Centos 7 x64 Elastic Search 6.2

In my development environment I have been playing around with Elastic search and have to say it is pretty neat how you can centralize your windows logs and view them on Kibanna.

 

If you want to install here are the steps I took.

 

I installed Centos 7 x64 with the minimum installation

After install I installed the following tools

 

You will need wget and if you want tools like ifconfig and nano editor.


yum install nettools nano wget curl

We need Java 8 so using yum


yum install java-1.8.0-openjdk.x86_64

 

Now we need to download the public signing key from elastic


rpm --import https://artifacts.elastic.co/GPG-KEY-elasticsearch

Using your favorite Linux editor


nano -w /etc/yum.repos.d/elastic.repo

Now paste the following


[elasticsearch-6.x]
name=Elasticsearch repository for 6.x packages
baseurl=https://artifacts.elastic.co/packages/6.x/yum
gpgcheck=1
gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch
enabled=1
autorefresh=1
type=rpm-md

hit Ctrl X to save

 

Now lets install elasticsearch


yum install elasticsearch

Running elasticsearch with systemd


systemctl daemon-reload


systemctl enable elasticsearch.service

Before starting elasticsearch lets edit the configuration file

 


nano -w  /etc/elasticsearch/elasticsearch.yml

 

Find Line network.host and change it so the # in front is deleted and looks like this


network.host: 0.0.0.0

Hit Ctrl X to save

This would make elasticsearch listen on any IP address the server is running. In production you can use x-pack to secure the server so only hosts with the username and password can access the elasticsearch

 

Now Lets start

elasticsearch


systemctl start elasticsearch.service

Now to verify the service is running you can query with curl


curl http://127.0.0.1:9200

You should get a similar output


{
"name" : "esnode-1",
"version" : {
"number" : "6.2.1",
"build_hash" : "7299dc3",
"build_date" : "2018-02-07T19:34:26.990113Z",
"build_snapshot" : false,
"lucene_version" : "7.2.1",
"minimum_wire_compatibility_version" : "5.6.0",
"minimum_index_compatibility_version" : "5.0.0"
},
"tagline" : "You Know, for Search"
}

 

Now your complete

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