# Packetbeat not running
**URL:** https://discuss.elastic.co/t/packetbeat-not-running/66953
**Category:** Beats
**Tags:** packetbeat
**Created:** [November 23, 2016, 8:25am UTC](https://discuss.elastic.co/t/packetbeat-not-running/66953 "2016-11-23T08:25:24Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@kumar21000](https://discuss.elastic.co/u/kumar21000)
#### Post date: [November 23, 2016, 8:25am UTC](https://discuss.elastic.co/t/packetbeat-not-running/66953/1 "2016-11-23T08:25:24Z")
I am trying to run packetbeat in centos 7, while running I am getting the below error
[root@packetbeat]# cat /var/log/packetbeat/packetbeat
2016-11-23T11:50:50+04:00 INFO Setup Beat: packetbeat; Version: 5.0.1
2016-11-23T11:50:50+04:00 INFO Loading template enabled. Reading template file: /etc/packetbeat/packetbeat.template.json
2016-11-23T11:50:50+04:00 INFO Loading template enabled for Elasticsearch 2.x. Reading template file: /etc/packetbeat/packetbeat.template-es2x.json
2016-11-23T11:50:50+04:00 ERR failed to initialize elasticsearch plugin as output: missing required field accessing 'output.elasticsearch.hosts'
2016-11-23T11:50:50+04:00 CRIT Exiting: error initializing publisher: missing required field accessing 'output.elasticsearch.hosts'
in my packetbeat.yml I have specified elasticsearch
output.elasticsearch:
# Array of hosts to connect to.
hosts: ["x.x.x.x:xxxx"]
I am not sure what I am missing, any idea?
---
### Author:  [@steffens](https://discuss.elastic.co/u/steffens)
#### Post date: [November 23, 2016, 10:01am UTC](https://discuss.elastic.co/t/packetbeat-not-running/66953/2 "2016-11-23T10:01:16Z")
the config file format (yaml) is sensitive to use of spaces and tabs. Looks like you did not indent `hosts` correctly.
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [December 21, 2016, 10:01am UTC](https://discuss.elastic.co/t/packetbeat-not-running/66953/3 "2016-12-21T10:01:27Z")
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