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Informix Error -1809: Server rejected the connection.

Cause and resolution

Server rejected the connection.

Check that you have permission to connect to the server that you specified. If you specified both a database server and a database, check to see that you have permission to access the database.

This error message can occur when you are trying to use a Pluggable Authentication Module (PAM) feature of IDS when one or both of the following conditions exists:

* The PAM configuration file is not set correctly. Refer to the OS vendor documentation for more information.

* The client or server computer is not configured to handle PAM messages that are generated from a connection request.

Oninit® Troubleshooting Guidance

Reasons / Common Causes

-1809 fires when the target server rejects a connection attempt — per the official guidance, this points at connection permissions and database access rights, and may also stem from PAM (Pluggable Authentication Module) configuration issues.

  1. Insufficient connection permissions to the specified server, per the official guidance — the first named check.
  2. Insufficient database access rights, per the official guidance — the second named check.
  3. A PAM configuration file not set correctly, per the official guidance's PAM-specific case.
  4. The client or server computer not configured to handle PAM messages generated from a connection request, per the official guidance's other PAM-specific case.
Solutions / Resolution
  1. Verify connection permissions to the specified server, per the official guidance.
  2. Verify database access rights, per the official guidance.
  3. If PAM is in use, check the PAM configuration file's correctness, per the official guidance.
  4. Confirm the client and server are both configured to handle PAM connection-request messages, per the official guidance, if PAM authentication is involved.
Examples
N/A

No specific triggering statement is documented — check server/database permissions and, if PAM is in use, its configuration on both client and server.

Diagnostic Checks
  1. Check connection permissions and database access rights for the specified server.
  2. If PAM is in use, check its configuration file and client/server PAM-message handling.
Related Errors / Related Topics

No closely related error codes are cross-referenced for -1809 in this set yet.

The server rejected the connection — check permissions/access rights first, then PAM configuration if applicable.