# Kibana 6.5 Status code 500 **URL:** \ **Category:** Elasticsearch\ **Created:** [December 6, 2018, 6:03am UTC](https://discuss.elastic.co/t/kibana-6-5-status-code-500/159656 "2018-12-06T06:03:23Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Amit\_Hora](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/amit_hora/32/45312_2.png) [@Amit\_Hora](https://discuss.elastic.co/u/Amit_Hora)\ **Post date:** [December 6, 2018, 6:03am UTC](https://discuss.elastic.co/t/kibana-6-5-status-code-500/159656/1 "2018-12-06T06:03:24Z")
After upgrading ES/Kibana from version 5.6 to 6.5 I am facing few problems. When i try to access Kibana URL I get this error ![image](https://us1.discourse-cdn.com/elastic/original/3X/b/2/b29163d6005a00e29671d602b261e6e888d08c31.png) Below are the logs in Kibana {"type":"log","@timestamp":"2018-12-06T05:55:28Z","tags":["listening","info"],"pid":31181,"message":"Server running at [https://XXXX:5601](https://XXXX:5601)"} {"type":"log","@timestamp":"2018-12-06T05:55:30Z","tags":["status","plugin:security@6.5.1","info"],"pid":31181,"state":"green","message":"Status changed from yellow to green - Ready","prevState":"yellow","prevMsg":"Waiting for Elasticsearch"} {"type":"log","@timestamp":"2018-12-06T05:55:30Z","tags":["status","plugin:spaces@6.5.1","info"],"pid":31181,"state":"green","message":"Status changed from yellow to green - Ready","prevState":"yellow","prevMsg":"Waiting for Elasticsearch"} When I check the logs in Elasticsearch , I see something like this ``` [2018-12-06T05:55:59,281][WARN][o.e.x.s.t.n.SecurityNetty4HttpServerTransport] [stage-es4] caught exception while handling client http traffic, closing connection [id: 0xac05acc8, L:0.0.0.0/0.0.0.0:9200 ! R:/XXXX:27740] io.netty.handler.codec.DecoderException: javax.net.ssl.SSLHandshakeException: null cert chain at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:472) ~[netty-codec-4.1.30.Final.jar:4.1.30.Final] at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:278) ~[netty-codec-4.1.30.Final.jar:4.1.30.Final] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [netty-transport-4.1.30.Final.jar:4.1.30.Final] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [netty-transport-4.1.30.Final.jar:4.1.30.Final] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [netty-transport-4.1.30.Final.jar:4.1.30.Final] at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1434) [netty-transport-4.1.30.Final.jar:4.1.30.Final] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [netty-transport-4.1.30.Final.jar:4.1.30.Final] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [netty-transport-4.1.30.Final.jar:4.1.30.Final] at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:965) [netty-transport-4.1.30.Final.jar:4.1.30.Final] at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163) [netty-transport-4.1.30.Final.jar:4.1.30.Final] at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:644) [netty-transport-4.1.30.Final.jar:4.1.30.Final] at io.netty.channel.nio.NioEventLoop.processSelectedKeysPlain(NioEventLoop.java:544) [netty-transport-4.1.30.Final.jar:4.1.30.Final] at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:498) [netty-transport-4.1.30.Final.jar:4.1.30.Final] at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:458) [netty-transport-4.1.30.Final.jar:4.1.30.Final] at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:897) [netty-common-4.1.30.Final.jar:4.1.30.Final] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_191] Caused by: javax.net.ssl.SSLHandshakeException: null cert chain at sun.security.ssl.Handshaker.checkThrown(Handshaker.java:1521) ~[?:?] at sun.security.ssl.SSLEngineImpl.checkTaskThrown(SSLEngineImpl.java:528) ~[?:?] at sun.security.ssl.SSLEngineImpl.readNetRecord(SSLEngineImpl.java:802) ~[?:?] at sun.security.ssl.SSLEngineImpl.unwrap(SSLEngineImpl.java:766) ~[?:?] at javax.net.ssl.SSLEngine.unwrap(SSLEngine.java:624) ~[?:1.8.0_191] at io.netty.handler.ssl.SslHandler$SslEngineType$3.unwrap(SslHandler.java:294) ~[netty-handler-4.1.30.Final.jar:4.1.30.Final] at io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:1297) ~[netty-handler-4.1.30.Final.jar:4.1.30.Final] at io.netty.handler.ssl.SslHandler.decodeJdkCompatible(SslHandler.java:1199) ~[netty-handler-4.1.30.Final.jar:4.1.30.Final] at io.netty.handler.ssl.SslHandler.decode(SslHandler.java:1243) ~[netty-handler-4.1.30.Final.jar:4.1.30.Final] at io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:502) ~[netty-codec-4.1.30.Final.jar:4.1.30.Final] at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:441) ~[netty-codec-4.1.30.Final.jar:4.1.30.Final] ... 15 more ``` When I do a curl command with the same set of Self Signed certificates I can see the appropriate output `curl -k -XGET -u aa:aaa3 https://XXX:9200/_cluster/health --cert /usr/share/kibana/client-certs/client.crt --key /usr/share/kibana/client-certs/client.key` Any pointers will be of a great help!. Regards, Amit Singh Hora ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [January 3, 2019, 6:03am UTC](https://discuss.elastic.co/t/kibana-6-5-status-code-500/159656/2 "2019-01-03T06:03:36Z")
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