Re: port forwarding and oracle

From: David Roman Esteban (droman_at_plcendesa.com)
Date: 10/26/04

  • Next message: Chris Cheshire: "Re: port forwarding and oracle"
    Date: Tue, 26 Oct 2004 09:32:33 +0200
    To: Chris Cheshire <ccheshire@bigredwire.com>
    
    

    I've done this successfully without problems between a winnt and oracle
    8.1.7 this is my config:
    listener.ora in the Solaris server:
    lst_estad =
      (DESCRIPTION_LIST =
        (DESCRIPTION =
          (ADDRESS_LIST =
            (ADDRESS = (PROTOCOL = TCP)(HOST=whatever)(PORT = 1528))
          )
        )
      )

    SID_LIST_lst_estad =
      (SID_LIST =
        (SID_DESC =
          (GLOBAL_DBNAME = ESTAD)
          (ORACLE_HOME = /opt/oracle/product/8.1.7)
          (SID_NAME = ESTAD)
        )
      )

    STARTUP_WAIT_TIME_lst_estad = 0
    CONNECT_TIMEOUT_lst_estad = 10

    The tnsnames.ora on the localmachine is:
    ESTAD_TUNNEL =
      (DESCRIPTION =
        (ADDRESS_LIST =
          (ADDRESS = (PROTOCOL = TCP)(HOST = LOCALHOST)(PORT = 1702))
        )
        (CONNECT_DATA =
          (SID = ESTAD)
        )

    Making a tunnel with cygwin with this line, i think this is your problem:
     ssh -L 1702:localhost:1528 root@whatever

    you can do this:
    C:\oracle\ora81\network\ADMIN>tnsping estad_tunnel
    TNS Ping Utility for 32-bit Windows: Version 8.1.7.0.0 - Production on
    26-OCT-2004 09:25:55
    (c) Copyright 1997 Oracle Corporation. All rights reserved.
    Attempting to contact (ADDRESS=(PROTOCOL=TCP)(HOST=LOCALHOST)(PORT=1702))
    Realizado correctamente (440 mseg)

    Best regards
    David Roman Esteban

    Chris Cheshire wrote:

    > Has anyone got port forwarding to work with an oracle database?
    >
    > I have OpenSSH 3.9p1 on my database server (Oracle 8i running Solaris
    > 2.6) and my client is a PowerBook (running OSX 10.3.5) with OpenSSH
    > 3.6p1 (I wish apple would update this) and when I try to set up the
    > port forward the connection (using java thin client drivers) through
    > it times out. Running the following from the client :
    >
    > ssh -v -L 2521:dbserver:1521 user@dbserver
    >
    > connects successfully and starts up a shell and then when I connect
    > using the java thin client () I get :
    >
    > debug1: Connection to port 2521 forwarding to dbserver port 1521
    > requested.
    > debug1: channel 3: new [direct-tcpip]
    > debug1: channel 3: open confirm rwindow 131072 rmax 32768
    > debug1: channel 3: read<=0 rfd 9 len 0
    > debug1: channel 3: read failed
    > debug1: channel 3: close_read
    > debug1: channel 3: input open -> drain
    > debug1: channel 3: rcvd eof
    > debug1: channel 3: output open -> drain
    > debug1: channel 3: obuf empty
    > debug1: channel 3: close_write
    > debug1: channel 3: output drain -> closed
    > debug1: channel 3: ibuf empty
    > debug1: channel 3: send eof
    > debug1: channel 3: input drain -> closed
    > debug1: channel 3: send close
    > debug1: channel 3: rcvd close
    > debug1: channel 3: is dead
    > debug1: channel 3: garbage collecting
    > debug1: channel_free: channel 3: direct-tcpip: listening port 2521 for
    > dbserver port 1521, connect from 127.0.0.1 port 49818, nchannels 4
    >
    >
    > All this happens almost immediately, and the connection takes a
    > further minute or so to time out.
    >
    > Any suggestions?
    >
    > Thanks
    >
    > Chris
    >
    >

    -- 
    Un saludo
    David Román Esteban
    droman@plcendesa.com
    (+34)669229194
    

  • Next message: Chris Cheshire: "Re: port forwarding and oracle"

    Relevant Pages

    • RE: ADO.Net Connection Pooling Problem with Oracle
      ... the CLR is releasing the connection to your database. ... the number of database sessions in Oracle seem to ...
      (microsoft.public.dotnet.framework.adonet)
    • RE: SOS! ORA-03114: not connected to ORACLE && MSs Bug??
      ... not connected to ORACLE && MS's Bug?? ... > but sometimes returning the following exception "ORA-03114: ... > when loosing the connection with the Oracle database server the connections ... > even after the connection with the database server has been restore. ...
      (microsoft.public.dotnet.languages.csharp)
    • RE: SOS! ORA-03114: not connected to ORACLE && MSs Bug??
      ... not connected to ORACLE && MS's Bug?? ... > but sometimes returning the following exception "ORA-03114: ... > when loosing the connection with the Oracle database server the connections ... > even after the connection with the database server has been restore. ...
      (microsoft.public.dotnet.framework.aspnet)
    • RE: SOS! ORA-03114: not connected to ORACLE && MSs Bug??
      ... not connected to ORACLE && MS's Bug?? ... > but sometimes returning the following exception "ORA-03114: ... > when loosing the connection with the Oracle database server the connections ... > even after the connection with the database server has been restore. ...
      (microsoft.public.dotnet.framework.adonet)
    • Re: Connecting to ODBC DB at startup
      ... Creating an Oracle connection in an independent object ... Dim cnConn As ADODB.Connection ... Dim strDB As String ...
      (comp.databases.ms-access)