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OUD - LDAP Clients Return: "Result Code: 81 (Server Connection Closed)" After Attempting to Modify the TLS Protocol Version and/or Cipher Suite Configuration (Doc ID 2817058.1)

Last updated on APRIL 27, 2023

Applies to:

Oracle Unified Directory - Version and later
Information in this document applies to any platform.


After attempting to reconfigure TLS protocol version and/or cipher suites, OUD's LDAP clients return -

Result Code:  81 (Server Connection Closed)

and either of the following errors:

- Cannot send the simple bind request:  SSLHandshakeException(Received fatal alert: protocol_version)
- Cannot send the simple bind request:  SSLHandshakeException(No appropriate protocol (protocol is disabled or cipher suites are inappropriate))


Reconfiguration of TLS protocol version (versions added or removed) and/or cipher suites (added or removed) in OUD (see OUD Configurations which include the ssl-protocol and ssl-cipher-suite parameters, above)
- AND / OR -
Recent update of Java version or reconfiguration of jdk.tls.disabledAlgorithms and/or jdk.tls.legacyAlgorithms in where algorithms were added or removed from these settings.



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In this Document
 Example: Configure TLS Protocol Version & Cipher Suites for TLS 1.3 When using ldapsearch against the LDAPS port

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