Not able to connect remote oracle database over VPN

I can not connect remote oracle database over VPN. tnsping is ok and it shows the server information of remote database. i can also telnet the 1521 port of remote database server. I can connect the same server when it is located in the same LAN. Please help me out this is very urgent.

6b6c669e-6baa-45c4-a6dc-444aef2d5e7a wrote:
I can not connect remote oracle database over VPN. tnsping is ok and it shows the server information of remote database. i can also telnet the 1521 port of remote database server. I can connect the same server when it is located in the same LAN. Please help me out this is very urgent.
First, this is a forum of volunteers.  There is no "urgent" here.
"Urgent" means one of two things -
1) people are dying, or
2) you have a customer-facing, revenue-producing production system that is down.
(And to get some perspective on the second case, keep the first in mind.)
For the first, you call whatever civil emergency service seems appropriate.
For the second, you open an SR with Oracle - which requires a paid-up support contract. For *them* to consider your problem "urgent", you will need to demonstrate that your problem falls under item #2. I seriously doubt your problem fits that criteria.
You don't have a support contract?  Now you know the exact dollar figure that your company places on the data.
That said, you need to understand a few things about your specific problem,
First, port 1521 is only used by the listener to accept a connection request.  Once it gets that request (and finds that it is for a service (sid) that it knows about, it will fork a server process and tell the requesting client that it can communicate with that server process over some other port .. a randomly chosen port number in the "high" range.  It could be your vpn is blocking that other port, whereas your internal firewall is not.
But this is just an educated guess since I cannot find "can not connect remote oracle database over VPN" in any error message manual. If you had mentioned the VPN along with an actual oracle error message we could be much more precise in our diagnoses and recommendations.
---- edit 22 Sep
It occurred to me that I just assumed you were using the same client machine in both cases ... a laptop that you use both at work (local network) and home (vpn).  If that assumption is false, there are probably problems with your tns setup on the home (vpn) machine.
But again, it would be much easier to help if you gave us an actual error message.

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    2011-09-08 16:49:04,679 Thread-464 ERROR pingManager: nmepm_pingReposURL: Did not receive a response header from repository
    2011-09-08 16:49:34,787 Thread-2180 ERROR pingManager: nmepm_pingReposURL: Did not receive a response header from repository
    2011-09-08 16:49:34,880 Thread-2180 ERROR pingManager: nmepm_pingReposURL: Did not receive a response header from repository
    emdctl.trc
    2011-09-08 16:30:39,990 Thread-3032 ERROR main: nmectla_agentctl: Error connecting to http://PC1.home.com:3938/emd/main. Returning status code 1
    emos.trc
    16:53:06,215 [HTTPThreadGroup-2] ERROR conn.ConnectionService verifyRepositoryEx.891 - Invalid Connection Pool. ERROR = Locale not recognized
    2011-09-08 16:53:06,262 [HTTPThreadGroup-2] ERROR eml.OMSHandshake processFailure.806 - OMSHandshake failed.(AGENT URL = https://PC1.home.com:3938/emd/main)(ERROR = INTERNAL_ERROR)(CAUSE =java.sql.SQLException: Locale not recognized)
    2011-09-08 16:53:06,324 [HTTPThreadGroup-2] ERROR conn.ConnectionService verifyRepositoryEx.891 - Invalid Connection Pool. ERROR = Locale not recognized
    2011-09-08 16:53:06,371 [HTTPThreadGroup-2] ERROR eml.OMSHandshake processFailure.806 - OMSHandshake failed.(AGENT URL = https://PC1.home.com:3938/emd/main)(ERROR = INTERNAL_ERROR)(CAUSE =java.sql.SQLException: Locale not recognized)

