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TNSPING falied from client but TELNET to the DB port is available

JibuSep 7 2012 — edited Sep 7 2012

Hi,

My ORACLE DB (oralce 11g R2 - ruinning in windows2003 Server OS ) and Application ( Windows 2003 server OS ) are running in different machies. Between these machines, i have a firewall. I have modifed the firewall to access the 1521 port of DB machine from application machine. DB is UP and running in 1521 port of DB_Machine. I have installed oracle_11g client in application machine. I am able to telnet to DB_Machine's 1521 port from application machine. But, tnsping to DB machine is not connecting. It is showing the following error:

ORA-12170: TNS:Connect timeout occurred

So, i tried to to connect using sqldeveloper..It is also getting timed out

Please help....

Regards,
jibu

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Locked on Oct 5 2012

Added on Sep 7 2012

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