ORA-12505 - AIX - ProC/C++ - [AIX environment not properly set to NLS?]

Question

I DO need some help here!
I have a C++ program accessing an Oracle 8.0.5 database ( which is set up for american_america.weiso8859p1 as the default language PLUS one more being: brazilian portuguese_brazil.weiso8859p1.
When I log to the server which hosts the executable and try to run the application, I get the error ORA-12505 as soon as I try to connect to the database, but the error message can't be displayed, and instead, my exit routine displays: " Error while trying to retrieve text for error ORA-12505 "
If, alternatively, I log to another server THEN issues a telnet to the the server which hosts the executable and try to run the application, I get the programm to run nicely.
The settings of the environment variables ORA_NLS33 and NLS_LANGUAGE have been coded inside the C++ program (among first things in main) but it seems these settings have no effect in solving the problem.
The server which hosts the application has an AIX 4.3.3.0 operating system.
The server from which I issue the telnet command has an AIX 4.2.1.0 operating system.
What are the things that must be set in AIX in order to correctly access the Oracle database? Where can I get this type of information?
I do apreciate any clues to solve this problem of mine.
Thanks!

Answer 1

Sounds like this is a configuration problem:
ORA-12505: TNS: listener could not resolve SID given in connect descriptor
Cause: The SID in the CONNECT_DATA was not found in the listener's tables. This error will be returned if the database instance has not registered with the listener; the instance may need to be started.
Action: Check to make sure that the SID specified is correct. The SIDs that are currently registered with the listener can be obtained by typing "LSNRCTL SERVICES <listener name>". These SIDs correspond to SID_NAMEs in TNSNAMES.ORA, or DB_NAMES in the initialization file.