Originally posted by abhaysk
What if u r doing on server.. sqlnet.ora has no role here?? ..
sqlnet.ora plays role if somebody is trying to connect to database using connect string (@dbname).

"NAMES.DIRECTORY_PATH" entry is used for all the cases that connect to database using connect string.

"SQLNET.AUTHENTICATION_SERVICES" is used for all those trying "connect as internal" in 8i or "connect / as sysdba" with a connect string.