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Need help with kerberos connection

Mike YevtyeyevSep 29 2025

Hi!

I am trying to setup kerberos connection in VS code extension. First thing to mention is that standalone java SQL Developer work no problem. However oracle command line tools do not work. I cannot connect with sqlplus no matter what i do.

I also able to establish connection from .Net apps with MIT. Go figure… So frustrating.

With VS code extension it is somewhere half way…

In the output i can see that connection attempted, but failing with

    "errorCode": "DBTS-02000",
    "message": "An error occurred when attempting to connect to the database",
    "cause": "The following error occurred: ORA-18923: The service in process is not supported: No valid credentials provided (Mechanism level: Server not found in Kerberos database (7)) (CONNECTION_ID=TgSw8ScRTqyj1dbABvu2qw==)\r\nhttps://docs.oracle.com/error-help/db/ora-18923/",
    "action": "Consult your database documentation for information on how to resolve the specified error code"
  }

Deeper in the stack trace i can see:

Caused by: GSSException: No valid credentials provided (Mechanism level: Server not found in Kerberos database (7))

In standalone version I have specified password and checked ‘Save password’, so effectively it does cache refresh.

In extension version this does not work, as kinit manually does not work either.

I have made sure i have environment variables and on top of this also tried to set java properties, but may be i still missing something?

oracle.net.kerberos5_cc_name: c:\users\…

oracle.net.tns_admin: h:\tnsnames

oracle.net.authentication_services: (KERBEROS5) // BTW looks like this is case sensitive!!!

oracle.net.kerberos5_confd:…

java.security.krb5.conf:…

Any suggestions will be appreciated!

This post has been answered by thatJeffSmith-Oracle on Oct 2 2025
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Added on Sep 29 2025
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