  • Enterprice manager is not able to connect to the database instance

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    # listener.ora Network Configuration File: C:\oracle\product\10.2.0\db_1\network\admin\listener.ora
    # Generated by Oracle configuration tools.
    SID_LIST_LISTENER =
    (SID_LIST =
    (SID_DESC =
    (SID_NAME = PLSExtProc)
    (ORACLE_HOME = C:\oracle\product\10.2.0\db_1)
    (PROGRAM = extproc)
    LISTENER =
    (DESCRIPTION_LIST =
    (DESCRIPTION =
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    SZDTEST =
    (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = oracle)(PORT = 1521))
    (CONNECT_DATA =
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    (SERVICE_NAME = szdtest.localhost)
    SZD =
    (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = oracle)(PORT = 1521))
    (CONNECT_DATA =
    (SERVER = DEDICATED)
    (SERVICE_NAME = szd)
    TEST =
    (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = oracle)(PORT = 1521))
    (CONNECT_DATA =
    (SERVER = DEDICATED)
    (SERVICE_NAME = test)
    ORCL =
    (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = oracle)(PORT = 1521))
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    (SERVER = DEDICATED)
    (SERVICE_NAME = orcl)
    EXTPROC_CONNECTION_DATA =
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    (PRESENTATION = RO)
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    yes DBConsole services are started:
    OracleDBConsoleorcl running
    OracleDBConsoleszd running
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    Oracle Enterprise Manager 10g Database Control Release 10.2.0.1.0
    Copyright (c) 1996, 2005 Oracle Corporation. All rights reserved.
    http://ORACLE:5502/em/console/aboutApplication
    Oracle Enterprise Manager 10g is running.
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    Oracle Enterprise Manager 10g Database Control Release 10.2.0.1.0
    Copyright (c) 1996, 2005 Oracle Corporation. All rights reserved.
    http://ORACLE:5502/em/console/aboutApplication
    Agent Version : 10.1.0.4.1
    OMS Version : Unknown
    Protocol Version : 10.1.0.2.0
    Agent Home : C:\oracle\product\10.2.0\db_1\ORACLE_szd
    Agent binaries : C:\oracle\product\10.2.0\db_1
    Agent Process ID : 2960
    Agent Process ID : 2960
    Agent URL : http://ORACLE:1832/emd/main
    Started at : 2010-06-25 09:58:05
    Started by user : SYSTEM
    Last Reload : 2010-06-25 09:59:53
    Last successful upload : (none)
    Last attempted upload : (none)
    Total Megabytes of XML files uploaded so far : 0.00
    Number of XML files pending upload : 244
    Size of XML files pending upload(MB) : 1.56
    Available disk space on upload filesystem : 55.04%
    Agent is already started. Will restart the agent
    This will stop the Oracle Enterprise Manager 10g Database Control process. Continue [y/n] :
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    EM was started and I see this message and that database is open and listener is up and agent connection to instance is succed
    Edited by: user515960 on 2010-06-25 01:08
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    ORA-06550: linia 1, kolumna 7:
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    PLS-00201: identyfikator 'SETEMUSERCONTEXT' powinien być zadeklarowany
    ORA-06550: linia 1, kolumna 7:
    PL/SQL: Statement ignored
    2010-06-25 11:38:45,875 [HttpRequestHandler-23814595] ERROR eml.OMSHandshake processFailure.619 - OMSHandshake failed.(AGENT URL = http://ORACLE:1832/emd/main)(ERROR = INTERNAL_ERROR)
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    PLS-00201: identyfikator 'SETEMUSERCONTEXT' powinien być zadeklarowany
    ORA-06550: linia 1, kolumna 7:
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    2010-06-25 11:39:00,968 [HttpRequestHandler-23814595] ERROR conn.ConnectionService verifyRepositoryEx.433 - Invalid Connection Pool. ERROR = ORA-06550: linia 1, kolumna 7:
    PLS-00201: identyfikator 'SETEMUSERCONTEXT' powinien być zadeklarowany
    ORA-06550: linia 1, kolumna 7:
    PL/SQL: Statement ignored
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         at com.evermind.server.http.ServletRequestDispatcher.forward(ServletRequestDispatcher.java:211)
         at oracle.sysman.emSDK.svlt.PageHandler.render(PageHandler.java:773)
         at oracle.sysman.emSDK.svlt.PageHandler.handleRequest(PageHandler.java:396)
         at oracle.sysman.emSDK.svlt.EMServlet.myDoGet(EMServlet.java:688)
         at oracle.sysman.emSDK.svlt.EMServlet.doGet(EMServlet.java:291)
         at oracle.sysman.eml.app.Console.doGet(Console.java:135)
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         at oracle.sysman.emSDK.svlt.EMRedirectFilter.doFilter(EMRedirectFilter.java:101)
         at com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:16)
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         at com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20)
         at oracle.sysman.eml.app.ContextInitFilter.doFilter(ContextInitFilter.java:239)
