SPNEGO TAI JVM configuration custom properties
JVM custom properties control the operation of the Simple and Protected GSS-API Negotiation Mechanism (SPNEGO) trust association interceptor (TAI).
The following JVM custom properties control operation of the SPNEGO TAI. Different custom property values can be specified for each application server.
Custom property Required Type Default Recommended com.ibm.ws.security.spnego.isEnabled No Boolean False True com.ibm.ws.security.spnego.propertyReloadFile No String None Windows: C:\temp\TAI.props
UNIX: /tmp/TestTAI.Propertiescom.ibm.ws.security.spnego.propertyReloadTimeout No Integer None 120
- com.ibm.ws.security.spnego.isEnabled
- Use this custom property to enable or disable operation of the SPNEGO TAI in a given application server. When set to false, the SPNEGO TAI is disabled and not used by the Web authentication module for authenticating any Web requests. When set to true, the SPNEGO TAI is enabled and used by the Web authentication module for authenticating any Web requests.
- com.ibm.ws.security.spnego.propertyReloadFile
- Use this custom property to identify the file that contains configuration properties for the SPNEGO TAI, when it is not convenient to stop and restart the application server. The properties contained in this file can be reloaded to configure the SPNEGO TAI. Important: The properties that are defined in the specified file override any properties defined using the administrative console.
A sample of this reload file follows:
########################################################## # Template properties files for SPNEGO TAI # # Where possible defaults have been provided. # ########################################################## #--------------------------------------------------------- # Hostname #--------------------------------------------------------- #com.ibm.ws.spnego.SPN1.HostName=wsecurity.austin.ibm.com #--------------------------------------------------------- # (Optional) SpnegoNotSupportedPage #--------------------------------------------------------- #com.ibm.ws.spnego.SPN1.SpnegoNotSupportedPage= #--------------------------------------------------------- # (Optional) NTLMTokenReceivedPage #--------------------------------------------------------- #com.ibm.ws.spnego.SPN1.NTLMTokenReceivedPage= #--------------------------------------------------------- # (Optional) FilterClass #--------------------------------------------------------- #com.ibm.ws.spnego.SPN1.FilterClass=com.ibm.ws.spnego.HTTPHeaderFilter #--------------------------------------------------------- # (Optional) Filter #--------------------------------------------------------- #com.ibm.ws.spnego.SPN1.Filter=If custom property...
com.ibm.ws.security.spnego.propertyReloadFile...is set, but the custom property...
com.ibm.ws.security.spnego.propertyReloadTimeout...is not, then the SPNEGO TAI is not initialized.
- com.ibm.ws.security.spnego.propertyReloadTimeout
- Use this custom property to specify a time interval in seconds that elapses after which the SPNEGO TAI reloads the configuration properties. Also, the SPNEGO TAI reloads the configuration properties if the file that is identified by the custom property...
com.ibm.ws.security.spnego.propertyReloadFile...changed since the last time the configuration custom properties were retrieved. This time interval in seconds must be specified as a positive integer.
If the custom properties...
com.ibm.ws.security.spnego.propertyReloadFile
com.ibm.ws.security.spnego.propertyReloadTimeout...are not set, then the SPNEGO TAI properties are only loaded once from the SPNEGO TAI custom properties defined in the WebSphere Application Server configuration data. This one time loading occurs when the JVM is initialized.
If custom property...
com.ibm.ws.security.spnego.propertyReloadTimeout...is set, but the custom property...
com.ibm.ws.security.spnego.propertyReloadFile...is not, then the SPNEGO TAI is not initialized.
You use the wsadmin command for the AdminConfig scripting object to interactively set...
com.ibm.ws.security.spnego.isEnabledThe following custom properties are not used directly by the SPNEGO TAI; however, they affect the operation of the core security runtime and can also be used for problem determination.
Custom Property Name Required Value Type Default Value Recommended Value java.security.properties No String None com.ibm.security.jgss.debug No String None "off" or "all" com.ibm.security.krb5.Krb5Debug No String None "off" or "all" javax.security.auth.useSubjectCredsOnly Yes Boolean True False
- java.security.properties
- This property is optional. It can be used when different application servers in a cell have different security requirements and it is not convenient to modify the global java.security file for the entire cell.
In such situations, the java.security.properties custom property is used to specify the location of the java.security file used by the JVM for each application server.
- com.ibm.security.jgss.debug
- This custom property is optional. It can be used to collect diagnostic trace information for problem determination in the Java Generic Security Service (JGSS) application programmer interface (API) implementation. The value can be set to all or off to enable or disable tracing, respectively.
- com.ibm.security.krb5.Krb5Debug
- This custom property is optional. It can be used to collect additional diagnostic trace information for problem determination in the JGSS implementation.
The value can be set to all or off to enable or disable tracing, respectively.
- javax.security.auth.useSubjectCredsOnly
- JGSS includes an optional JAAS login facility that saves Principal credentials and secret keys in the Subject of the application’s JAAS login context. JGSS retrieves credentials and secret keys from the Subject by default. This feature can be disabled by setting the Java property javax.security.auth.useSubjectCredsOnly to false.
The SPNEGO TAI does not use the optional JAAS login module. The javax.security.auth.useSubjectCredsOnly property must be set to false.
Related concepts
Single sign-on for HTTP requests using SPNEGO
Related tasks
Related reference