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Full Discussion: Tcp connection to Linux server fails
Top Forums UNIX for Dummies Questions & Answers Tcp connection to Linux server fails Post 302892184 by bakunin on Tuesday 11th of March 2014 10:42:12 AM
Old 03-11-2014
To be honest i do not know your application, but:
Quote:
Originally Posted by unienewbie
No connection could be made because the target machine actively refused it xxx.xxx.xxx.131:1521
this looks like you have to do some configuration work in your application. For a host to open a connection it has to have a daemon running which is listening to the port where the connection is attempted.

For instance: let's say you contact a web server. This means your browser creates a message, sends it to the target server, port 80 (or whatever is configured, but 80 is the default). Behind port 80 on the target server lurks the web server process (Apache, ...), which picks the message up, does something and sends a message back (like: serves up a web page). If the web server would not listen behind port 80, nothing would happen at all - the host would "refuse the connection".

This is why i think you simply have nobody listening behind port 1521, so that no connection comes to pass.

I hope this helps.

bakunin
 

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LEARN ABOUT SUNOS

asadmin-list-connection-groups

asadmin-list-connection-groups(1AS)				   User Commands			       asadmin-list-connection-groups(1AS)

NAME

       list-connection--groups - gets the connection groups

SYNOPSIS

       list-connection-groups  --user  user_name   --password  password   --host  hostname   --port  admin_port_number	 --instance  instance_name
       http_listener_ID

       Gets the profiler element associated with the named server instance..

OPTIONS

       --user  identifies the user name associated with the named instance.

       --password  identifies the password associated with the user name.

       --host  identifies the host name for the machine.

       --port  identifies the administrator port number associated with the hostname.

       --instance  identifies the name of the instance associated with the JVM option to be created.

       http_listener_ID  a unique identifier for the HTTP listener.

       asadmin% list-connection-groups

INTERFACE EQUIVALENT

       unknown

       asadmin-create-connection-group(1AS) asadmin-delete-connection-group(1AS)

J2EE 1.4 SDK							    March 2004				       asadmin-list-connection-groups(1AS)
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