Connection to remote database failed

Question

I have configured the cman.ora file and changed the connection
string for the java applet, but I encountered the error
"The NT Adapter could not establish the connection" when I tried
to connect to remote database from JDev2.0(beta).
Any ideas of what are the possible causes for this?
At the cman.ora file, the setting are:
cman = (ADDRESS_LIST=
(ADDRESS=(PROTOCOL=tcp)(HOST=<web_host_ip>)(PORT=1610))
(ADDRESS=(PROTOCOL=tcp)(HOST=<db_host_ip>)(PORT=1521))
cman_profile = (parameter_list=
(MAXIMUM_RELAYS=1024)
(LOG_LEVEL=1)
(TRACING=yes)
(RELAY_STATISTICS=yes)
(SHOW_TNS_INFO=yes)
(USE_ASYNC_CALL=yes)
(AUTHENTICATION_LEVEL=0)
At the java applet the connection statement are:
DriverManager.registerDriver (new
oracle.jdbc.driver.OracleDriver());
Connection conn =
DriverManager.getConnection ("jdbc:oracle:thin:" +
"@(description=(address_list=" +
"(address=(protocol=tcp)(host=<web_host_ip>)(port=1610))" +
"(address=(protocol=tcp)(host=<db_host_ip>)(port=1521)))" +
"(source_route=yes)" +
"(connect_data=(sid=<orasid>)))", "<user>", "<id>");
The error at the dos prompt running from JDev2 are:
java.sql.SQLException: The NT Adapter could not establish the
connection
at oracle.jdbc.dbaccess.DBError.check_error(Compiled
Code)
at oracle.jdbc.driver.OracleConnection.<init>(Compiled
Code)
at oracle.jdbc.driver.OracleDriver.connect(Compiled Code)
at java.sql.DriverManager.getConnection(Compiled Code)
at java.sql.DriverManager.getConnection(Compiled Code)
at test.Applet1.jbInit(Compiled Code)
at test.Applet1.init(Compiled Code)
at sun.applet.AppletPanel.run(Compiled Code)
at java.lang.Thread.run(Compiled Code)
Thanks,
Eye Gee
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Answer 1

I am able to connect to the remote database using SQL*plus but
does it means it is using CMAN connection?
How do I test the CMAN connection from SQL*plus? Any example for
me to follow?
Thanks,
Eye Gee
mark tomlinson (guest) wrote:
: Have you tried using the CMAN connection from something like
: SQL*plus to verify that it is configured correctly? Everything
: looks correct, so it might be hiding an actual NET error
: underneath.
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