==== Running Elasticsearch with `systemd`

To configure Elasticsearch to start automatically when the system boots up,
run the following commands:

[source,sh]
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sudo /bin/systemctl daemon-reload
sudo /bin/systemctl enable elasticsearch.service
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Elasticsearch can be started and stopped as follows:

[source,sh]
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sudo systemctl start elasticsearch.service
sudo systemctl stop elasticsearch.service
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These commands provide no feedback as to whether Elasticsearch was started
successfully or not.  Instead, this information will be written to the
`systemd` journal, which can be tailed as follows:

[source,sh]
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sudo journalctl -f
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Log files can be found in `/var/log/elasticsearch/`.