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I am trying to set up kerberos on Appian 7.6, but I am getting following e

foussenik

I am trying to set up kerberos on Appian 7.6, but I am getting following exception.

2015-01-16 20:02:38,529 [ajp-/0.0.0.0:8009-1] WARN org.springframework.security.extensions.kerberos.web.SpnegoAuthenticationProcessingFilter - Negotiate Header was invalid: Negotiate
org.springframework.security.authentication.BadCredentialsException: Kerberos validation not succesfull
          at org.springframework.security.extensions.kerberos.SunJaasKerberosTicketValidator.validateTicket(SunJaasKerberosTicketValidator.java:69)
          at org.springframework.security.extensions.kerberos.KerberosServiceAuthenticationProvider.authenticate(KerberosServiceAuthenticationProvider.java:86)
          at com.appiancorp.suiteapi.security.auth.AuthenticationProviderWrapper.authenticate(AuthenticationProviderWrapper.java:86)
          at org.springframework.security.authentication.ProviderManager.authenticate(ProviderManager.java:156)
          at org.springframework.security.extensions.kerberos.web.SpnegoAuthentic...

OriginalPostID-135266

OriginalPostID-135266

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    ... xtAssociationValve.java:169)
              at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:145)
              at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:97)
              at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:102)
              at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:336)
              at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:488)
              at org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:420)
              at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:920)
              at java.lang.Thread.run(Thread.java:745)
    Caused by: java.security.PrivilegedActionException: GSSException: Failure unspecified at GSS-API level (Mechanism level: Invalid argument (400) - Cannot find key of appropriate type to decrypt AP REP - RC4 with HMAC)
              at java.security.AccessController.doPrivileged(Native Method)
              at javax.security.auth.Subject.doAs(Subject.java:415)
              at org....
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    ... xtAssociationValve.java:169)
              at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:145)
              at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:97)
              at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:102)
              at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:336)
              at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:488)
              at org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:420)
              at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:920)
              at java.lang.Thread.run(Thread.java:745)
    Caused by: java.security.PrivilegedActionException: GSSException: Failure unspecified at GSS-API level (Mechanism level: Invalid argument (400) - Cannot find key of appropriate type to decrypt AP REP - RC4 with HMAC)
              at java.security.AccessController.doPrivileged(Native Method)
              at javax.security.auth.Subject.doAs(Subject.java:415)
              at org....
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