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Changing connection string host from localhost to IP address produces error

784541Jul 14 2010 — edited Jul 20 2010

Hi all,

First of all, thanks in advance for your help. Second, I know next to nothing about Oracle database administration, so please be patient, but I want to understand things, rather than just running down the Google rabbit hole with guess-and-check until things happen to work and I don't know why.

I've got a connection string that I'm using to connect to a local Oracle database I'm using for testing. I have the 11g installed and the 11.1.0.7 64-bit client (as my application is a 64-bit application) installed, both locally on my development machine. I've got a connection working using the following connection string:

Data Source=(DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))(CONNECT_DATA = (SERVER = DEDICATED)(SERVICE_NAME = mywindowslogin.path.to.me)));User Id=********;Password=********;

However, when I change "localhost" to my IP address, my computer name, or anything else, I get "ORA-12541: TNS:no listener".

The tnsnames.ora in my database home is as follows - it was set up for me automatically when I installed the database. mywindowslogin.path.to.me doesn't point to anywhere, which I assume is correct, but my computer is on the path.to.me domain.

LISTENER_MYWINDOWSLOGIN =
  (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))


ORACLR_CONNECTION_DATA =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
    )
    (CONNECT_DATA =
      (SID = CLRExtProc)
      (PRESENTATION = RO)
    )
  )

MYWINDOWSLOGIN =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = mywindowslogin.path.to.me)
    )
  )

How can I resolve this issue?

Edited by: Don on Jul 14, 2010 8:31 AM

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Locked on Aug 17 2010
Added on Jul 14 2010
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