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I installed Oracle client for my Windows 7 machine. I can connect to a remote Oracle database using Toad for Oracle using the direct method (giving host, port and service name for the connection).

Now I tried to find the tnsnames.ora file from the Oracle client oracle home, but could not find it. I could not find a NETWORK\ADMIN folder in ORACLE_HOME (C:\app\myaccount\product\11.2.0\client_1).

Where is this file located?

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marked as duplicate by dezso, Mat, Jon Seigel, StanleyJohns, Kin Jun 25 '13 at 14:43

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That's the default location; however, if you set the TNS_ADMIN environment variable, that location will be used instead. –  Adam Musch Jun 25 '13 at 13:47

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At least for older releases, I'd generally just create my own. It's a plain text file but you probably need to start with an example.

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