Can you ping the host? When I have a connectivity problem, I follow a set procedure that saves lots of time in the long run.
1) ping host 2) tnsping sid 3) sqlplus user/name@sid 4) wing it (i.e. ODBC problem or other client program that won't connect). If step 1 fails, you can try pinging using the IP address also. I usually look for help from the network folk at this point. If step 1 succeeds and step 2 fails, I start investigating my tnsnames.ora file and the status of the listener on the server. If steps 1&2 succeed and step 3 fails, it is time to make sure the database is up and the user is valid. It is rare that the diagnosis actually gets this far. Step 4 is the catchall. Very rare, except during ODBC setup. I think I've dealt with this once or twice and I'm sure it was a different problem each time. Kevin Kennedy First Point Energy Corporation -----Original Message----- Sent: Wednesday, July 03, 2002 4:28 AM To: Multiple recipients of list ORACLE-L Hi, I am not able to connect from my oracle client to an oracle db server (NT) When i try to configure and test for the ora service(from my work station) it says "Connecting...ORA-12545: Connect failed because target host or object does not exist The test did not succeed.(this particular ora instance is not connectable from any workstation) " Thanks in Advance K. -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: karthikeyan S INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: kkennedy INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
