# Filter Grok

**URL:** <https://discuss.elastic.co/t/filter-grok/130788>\
**Category:** Logstash\
**Created:** [May 7, 2018, 7:12am UTC](https://discuss.elastic.co/t/filter-grok/130788 "2018-05-07T07:12:50Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\
**Post date:** [May 7, 2018, 8:18am UTC](https://discuss.elastic.co/t/filter-grok/130788/6 "2018-05-07T08:18:42Z")

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Syslog can contain a lot of different formats, so you will need to be more specific and show examples. See [this post](https://discuss.elastic.co/t/syslog-with-millisecond-pattern-not-matching/130678/14?u=christian_dahlqvist) for some additional details.

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