Cant connect through Net 8.

Question

Hello, Im a beginner Oracle8i (WinNT) developer. I recently used Oracles Database Configuration Assistant to create a new database (previously I only had the starter db from the initial install).
After adding a second database all of my Net Service Names that previously connected to my starter database stopped connecting. Furthermore I cant configure a new connection to my new database.
Help, Andrew
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Answer 1

Hello Daniel, I am pasting my listener.ora and tnsnames.ora files for both my Win98 client and WinNT server.
For the client tnsnames.ora file, I used to be able to connect to my started database through either ORACLE2 or TESTORACLE2 (disregard ANDREWPC). After I created a new database (oracle3) I was no longer able to connect to my starter database (db_name = oracle2, SID = firstdb2). Any ideas???
<!--- Win 98 Client --->
# C:\ORACLE\ORA81\NETWORK\ADMIN\LISTENER.ORA Configuration File:C:\Oracle\Ora81\NETWORK\ADMIN\listener.ora
# Generated by Oracle Net8 Assistant
# C:\ORACLE\ORA81\NETWORK\ADMIN\TNSNAMES.ORA Configuration File:C:\Oracle\Ora81\NETWORK\ADMIN\tnsnames.ora
# Generated by Oracle Net8 Assistant
ANDREWPC =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = productions)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = oracle.firstdb)
ORACLE2 =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = PRODUCTIONS)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = oracle2.productions2)
(INSTANCE_NAME = startdb2)
TESTORACLE2 =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = productions)(PORT = 1521))
(CONNECT_DATA =
(SID = startdb2)
<!--- Oracle WinNT Server --->
# C:\ORACLE\ORA81\NETWORK\ADMIN\LISTENER.ORA Configuration File:C:\Oracle\Ora81\network\admin\listener.ora
# Generated by Oracle Net8 Assistant
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = PRODUCTIONS)(PORT = 1521))
(DESCRIPTION =
(PROTOCOL_STACK =
(PRESENTATION = GIOP)
(SESSION = RAW)
(ADDRESS = (PROTOCOL = TCP)(HOST = PRODUCTIONS)(PORT = 2481))
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = C:\Oracle\Ora81)
(PROGRAM = extproc)
(SID_DESC =
(GLOBAL_DBNAME = oracle2.productions2)
(ORACLE_HOME = C:\Oracle\Ora81)
(SID_NAME = STARTDB2)
(SID_DESC =
(GLOBAL_DBNAME = oracle3.productions2)
(ORACLE_HOME = C:\Oracle\Ora81)
(SID_NAME = FS10)
# C:\ORACLE\ORA81\NETWORK\ADMIN\TNSNAMES.ORA Configuration File:C:\Oracle\Ora81\network\admin\tnsnames.ora
# Generated by Oracle Net8 Assistant
ORACLE3.MIA.BELLSOUTH.NET =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = PRODUCTIONS)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = oracle3.productions2)
EXTPROC_CONNECTION_DATA.MIA.BELLSOUTH.NET =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
ORACLE2.MIA.BELLSOUTH.NET =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = PRODUCTIONS)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = oracle2.productions2)
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