# Extracting IP address pattern from string

**URL:** <https://discuss.elastic.co/t/extracting-ip-address-pattern-from-string/104409>\
**Category:** Kibana\
**Created:** [October 18, 2017, 2:13pm UTC](https://discuss.elastic.co/t/extracting-ip-address-pattern-from-string/104409 "2017-10-18T14:13:15Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![simbarashe\_Barry\_Mak](https://avatars.discourse-cdn.com/v4/letter/s/c5a1d2/32.png) [@simbarashe\_Barry\_Mak](https://discuss.elastic.co/u/simbarashe_Barry_Mak)\
**Post date:** [October 18, 2017, 2:13pm UTC](https://discuss.elastic.co/t/extracting-ip-address-pattern-from-string/104409/1 "2017-10-18T14:13:15Z")

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How can I extract an IP address pattern from a long string like this using regular expressions ?

Oct 18 16:01:56 Server1 Sshd[207769]: Failed Password For Invalid User Music From 107.150.42.106 Port 63668 Ssh2

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**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [October 18, 2017, 2:24pm UTC](https://discuss.elastic.co/t/extracting-ip-address-pattern-from-string/104409/2 "2017-10-18T14:24:24Z")

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You should really do that at ingest time, doing it afterwards is really difficult.

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<div class="post-metadata">

**Author:** ![simbarashe\_Barry\_Mak](https://avatars.discourse-cdn.com/v4/letter/s/c5a1d2/32.png) [@simbarashe\_Barry\_Mak](https://discuss.elastic.co/u/simbarashe_Barry_Mak)\
**Post date:** [October 18, 2017, 2:29pm UTC](https://discuss.elastic.co/t/extracting-ip-address-pattern-from-string/104409/3 "2017-10-18T14:29:23Z")

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Thanks Can I not use a regular expression for this

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<div class="post-metadata">

**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [October 18, 2017, 2:44pm UTC](https://discuss.elastic.co/t/extracting-ip-address-pattern-from-string/104409/4 "2017-10-18T14:44:17Z")

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Maybe, but it'd be difficult and expensive.

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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:** [November 15, 2017, 2:44pm UTC](https://discuss.elastic.co/t/extracting-ip-address-pattern-from-string/104409/5 "2017-11-15T14:44:19Z")

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Closed on November 15, 2017, 2:44pm UTC

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