My Oracle Support Banner

LDAP Naming Permissions Issue: Resolution Fails with ORA-12154 TNS: Failed to resolve service name (Doc ID 559286.1)

Last updated on FEBRUARY 19, 2019

Applies to:

Oracle Net Services - Version to [Release 10.2 to 12.2]
Information in this document applies to any platform.
This problem would most likely occur on a Unix client as it arises when the client has inadequate permissions on the $ORACLE_HOME.


10g LDAP naming resolution fails with ORA-12154, when the operating system owner making the connection is not the owner of the Oracle Software.  When using operating system user who does own the oracle software, then the same net service name resolution works fine.

TNSping can fail with TNS-3505: Failed to resolve name

Oracle Net client trace shows the failure OID discovery function failed with code 89 

nnfgrne: Switching to LDAP adapter 
nnflboot: entry 
nnflcgc: entry 
nnflobc: entry 
nnflobc:   initialized new connection ctx 111280  
nnflgcp: entry 
nnfloiddisco: entry 
nnflgetnlpactx: entry 
nlpaxini: entry 
nlpaxini: exit 
nnflgetnlpactx: NLPA context successfuly initialized  
nnflgetnlpactx: exit 
nnfloiddisco: OID discovery function failed with code 89 
nnflgcp: can't get config parameter DIRECTORY_SERVER_TYPE 
nnflgcp: exit 
nnflobc:   directory server type is 4096 
nnflgcp: can't get config parameter PRIMSVR_CONNRETRY_EXPTIME 
nnflgcp: exit 
nnflgcp: entry 
nnflgcp: can't get config parameter DEFAULT_ADMIN_CONTEXT 
nnflgcp: exit 
nnflrlc: entry 
nnfldlc: entry 
nnfldlc: exit 
nnflpsl: entry 
nnflgcp: entry 
nnflgcp: can't get config parameter DIRECTORY_CONNECT_METHOD 
nnflgcp: exit 
nnflgcp: entry 
nnflgcp: can't get config parameter DIRECTORY_SERVERS 
nnflgcp: exit 
nnflpsl: can't get server'


To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.