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?

  • That's the default location; however, if you set the TNS_ADMIN environment variable, that location will be used instead.
    – Adam Musch
    Jun 25, 2013 at 13:47
  • I could find it here: C:\USER_NAME\product\11.2.0\dbhome_1\NETWORK\ADMIN Nov 2, 2018 at 9:07

1 Answer 1


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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