Error
Error Code: ORA-28180

Oracle ORA-28180: Proxy Authentication Conflict

📦 Oracle Database
📋

Description

The ORA-28180 error occurs in Oracle Database when a proxy user specifies multiple authentication methods for a client user during a connection attempt. This happens when the proxy user is configured with conflicting authentication settings, leading to connection failure.
💬

Error Message

ORA-28180: multiple authentication methods provided by proxy
🔍

Known Causes

3 known causes
⚠️
Conflicting Authentication Methods
The proxy user is configured to use both a database username and a distinguished name for client authentication, leading to a conflict.
⚠️
Incorrect Proxy Configuration
The database administrator incorrectly configured the proxy settings, specifying multiple or incompatible authentication methods.
⚠️
Certificate and Username Mixup
The proxy user attempts to authenticate using both an X.509 certificate and a database username simultaneously.
🛠️

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