Error
Error Code: ORA-28302

Oracle Error ORA-28302: LDAP User Missing

📦 Oracle Database
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Description

The ORA-28302 error indicates that the Oracle database could not find a matching user entry in the LDAP directory service during SSL authentication. This typically happens when the user's Distinguished Name (DN) from their certificate doesn't exist in the LDAP server.
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Error Message

ORA-28302: User does not exist in the LDAP directory service.
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Known Causes

3 known causes
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Missing LDAP Entry
The user's Distinguished Name (DN) extracted from the certificate does not match any existing entry in the LDAP directory.
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Incorrect DN Configuration
The user's certificate contains an incorrect or outdated Distinguished Name (DN).
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LDAP Synchronization Issue
The LDAP directory has not been properly synchronized with the Oracle database, resulting in missing user entries.
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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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