Here is my kibana.log
{"type":"log","@timestamp":"2018-04-16T21:39:55Z","tags":["status","plugin:kibana@6.0.0","info"],"pid":20928,"state":"green","message":"Status changed from uninitialized to green - Ready","prevState":"uninitialized","prevMsg":"uninitialized"}
{"type":"log","@timestamp":"2018-04-16T21:39:55Z","tags":["status","plugin:elasticsearch@6.0.0","info"],"pid":20928,"state":"yellow","message":"Status changed from uninitialized to yellow - Waiting for Elasticsearch","prevState":"uninitialized","prevMsg":"uninitialized"}
{"type":"log","@timestamp":"2018-04-16T21:39:55Z","tags":["status","plugin:xpack_main@6.0.0","info"],"pid":20928,"state":"yellow","message":"Status changed from uninitialized to yellow - Waiting for Elasticsearch","prevState":"uninitialized","prevMsg":"uninitialized"}
{"type":"log","@timestamp":"2018-04-16T21:39:55Z","tags":["status","plugin:xpack_main@6.0.0","error"],"pid":20928,"state":"red","message":"Status changed from yellow to red - Authentication Exception","prevState":"yellow","prevMsg":"Waiting for Elasticsearch"}
{"type":"log","@timestamp":"2018-04-16T21:39:55Z","tags":["status","plugin:elasticsearch@6.0.0","error"],"pid":20928,"state":"red","message":"Status changed from yellow to red - Authentication Exception","prevState":"yellow","prevMsg":"Waiting for Elasticsearch"}
{"type":"log","@timestamp":"2018-04-16T21:39:55Z","tags":["status","plugin:graph@6.0.0","error"],"pid":20928,"state":"red","message":"Status changed from uninitialized to red - Authentication Exception","prevState":"uninitialized","prevMsg":"uninitialized"}
{"type":"log","@timestamp":"2018-04-16T21:39:55Z","tags":["status","plugin:monitoring@6.0.0","info"],"pid":20928,"state":"green","message":"Status changed from uninitialized to green - Ready","prevState":"uninitialized","prevMsg":"uninitialized"}
{"type":"log","@timestamp":"2018-04-16T21:39:56Z","tags":["reporting","warning"],"pid":20928,"message":"Generating a random key for xpack.reporting.encryptionKey. To prevent pending reports from failing on restart, please set xpack.reporting.encryptionKey in kibana.yml"}
{"type":"log","@timestamp":"2018-04-16T21:39:56Z","tags":["status","plugin:reporting@6.0.0","error"],"pid":20928,"state":"red","message":"Status changed from uninitialized to red - Authentication Exception","prevState":"uninitialized","prevMsg":"uninitialized"}
{"type":"log","@timestamp":"2018-04-16T21:39:56Z","tags":["status","plugin:security@6.0.0","error"],"pid":20928,"state":"red","message":"Status changed from uninitialized to red - Authentication Exception","prevState":"uninitialized","prevMsg":"uninitialized"}
{"type":"log","@timestamp":"2018-04-16T21:39:56Z","tags":["security","warning"],"pid":20928,"message":"Generating a random key for xpack.security.encryptionKey. To prevent sessions from being invalidated on restart, please set xpack.security.encryptionKey in kibana.yml"}
{"type":"log","@timestamp":"2018-04-16T21:39:56Z","tags":["security","warning"],"pid":20928,"message":"Session cookies will be transmitted over insecure connections. This is not recommended."}
{"type":"log","@timestamp":"2018-04-16T21:39:56Z","tags":["status","plugin:searchprofiler@6.0.0","error"],"pid":20928,"state":"red","message":"Status changed from uninitialized to red - Authentication Exception","prevState":"uninitialized","prevMsg":"uninitialized"}
{"type":"log","@timestamp":"2018-04-16T21:39:56Z","tags":["status","plugin:ml@6.0.0","error"],"pid":20928,"state":"red","message":"Status changed from uninitialized to red - Authentication Exception","prevState":"uninitialized","prevMsg":"uninitialized"}
{"type":"log","@timestamp":"2018-04-16T21:39:56Z","tags":["status","plugin:ml@6.0.0","info"],"pid":20928,"state":"yellow","message":"Status changed from red to yellow - Waiting for Elasticsearch","prevState":"red","prevMsg":"Authentication Exception"}
{"type":"log","@timestamp":"2018-04-16T21:39:56Z","tags":["status","plugin:tilemap@6.0.0","error"],"pid":20928,"state":"red","message":"Status changed from uninitialized to red - Authentication Exception","prevState":"uninitialized","prevMsg":"uninitialized"}
{"type":"log","@timestamp":"2018-04-16T21:39:56Z","tags":["status","plugin:ml@6.0.0","error"],"pid":20928,"state":"red","message":"Status changed from yellow to red - Authentication Exception","prevState":"yellow","prevMsg":"Waiting for Elasticsearch"}
{"type":"log","@timestamp":"2018-04-16T21:39:56Z","tags":["status","plugin:watcher@6.0.0","error"],"pid":20928,"state":"red","message":"Status changed from uninitialized to red - Authentication Exception","prevState":"uninitialized","prevMsg":"uninitialized"}
{"type":"log","@timestamp":"2018-04-16T21:39:56Z","tags":["status","plugin:grokdebugger@6.0.0","info"],"pid":20928,"state":"green","message":"Status changed from uninitialized to green - Ready","prevState":"uninitialized","prevMsg":"uninitialized"}
{"type":"log","@timestamp":"2018-04-16T21:39:56Z","tags":["status","plugin:dashboard_mode@6.0.0","info"],"pid":20928,"state":"green","message":"Status changed from uninitialized to green - Ready","prevState":"uninitialized","prevMsg":"uninitialized"}
{"type":"log","@timestamp":"2018-04-16T21:39:56Z","tags":["status","plugin:logstash@6.0.0","error"],"pid":20928,"state":"red","message":"Status changed from uninitialized to red - Authentication Exception","prevState":"uninitialized","prevMsg":"uninitialized"}
{"type":"log","@timestamp":"2018-04-16T21:39:56Z","tags":["status","plugin:console@6.0.0","info"],"pid":20928,"state":"green","message":"Status changed from uninitialized to green - Ready","prevState":"uninitialized","prevMsg":"uninitialized"}
{"type":"log","@timestamp":"2018-04-16T21:39:56Z","tags":["status","plugin:metrics@6.0.0","info"],"pid":20928,"state":"green","message":"Status changed from uninitialized to green - Ready","prevState":"uninitialized","prevMsg":"uninitialized"}
{"type":"log","@timestamp":"2018-04-16T21:39:56Z","tags":["status","plugin:timelion@6.0.0","info"],"pid":20928,"state":"green","message":"Status changed from uninitialized to green - Ready","prevState":"uninitialized","prevMsg":"uninitialized"}
{"type":"log","@timestamp":"2018-04-16T21:39:56Z","tags":["listening","info"],"pid":20928,"message":"Server running at http://localhost:5601"}
{"type":"log","@timestamp":"2018-04-16T21:39:56Z","tags":["status","ui settings","error"],"pid":20928,"state":"red","message":"Status changed from uninitialized to red - Elasticsearch plugin is red","prevState":"uninitialized","prevMsg":"uninitialized"}