Skip to main content

WebLogic Server Connection Refused


This is a simple symptom-cause-solution blog entry only. I hope these blogs will help fellow administrators.

Symptom

The WebLogic admin or managed server is running, but telnetting to it fails, with an error like:
Trying 10.123.123.123...
telnet: connect to address 10.123.123.123: Connection refused
Cause

You may be using a development/limited license. These restrict WebLogic to accept connections from up to 5 different IP addresses and then stop accepting connections from any other IP.

If you have multiple interfaces on the server, WebLogic may be listening on one of the others. If you do not specify a listen address for a admin or managed server, it will listen on all interfaces.

Solution

Replace the dev license with a purchased one, or restart the server to clear the 5 IPs that it accepts connection from.

Change the listen address, or telnet to the correct address.

Comments

Popular posts from this blog

NullPointerException

java.lang.NullPointerException NullPointerException is described in the javadoc comments as: Thrown when an application attempts to use null in a case where an object is required. These include: Calling the instance method of a null object. Accessing or modifying the field of a null object. Taking the length of null as if it were an array. Accessing or modifying the slots of null as if it were an array. Throwing null as if it were a Throwable value. Applications should throw instances of this class to indicate other illegal uses of the null object. author: unascribed version: 1.19, 12/19/03 since: JDK1.0 Where is this exception thrown? Following, is a list of exception messages cross-referenced to the source code responsible for throwing them. Click on the method link to view the code and see how the exception is thrown. The message ' java.lang.NullPointerException: ' is thrown within the method: com.sun.corba.se.impl.interceptors.ClientRequestInfoImpl.get_r

Connection refused: No available router to destination

This is a simple symptom-cause-solution blog entry only. I hope these blogs will help fellow administrators. Symptom The following exception occurs in WebLogic server logs. Most likely to occur during WebLogic server start-up, but similar exceptions may occur at other times. java.net.ConnectException: t3://myserver:8000: Destination unreachable; nested exception is: java.net.ConnectException: Connection refused: connect; No available router to destination] at weblogic.jndi.internal.ExceptionTranslator.toNamingException(ExceptionTranslator.java:49) at weblogic.jndi.WLInitialContextFactoryDelegate.toNamingException(WLInitialContextFactoryDelegate.java:773) at weblogic.jndi.WLInitialContextFactoryDelegate.getInitialContext(WLInitialContextFactoryDelegate.java:363) at weblogic.jndi.Environment.getContext(Environment.java:307) at weblogic.jndi.Environment.getContext(Environment.java:277) Cause This message (Connection refused: connect; No available

SocketException

java.net.SocketException SocketException is described in the javadoc comments as: Thrown to indicate that there is an error in the underlying protocol, such as a TCP error. author: Jonathan Payne version: 1.17, 12/19/03 since: JDK1.0 Where is this exception thrown? Following, is a list of exception messages cross-referenced to the source code responsible for throwing them. Click on the method link to view the code and see how the exception is thrown. The message ' java.net.SocketException: ... ' is thrown within the method: java.net.ServerSocket.createImpl() The message ' java.net.SocketException: ... ' is thrown within the method: java.net.Socket.createImpl(boolean) The message ' java.net.SocketException: ... ' is thrown within the method: java.net.SocksSocketImpl.connect(SocketAddress, int) The message ' java.net.SocketException: ... ' is thrown within the method: java.net.SocksSocketImpl.socksBind(InetSocketAddress) The message