I got an old system in my new position 
It looks like a elasticsearch + logstash server.
When i tried to open the elasticseach link, it complains about the service.
"Error Could not contact Elasticseach at http://kibana.ec2.avery.com:9200. Please ensure that ElasticSearch is reachable from your system.
root@monitor:/usr/share$ cd elasticsearch
root@monitor:/usr/share/elasticsearch$ ./bin/elasticsearch
Failed to configure logging...
org.elasticsearch.ElasticsearchException: Failed to load logging configuration
at org.elasticsearch.common.logging.log4j.LogConfigurator.resolveConfig(LogConfigurator.java:135)
at org.elasticsearch.common.logging.log4j.LogConfigurator.configure(LogConfigurator.java:85)
at org.elasticsearch.bootstrap.Bootstrap.setupLogging(Bootstrap.java:94)
at org.elasticsearch.bootstrap.Bootstrap.main(Bootstrap.java:178)
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:32)
Caused by: java.nio.file.NoSuchFileException: /usr/share/elasticsearch/config
at sun.nio.fs.UnixException.translateToIOException(UnixException.java:86)
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102)
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107)
at sun.nio.fs.UnixFileAttributeViews$Basic.readAttributes(UnixFileAttributeViews.java:55)
at sun.nio.fs.UnixFileSystemProvider.readAttributes(UnixFileSystemProvider.java:144)
at sun.nio.fs.LinuxFileSystemProvider.readAttributes(LinuxFileSystemProvider.java:97)
at java.nio.file.Files.readAttributes(Files.java:1686)
at java.nio.file.FileTreeWalker.walk(FileTreeWalker.java:109)
at java.nio.file.FileTreeWalker.walk(FileTreeWalker.java:69)
at java.nio.file.Files.walkFileTree(Files.java:2602)
at org.elasticsearch.common.logging.log4j.LogConfigurator.resolveConfig(LogConfigurator.java:119)
... 4 more
log4j:WARN No appenders could be found for logger (node).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
^Croot@monitor:/usr/share/elasticsearch$ pwd
/usr/share/elasticsearch
root@monitor:/usr/share/elasticsearch$