For some reason NiFi is trying to use the realm NIFI.COM. I'd search through your config files and your Kerberos Credential Service and see where that's coming from.
Thanks On 4/17/20, 7:49 AM, "Ganesh, B (Nokia - IN/Bangalore)" <b.gan...@nokia.com> wrote: Hi , no , default_realm = NOKIA.COM -----Original Message----- From: Shawn Weeks <swe...@weeksconsulting.us> Sent: Friday, April 17, 2020 5:43 PM To: dev@nifi.apache.org Subject: Re: Nifi with kerberos(kdc) is not working in Nifi 1.11.4 Can you verify that your KDC Realm is really NIFI.COM and that it's defined in /etc/krb5.conf? Thanks Shawn On 4/17/20, 5:14 AM, "Ganesh, B (Nokia - IN/Bangalore)" <b.gan...@nokia.com> wrote: Hi , I am facing issue with Nifi 1.11.4 in Kerberos mode , whereas nifi 1.9.2 not seeing this issue . I am using kdc version as 2.2.5 Can anybody help me on this ? REST call to 'https://10.75.156.102:30088/nifi-api/flow/client-id is failed with below error java.lang.IllegalArgumentException: The supplied username and password are not valid.}. Returning Bad Request} response."} java.lang.IllegalArgumentException: The supplied username and password are not valid. at org.apache.nifi.web.api.AccessResource.createAccessToken(AccessResource.java:735) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/java.lang.Thread.run(Thread.java:834) Caused by: org.apache.nifi.authentication.exception.InvalidLoginCredentialsException: Kerberos authentication failed ... 84 common frames omitted Caused by: org.springframework.security.authentication.BadCredentialsException: Kerberos authentication failed at org.springframework.security.kerberos.authentication.sun.SunJaasKerberosClient.login(SunJaasKerberosClient.java:66) ... 86 common frames omitted Caused by: javax.security.auth.login.LoginException: Cannot locate KDC at jdk.security.auth/com.sun.security.auth.module.Krb5LoginModule.attemptAuthentication(Krb5LoginModule.java:782) .java:59) ... 88 common frames omitted Caused by: sun.security.krb5.KrbException: Cannot locate KDC at java.security.jgss/sun.security.krb5.Config.getKDCList(Config.java:1259) at jdk.security.auth/com.sun.security.auth.module.Krb5LoginModule.attemptAuthentication(Krb5LoginModule.java:744) ... 96 common frames omitted Caused by: sun.security.krb5.KrbException: Generic error (description in e-text) (60) - Unable to locate KDC for realm NIFI.COM at java.security.jgss/sun.security.krb5.Config.getKDCFromDNS(Config.java:1356) at java.security.jgss/sun.security.krb5.Config.getKDCList(Config.java:1232) ... 101 common frames omitted