>";
|
<ntlmTokenPage> |
This parameter is optional.
The ntlmTokenPage parameter specifies the URL of a resource that contains
the content the SPNEGO TAI will include in the HTTP response, which will be
displayed by the (browser) client application. The (browser) client application
displays this HTTP response when the browser client sends a NT LAN manager
(NTLM) token instead of the expected SPNEGO token during the challange-response
handshake.If you do not specify the ntlmTokenPage attribute then the default
is used: "<html><head><title>An NTLM Token
was received.</title></head>"
+ "<body>Your browser configuration
is correct, but you have not
logged into a supported Windows
Domain."
+ "<p>Please login to the application
using the normal login page.</html>";
|
<trimUserName> |
This parameter is optional.
It specifies whether (true) or not (false)
the SPNEGO TAI is to remove the suffix of the principal user name, starting
from the "@" that precedes the Kerberos realm name. If this attribute is set
to true, the suffix of the principal user name is removed.
If this attribute is set to false, the suffix of the principal
name is retained. The default value used is true. |
Results
SPNEGO TAI properties are modified for this WebSphere Application Server.
Example
- Example 1
- The following example configures the SPNEGO TAI to intercept HTTP requests
that contain IE 6 in the user agent request header. The SPNEGO
TAI uses the SPN of HTTP/myhost.ibm.com@<default_realm> to authenticate
the request originator. Then the example modifies the value of the filter
custom property that was defined and changes it from user-agent%=IE
6 to host==myhost.company.com.
$AdminTask addSpnegoTAIProperties -host myhost.ibm.com -filter user-agent%=IE 6
$AdminTask modifySpnegoTAIProperties -spnId 1 -filter host==myhost.company.com
- Example 2
- This is an example of modifying the SPNEGO TAI for SPN1 properties to
add a filter for host central01.austin.ibm.com.
wsadmin>$AdminTask modifySpnegoTAIProperties -interactive
Modify SPNEGO TAI properties
Modify SPNEGO TAI configuration properties
*Service Principal Name identifier (spnId): 1
Host name in Service Principal Name (host): central01.austin.ibm.com
HTTP header filter rule (filter): request-url!=noSPNEGO;request-url%=snoop
Name of class used to filter HTTP requests (filterClass):
SPNEGO not supported browser response (noSpnegoPage):
NTLM Token received browser response (ntlmTokenPage):
Trim User Name browser response (trimUserName):
Modify SPNEGO TAI properties
F (Finish)
C (Cancel)
Select [F, C]: [F] f
WASX7278I: Generated command line: $AdminTask modifySpnegoTAIProperties {-spnId
1 -host w2003secdev.austin.ibm.com -filter request-url!=noSPNEGO;request-url%=sn
oop}
com.ibm.ws.security.spnego.SPN1.filter=request-url!=noSPNEGO;request-url%=snoop
com.ibm.ws.security.spnego.SPN1.hostName=central01.austin.ibm.com
wsadmin>