# Logstash getting wrong hostname?

**URL:** <https://discuss.elastic.co/t/logstash-getting-wrong-hostname/80161>\
**Category:** Logstash\
**Created:** [March 27, 2017, 3:40pm UTC](https://discuss.elastic.co/t/logstash-getting-wrong-hostname/80161 "2017-03-27T15:40:14Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![scutdk](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/scutdk/32/16503_2.png) [@scutdk](https://discuss.elastic.co/u/scutdk)\
**Post date:** [March 27, 2017, 3:40pm UTC](https://discuss.elastic.co/t/logstash-getting-wrong-hostname/80161/1 "2017-03-27T15:40:14Z")

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Hi, my current logstash setup always return localhost for host field.  
My system is CentOS 6.x.  
I' ve set hostname in /etc/sysconfig/network and also in hostname command.

from Google, it says logstash use gethostname function to get the value.  
How can I correctly set the value for hostname? Thanks.

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<div class="post-metadata">

**Author:** ![scutdk](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/scutdk/32/16503_2.png) [@scutdk](https://discuss.elastic.co/u/scutdk)\
**Post date:** [March 28, 2017, 2:29am UTC](https://discuss.elastic.co/t/logstash-getting-wrong-hostname/80161/2 "2017-03-28T02:29:08Z")

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Somehow I've figured it out.  
Logstash will get whatever the first hostname from /etc/hosts file for 127.0.0.1 record.  
It doesn't quite make sense and weird though... 😔

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [April 25, 2017, 2:29am UTC](https://discuss.elastic.co/t/logstash-getting-wrong-hostname/80161/3 "2017-04-25T02:29:08Z")

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