# Filter some personalId from accesslogs

**URL:** <https://discuss.elastic.co/t/filter-some-personalid-from-accesslogs/58333>\
**Category:** Logstash\
**Created:** [August 18, 2016, 9:29am UTC](https://discuss.elastic.co/t/filter-some-personalid-from-accesslogs/58333 "2016-08-18T09:29:35Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![sunilmchaudhari](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/sunilmchaudhari/32/9475_2.png) [@sunilmchaudhari](https://discuss.elastic.co/u/sunilmchaudhari)\
**Post date:** [August 18, 2016, 9:29am UTC](https://discuss.elastic.co/t/filter-some-personalid-from-accesslogs/58333/1 "2016-08-18T09:29:36Z")

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Hello,  
I have some personalIDs in accesslogs that I want to encrypt or mutate in logstash filter.  
127.0.0.1 - - [12/Aug/2016:17:05:07 +0530] "GET /myService/v2.0/person/ **00123456** /  
in above logs, I want to check if some pesronalID pattern is there in the event. if YES, then I want to encrypt last 4-5 digits to \* star or # hash.  
\*\*/  
How can I do that?

br,  
Sunil

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**Author:** ![magnusbaeck](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/magnusbaeck/32/44943_2.png) [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)\
**Post date:** [August 18, 2016, 5:26pm UTC](https://discuss.elastic.co/t/filter-some-personalid-from-accesslogs/58333/2 "2016-08-18T17:26:15Z")

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Use the mutate filter's gsub option.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 6, 2017, 4:42am UTC](https://discuss.elastic.co/t/filter-some-personalid-from-accesslogs/58333/3 "2017-07-06T04:42:44Z")

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Closed on July 6, 2017, 4:42am UTC