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ODSEE - Directory Proxy Server (DPS) Fails To Connect To Directory Server (DS) With 'certificate_unknown' Error (Doc ID 1326577.1)

Last updated on OCTOBER 31, 2019

Applies to:

Oracle Directory Server Enterprise Edition - Version 6.0 and later
Information in this document applies to any platform.


Directory Proxy Server (DPS) will not be able to connect with the backend Directory Server (DS) instances. The DS access log will show the following error.

[25/Sep/2009:11:37:12 +0200] conn=<nnn> op=-1 msgId=-1 - fd=23 slot=23 LDAPS connection from <IP_ADDR>:<NNN> to <IP_ADDR>
[25/Sep/2009:11:37:12 +0200] conn=<nnn> op=-1 msgId=-1 - SSL error -8101 (Certificate type not approved for application.); unauthenticated client E=<EMAIL>@<DOMAIN>,CN=<LDAP_PROXY,OU=<OU>,O=<SUFFIX_DN>,L=<LOCALE>,ST=<STATE>,C=<COUNTRY>; Issuer <ISSUER>
[25/Sep/2009:11:37:12 +0200] conn=<nnn> op=0 msgId=-1 - closing from <IP_ADDR>:<NNN> - B4 - Server failed to flush BER data back to client -
[25/Sep/2009:11:37:12 +0200] conn=<nnn> op=-1 msgId=-1 - closed.

and the DPS errors log displays:

[25/Sep/2009:11:37:12 +0200] - CONN - WARN - [Thread main] Unable to create a connection to LDAP server <HOSTNAME1>:<LDAPS_PORT>/Exception: Unable to perform SSL initialization on socket to <HOSTNAME2>:<LDAPS_PORT> -- Received fatal alert: certificate_unknown




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