Installing X-Pack 

As X-Pack is an extension of Elastic Stack, prior to installing X-Pack, you need to have both Elasticsearch and Kibana installed. You must run the version of X-Pack that matches the version of Elasticsearch and Kibana. 

Installing X-Pack on Elasticsearch

X-Pack is installed just like any plugin to extend Elasticsearch.

These are the steps to install X-Pack in Elasticsearch:

1. Navigate to the ES_HOME folder.
2. Install X-Pack using the following command:

$ ES_HOME> bin/elasticsearch-plugin install x-pack

During installation, it will ask you to grant extra permissions to X-Pack, which are required by Watcher to send email alerts and also to enable Elasticsearch to launch the machine learning analytical engine. Specify y to continue the installation or N to abort the installation.

You should get the following logs/prompts during installation:

-> Downloading x-pack from elastic
[=================================================] 100%  
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@...