title: SSLHandshakeE E SSLC0008E: Unable to initialize SSL connection. Unauthorized access was denied or security settings have expired
body: <p>We are getting the following error message in SystemOut.log :</p>
  
  <pre><code>SSLHandshakeE E   SSLC0008E: Unable to initialize SSL connection.  Unauthorized access was denied or security settings have expired.  Exception is javax.net.ssl.SSLException: Received fatal alert: certificate_unknown
      at com.ibm.jsse2.o.a(o.java:9)
      at com.ibm.jsse2.SSLEngineImpl.a(SSLEngineImpl.java:294)
      at com.ibm.jsse2.SSLEngineImpl.a(SSLEngineImpl.java:172)
      at com.ibm.jsse2.SSLEngineImpl.j(SSLEngineImpl.java:12)
      at com.ibm.jsse2.SSLEngineImpl.b(SSLEngineImpl.java:113)
      at com.ibm.jsse2.SSLEngineImpl.a(SSLEngineImpl.java:476)
      at com.ibm.jsse2.SSLEngineImpl.unwrap(SSLEngineImpl.java:95)
      at javax.net.ssl.SSLEngine.unwrap(SSLEngine.java:14)
      at com.ibm.ws.ssl.channel.impl.SSLUtils.handleHandshake(SSLUtils.java:1016)
      at com.ibm.ws.ssl.channel.impl.SSLConnectionLink.readyInbound(SSLConnectionLink.java:566)
      at com.ibm.ws.ssl.channel.impl.SSLConnectionLink.ready(SSLConnectionLink.java:295)
      at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214)
      at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113)
      at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:165)
      at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)
      at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)
      at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138)
      at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204)
      at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775)
      at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905)
      at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1646)
  </code></pre>
  
  <p>There are two servers 'A' and 'B', 'A' is trying to communicate with B to get the data. (A Web application is deployed in 'A' and it is trying to communicate with 'B').</p>
  
  <p>Can anyone help resolve this?</p>