Error
Error Code: ORA-28174

Oracle Error ORA-28174: Missing Kerberos Ticket

📦 Oracle Database
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Description

The ORA-28174 error indicates that a client attempted to authenticate using Kerberos through a proxy user, but a Kerberos ticket was not provided during the authentication process. This typically occurs when the proxy user is not properly configured to forward Kerberos credentials.
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Error Message

ORA-28174: Kerberos ticket not provided by proxy
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Known Causes

3 known causes
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Proxy User Misconfiguration
The proxy user account in Oracle is not configured to allow delegation or forwarding of Kerberos tickets. 🔒
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Missing Kerberos Credentials
The client attempting to authenticate via the proxy does not possess a valid Kerberos ticket. ⚠
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Incorrect Kerberos Configuration
The Kerberos configuration files (krb5.conf) on either the client or server are incorrectly configured, preventing proper ticket acquisition or validation. ⚙
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Solutions

Coming Soon

Detailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:

General Troubleshooting Tips

  • Check the error message carefully for specific details
  • Review recent changes that might have caused the error
  • Search for the exact error code in the official documentation
  • Check log files for additional context
  • Try restarting the application or service

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