hi,all,
      I have installed Dogtag Certificate System by pki_install_guide,include ca, subca, kra, ocsp,tks,ra and tps,  configure is finished.
i have problem in using the Dogtag Certificate Sytem, there many main requestes follow.
     note: my test domain is wotest.com   , operate platform is fedora 13
     1. after pkicreate and configure,Enrollment Certificate  by URL https://wotest.com:9444/ca/ee/ca/  and Issue Certifite  are OK,
but i access subca  Agent Service, can't fetch the subca's Certificate Enrollment  submited by SSL END USER SERVICES(https://wotest.com:9544/ca/ee/ca/).
Subca's Agent Service Click List Requests  display :
Problem Processing Your Request

The Certificate Manager encountered an unexpected error while processing your request. The following is a detailed message of the error that occurred.

Invalid Credential.

Please consult your local administrator for further assistance. The Certificate System logs may provide further information.


 2.  if I restart fc13 and execute the "service pki-cad start " ,display:
    pki-ca (pid 3386) is running ...

    Unsecure Port       = http://wotest.com:9180/ca/ee/ca
    Secure Agent Port   = https://wotest.com:9443/ca/agent/ca
    Secure EE Port      = https://wotest.com:9444/ca/ee/ca
    Secure Admin Port   = https://wotest.com:9445/ca/services
    EE Client Auth Port = https://wotest.com:9446/ca/eeca/ca
    PKI Console Port    = pkiconsole https://wotest.com:9445/ca

    Tomcat Port         = 9701 (for shutdown)

    PKI Instance Name:   pki-ca

    PKI Subsystem Type:  Root CA (Security Domain)

    Registered PKI Security Domain Information:
    ==========================================================================
    Name:  wotest
    URL:   https://wotest.com:9445
    ==========================================================================

[root@woto jeff]# service pki-cad start pki-subca
Starting pki-subca:
                                                           [È·¶¨]

pki-subca (pid 4341) is running ...

    Unsecure Port       = http://wotest.com:9580/ca/ee/ca
    Secure Agent Port   = https://wotest.com:9543/ca/agent/ca
    Secure EE Port      = https:/wotest.com:9544/ca/ee/ca
    Secure Admin Port   = https://wotest.com:9545/ca/services
    EE Client Auth Port = https://wotest.com:9546/ca/eeca/ca
    PKI Console Port    = pkiconsole https://wotest.com:9545/ca
    Tomcat Port         = 9801 (for shutdown)

    PKI Instance Name:   pki-subca

    PKI Subsystem Type:  Subordinate CA

    Registered PKI Security Domain Information:
    ==========================================================================
    Name:  wotest
    URL:   https://wotest.com:9445
    ==========================================================================

  
   if i access Agent Services in CA or SUBCA, Click List Requests  display :
Problem Processing Your Request

The Certificate Manager encountered an unexpected error while processing your request. The following is a detailed message of the error that occurred.

Invalid Credential.

Please consult your local administrator for further assistance. The Certificate System logs may provide further information.


So, we can't go on, please tell me what's the problem, and how to   do?
    thanks a lot.

    --
    Best Regards,
    jeff