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Installing Elasticsearch

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Installing Elasticsearch

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Elasticsearch is a real-time, distributed storage, search, and analytics engine. It can be used for many purposes, but one context where it excels is indexing streams of semi-structured data, such as logs or decoded network packets.

The binary packages of Elasticsearch have only one dependency: Java. The minimum supported version is Java 8. To download and install Elasticsearch, use the commands that work with your system (deb for Debian/Ubuntu, rpm for Redhat/Centos/Fedora, mac for OS X, and win for Windows):

deb:

sudo apt-get install openjdk-8-jre
curl -L -O https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-5.6.16.deb
sudo dpkg -i elasticsearch-5.6.16.deb
sudo /etc/init.d/elasticsearch start

rpm:

sudo yum install java-1.8.0-openjdk
curl -L -O https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-5.6.16.rpm
sudo rpm -i elasticsearch-5.6.16.rpm
sudo service elasticsearch start

mac:

# install Java, e.g. from: https://www.java.com/en/download/manual.jsp
curl -L -O https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-5.6.16.zip
unzip elasticsearch-5.6.16.zip
cd elasticsearch-5.6.16
./bin/elasticsearch

win:

If necessary, download and install the latest version of the Java from www.java.com.
Download the Elasticsearch 5.6.16 Windows zip file from the downloads page.
Extract the contents of the zip file to a directory on your computer, for example, C:\Program Files.
Open a command prompt as an Administrator and navigate to the directory that contains the extracted files, for example:
```
cd C:\Program Files\elasticsearch-5.6.16
```
Run the following command to start Elasticsearch:
```
bin\elasticsearch.bat
```

You can learn more about installing, configuring, and running Elasticsearch in the Elasticsearch Reference.

Making Sure Elasticsearch is Up and Running

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To test that the Elasticsearch daemon is up and running, try sending an HTTP GET request on port 9200.

curl http://127.0.0.1:9200

On Windows, if you don’t have cURL installed, simply point your browser to the URL.

You should see a response similar to this:

{
  "name" : "ofgAtrJ",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "3h9xSrVlRJmDHgQ8FLnByA",
  "version" : {
    "number" : "5.6.16",
    "build_hash" : "db0d481",
    "build_date" : "2017-02-09T22:05:32.386Z",
    "build_snapshot" : false,
    "lucene_version" : "6.4.1"
  },
  "tagline" : "You Know, for Search"
}

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