# Custom regexes.yml

**URL:** <https://discuss.elastic.co/t/custom-regexes-yml/278921>\
**Category:** Elasticsearch\
**Created:** [July 16, 2021, 3:08pm UTC](https://discuss.elastic.co/t/custom-regexes-yml/278921 "2021-07-16T15:08:52Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![gentle\_ghost](https://avatars.discourse-cdn.com/v4/letter/g/ea5d25/32.png) [@gentle\_ghost](https://discuss.elastic.co/u/gentle_ghost)\
**Post date:** [July 16, 2021, 3:08pm UTC](https://discuss.elastic.co/t/custom-regexes-yml/278921/1 "2021-07-16T15:08:52Z")

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Hello,

Has anyone had any success/experience replacing the user agent plugin regexes.yml file with an entirely different/custom regexes.yml file?

I'm curious if anyone has successfully done it and were you required to use the same key/pairs in the uap-core parser or were you able to use your own keys?

Thanks

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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:** [August 13, 2021, 3:09pm UTC](https://discuss.elastic.co/t/custom-regexes-yml/278921/2 "2021-08-13T15:09:13Z")

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