krb-error 30 error code:KRB5KDC_ERR_S_PRINCIPAL_UNKNOWN Server Name(Unknown) HTTP/Null

Question

Hi I have searched many blog posts but could not get any solution. I have seen many posts with a similar kind of error but in their case Server Name: HTTP/Domain Name I was able to get ticket for the user to go to the server.

But I really dont know why I am getting this kind of error with Server Name as null.

The error is

KRBError: sTime is Tue Oct 20 10:11:30 EDT 2009 1256047890000 suSec is 548720 error code is 7 error Message is Server not found in Kerberos database realm is XXX.YYY.COM sname is HTTP/null msgType is 30

My Config files are like below:

login.config

com.sun.security.jgss.login { com.sun.security.auth.module.Krb5LoginModule required client=TRUE useTicketCache=true doNotPrompt=false debug=true; };

com.sun.security.jgss.initiate { com.sun.security.auth.module.Krb5LoginModule required client=TRUE useTicketCache=true debug=true; };

com.sun.security.jgss.accept { com.sun.security.auth.module.Krb5LoginModule required client=TRUE useKeyTab=true storeKey=true doNotPrompt=true principal="HTTP/[email protected]" isInitiator=false debug=true; };

krb5.config

[libdefaults] default_realm = XXX.YYY.COM udp_preference_limit = 1 default_tkt_enctypes = des-cbc-md5 des-cbc-crc des3-cbc-sha1 default_tgs_enctypes = des-cbc-md5 des-cbc-crc des3-cbc-sha1 permitted_enctypes = des-cbc-md5 des-cbc-crc des3-cbc-sha1

[realms] YYY.ZZ.COM= { admin_server =xxx.yyy.zz.com kdc = xxx.yyy.zz.com default_domain = yyy.zz.com master_kdc = xxx.yyy.zz.com }

[domain_realm] .yyy.zz.com= YYY.ZZ.COM
yyy.zz.com= YYY.ZZ.COM

Could anyone help me with this?

Thanks in Advance

Answer 1

This open source project http://spnego.sourceforge.net has some documentation and examples. I think it might be what you need.

Answer 2

Thank You Pat for your response. I am following the procedure mentioned in the link https://issues.apache.org/jira/browse/HTTPCLIENT-523. I am using the KerberosHttpClient example. I am using Java 5. The examples in the link which you suggested works for Java 6. Can you help me by directing me to some right source.

Thanks in Advance!!