Oracle-L: RE: Strange ORA-12545 ??

From: Odland, Brad <Brad.Odland_at_qtiworld.com>
Date: Fri, 11 Apr 2003 10:48:02 -0800
Message-ID: <F001.0057FAD5.20030411104802@fatcity.com>

Net8 configuration confusion most likely...

tnsnames.ora probably does not have an alias or service name entry or it is invalid.

case 1: tnsnames.ora on that machine is valid

Read Net8 administrators guide. So you make sure you understand tnsnames.ora, listner.ora and sqlnet.ora files.

caes 2: where are you changing the port...?? in listener.ora or tnsames.ora

make sure you know what database you are connecting to...with select name from V$database

are the host names the same as you instance names?

tnsping only pings the listener it does not ping the databse.

ping pings the host.

-----Original Message-----
Sent: Friday, April 11, 2003 9:37 AM
To: Multiple recipients of list ORACLE-L

Guys,

Machine OSRV - Win2K Adv. Server with 8.1.6. oracle server ; listener port is 21717

oracle was newly installed and IMPorted a database.

Machine OCLT - RH linux 6.2 machine with 8.1.5 oracle client

though,

	PING is OK from OCLT to OSRV.
	TNSPING is OK from OCLT to OSRV.

I am not able to connect from SQLPLUS on OCLT to OSRV.

The Error was ORA-12545 Connect failed because target host or object does not exist

CASE 1# but i am able to connect to OSRV from oracle client on another windows machine.
AND
CASE 2# if i change the LISTENERT PORT on OSRV to 21818, i am able to connect from OCLT (using SQLPLUS) to OSRV.

what may be the reason for CASE #1 and CASE #2 ?? why is it so ?

Moreover in the Listener log of OSRV , i found :

10-APR-2003 09:28:57 * service_register * memb * 0
10-APR-2003 09:35:39 * service_died * memb * 12547
TNS-12547: TNS: lost contact

what does this mean ?

help me guys.this needs to be solved soon.

TIA.
Prem.

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Author: Prem Khanna J
INET: jprem_at_kssnet.co.jp

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Author: Odland, Brad
INET: Brad.Odland_at_qtiworld.com

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