title: Changing default port of eureka server using spring cloud
body: <p>I got to spring-boot application, an eureka server and an eureka client.</p>
  
  <p>Here is my server configuration</p>
  
  <pre><code>server:
    port: 8761
  
  spring:
    application:
      name: eureka-server
  </code></pre>
  
  <p>Here is my server code</p>
  
  <pre><code>package fr.maif.eurekaserver;
  
  import org.springframework.boot.SpringApplication;
  import org.springframework.boot.autoconfigure.SpringBootApplication;
  import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
  import org.springframework.cloud.netflix.zuul.EnableZuulProxy;
  
  @SpringBootApplication
  @EnableEurekaServer
  @EnableZuulProxy
  public class EurekaServerApplication {
  
      public static void main(String[] args) {
          SpringApplication.run(EurekaServerApplication.class, args);
      }
  }
  </code></pre>
  
  <p>Here is the client configuration</p>
  
  <pre><code>spring:
    application:
      name: eureka-client
  server:
    port: 8083
  eureka:
    client:
      serviceUrl:
        defaultZone: "http://localhost:8761/eureka"
  </code></pre>
  
  <p>Here is my client code</p>
  
  <pre><code>package fr.maif.eurekaclient;
  
  import org.springframework.boot.SpringApplication;
  import org.springframework.boot.autoconfigure.SpringBootApplication;
  import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
  
  @SpringBootApplication
  @EnableDiscoveryClient
  public class EurekaClientApplication {
  
      public static void main(String[] args) {
          SpringApplication.run(EurekaClientApplication.class, args);
      }
  }
  </code></pre>
  
  <p>The above works perfectly while the server port remains 8761, however when I try to change it (to 8080 or any other value) both in server port &amp; client defaultZone configuration, the server continuously throws ConnectExceptions.</p>
  
  <pre><code>2017-08-10 15:54:31.424 ERROR 22219 --- [get_localhost-4] c.n.e.cluster.ReplicationTaskProcessor   : Network level connection to peer localhost; retrying after delay
  
  com.sun.jersey.api.client.ClientHandlerException: java.net.ConnectException: Connection refused (Connection refused)
      at com.sun.jersey.client.apache4.ApacheHttpClient4Handler.handle(ApacheHttpClient4Handler.java:187) ~[jersey-apache-client4-1.19.1.jar:1.19.1]
      at com.netflix.eureka.cluster.DynamicGZIPContentEncodingFilter.handle(DynamicGZIPContentEncodingFilter.java:48) ~[eureka-core-1.6.2.jar:1.6.2]
      at com.netflix.discovery.EurekaIdentityHeaderFilter.handle(EurekaIdentityHeaderFilter.java:27) ~[eureka-client-1.6.2.jar:1.6.2]
      at com.sun.jersey.api.client.Client.handle(Client.java:652) ~[jersey-client-1.19.1.jar:1.19.1]
      at com.sun.jersey.api.client.WebResource.handle(WebResource.java:682) ~[jersey-client-1.19.1.jar:1.19.1]
      at com.sun.jersey.api.client.WebResource.access$200(WebResource.java:74) ~[jersey-client-1.19.1.jar:1.19.1]
      at com.sun.jersey.api.client.WebResource$Builder.post(WebResource.java:570) ~[jersey-client-1.19.1.jar:1.19.1]
      at com.netflix.eureka.transport.JerseyReplicationClient.submitBatchUpdates(JerseyReplicationClient.java:116) ~[eureka-core-1.6.2.jar:1.6.2]
      at com.netflix.eureka.cluster.ReplicationTaskProcessor.process(ReplicationTaskProcessor.java:71) ~[eureka-core-1.6.2.jar:1.6.2]
      at com.netflix.eureka.util.batcher.TaskExecutors$BatchWorkerRunnable.run(TaskExecutors.java:187) [eureka-core-1.6.2.jar:1.6.2]
      at java.lang.Thread.run(Thread.java:748) [na:1.8.0_131]
  Caused by: java.net.ConnectException: Connection refused (Connection refused)
      at java.net.PlainSocketImpl.socketConnect(Native Method) ~[na:1.8.0_131]
      at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) ~[na:1.8.0_131]
      at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) ~[na:1.8.0_131]
      at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) ~[na:1.8.0_131]
      at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) ~[na:1.8.0_131]
      at java.net.Socket.connect(Socket.java:589) ~[na:1.8.0_131]
      at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:121) ~[httpclient-4.5.3.jar:4.5.3]
      at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:180) ~[httpclient-4.5.3.jar:4.5.3]
      at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:144) ~[httpclient-4.5.3.jar:4.5.3]
      at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:134) ~[httpclient-4.5.3.jar:4.5.3]
      at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:610) ~[httpclient-4.5.3.jar:4.5.3]
      at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:445) ~[httpclient-4.5.3.jar:4.5.3]
      at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:835) ~[httpclient-4.5.3.jar:4.5.3]
      at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:118) ~[httpclient-4.5.3.jar:4.5.3]
      at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56) ~[httpclient-4.5.3.jar:4.5.3]
      at com.sun.jersey.client.apache4.ApacheHttpClient4Handler.handle(ApacheHttpClient4Handler.java:173) ~[jersey-apache-client4-1.19.1.jar:1.19.1]
      ... 10 common frames omitted
  </code></pre>
  
  <p>What do I do wrong ?</p>