         at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:600)
         at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:317)
         at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:793)
         at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:270)
         at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:112)
         at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:192)
         at java.lang.Thread.run(Thread.java:534)
    2010-06-25 11:39:01,078 [HttpRequestHandler-23814595] ERROR conn.ConnectionService verifyRepositoryEx.433 - Invalid Connection Pool. ERROR = ORA-06550: linia 1, kolumna 7:
    PLS-00201: identyfikator 'SETEMUSERCONTEXT' powinien być zadeklarowany
    ORA-06550: linia 1, kolumna 7:
    PL/SQL: Statement ignored
    2010-06-25 11:39:01,093 [EMUI_11_39_01_/console/aboutApplication] ERROR em.console doGet.311 - java.lang.IllegalStateException: Response has already been committed
    java.lang.IllegalStateException: Response has already been committed
         at com.evermind.server.http.EvermindHttpServletResponse.resetBuffer(EvermindHttpServletResponse.java:1901)
         at com.evermind.server.http.ServletRequestDispatcher.forward(ServletRequestDispatcher.java:211)
         at oracle.sysman.emSDK.svlt.PageHandler.render(PageHandler.java:773)
         at oracle.sysman.emSDK.svlt.PageHandler.handleRequest(PageHandler.java:396)
         at oracle.sysman.emSDK.svlt.EMServlet.myDoGet(EMServlet.java:688)
         at oracle.sysman.emSDK.svlt.EMServlet.doGet(EMServlet.java:291)
         at oracle.sysman.eml.app.Console.doGet(Console.java:135)
         at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
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         at com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65)
         at oracle.sysman.emSDK.svlt.EMRedirectFilter.doFilter(EMRedirectFilter.java:101)
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    PLS-00201: identyfikator 'SETEMUSERCONTEXT' powinien być zadeklarowany
    ORA-06550: linia 1, kolumna 7:
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    PLS-00201: identyfikator 'SETEMUSERCONTEXT' powinien być zadeklarowany
    ORA-06550: linia 1, kolumna 7:
    PL/SQL: Statement ignored
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    ORA-06550: linia 1, kolumna 7:
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    PLS-00201: identyfikator 'SETEMUSERCONTEXT' powinien być zadeklarowany
    ORA-06550: linia 1, kolumna 7:
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    2010-06-25 11:39:05,812 [HttpRequestHandler-23814595] ERROR conn.ConnectionService verifyRepositoryEx.433 - Invalid Connection Pool. ERROR = ORA-06550: linia 1, kolumna 7:
    PLS-00201: identyfikator 'SETEMUSERCONTEXT' powinien być zadeklarowany
    ORA-06550: linia 1, kolumna 7:
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    2010-06-25 11:39:05,843 [HttpRequestHandler-23814595] ERROR eml.OMSHandshake getParameterFromDB.402 - ORA-06550: linia 1, kolumna 7:
    PLS-00201: identyfikator 'SETEMUSERCONTEXT' powinien być zadeklarowany
    ORA-06550: linia 1, kolumna 7:
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    2010-06-25 11:39:05,843 [HttpRequestHandler-23814595] ERROR eml.OMSHandshake processFailure.619 - OMSHandshake failed.(AGENT URL = http://ORACLE:1832/emd/main)(ERROR = INTERNAL_ERROR)
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    PLS-00201: identyfikator 'SETEMUSERCONTEXT' powinien być zadeklarowany
    ORA-06550: linia 1, kolumna 7:
    PL/SQL: Statement ignored
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         at oracle.sysman.emSDK.svlt.EMServlet.doGet(EMServlet.java:291)
         at oracle.sysman.eml.app.Console.doGet(Console.java:135)
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         at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:600)
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    ORA-06550: linia 1, kolumna 7:
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         at oracle.sysman.emSDK.svlt.PageHandler.render(PageHandler.java:773)
         at oracle.sysman.emSDK.svlt.PageHandler.handleRequest(PageHandler.java:396)
         at oracle.sysman.emSDK.svlt.EMServlet.myDoGet(EMServlet.java:688)
         at oracle.sysman.emSDK.svlt.EMServlet.doGet(EMServlet.java:291)
         at oracle.sysman.eml.app.Console.doGet(Console.java:135)
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         at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:317)
         at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:793)
         at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:270)
         at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:112)
         at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:192)
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    Edited by: user515960 on 2010-06-25 02:41

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    +(DESCRIPTION =+
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