# Overload control mechanism is supported to reduce the impact of DoS attacks

**URL:** <https://discuss.elastic.co/t/overload-control-mechanism-is-supported-to-reduce-the-impact-of-dos-attacks/146170>\
**Category:** Elasticsearch\
**Created:** [August 27, 2018, 11:54am UTC](https://discuss.elastic.co/t/overload-control-mechanism-is-supported-to-reduce-the-impact-of-dos-attacks/146170 "2018-08-27T11:54:03Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![mrudrego](https://avatars.discourse-cdn.com/v4/letter/m/898d66/32.png) [@mrudrego](https://discuss.elastic.co/u/mrudrego)\
**Post date:** [August 27, 2018, 11:54am UTC](https://discuss.elastic.co/t/overload-control-mechanism-is-supported-to-reduce-the-impact-of-dos-attacks/146170/1 "2018-08-27T11:54:03Z")

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Hi,

We are using ELK 6.2.4 stack, is there a Overload control mechanism to reduce the impact of DoS attacks?  
If yes, can you please let us know what is the mechanism.

Thanks & Regards,  
Mahesh

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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:** [August 27, 2018, 9:07pm UTC](https://discuss.elastic.co/t/overload-control-mechanism-is-supported-to-reduce-the-impact-of-dos-attacks/146170/2 "2018-08-27T21:07:54Z")

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Is the implication here that you are exposing Elasticsearch to the internet, and you want to protect it from DoS attacks via the internet?

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**Author:** ![mrudrego](https://avatars.discourse-cdn.com/v4/letter/m/898d66/32.png) [@mrudrego](https://discuss.elastic.co/u/mrudrego)\
**Post date:** [August 29, 2018, 11:07am UTC](https://discuss.elastic.co/t/overload-control-mechanism-is-supported-to-reduce-the-impact-of-dos-attacks/146170/3 "2018-08-29T11:07:11Z")

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Hi,  
We are not directly exposing Elasticsearch and kibana to the internet. the ports are behind the firewall.

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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:** [August 29, 2018, 7:47pm UTC](https://discuss.elastic.co/t/overload-control-mechanism-is-supported-to-reduce-the-impact-of-dos-attacks/146170/4 "2018-08-29T19:47:36Z")

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Then isn't it the job of the firewall to protect against DoS?

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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:** [September 26, 2018, 7:47pm UTC](https://discuss.elastic.co/t/overload-control-mechanism-is-supported-to-reduce-the-impact-of-dos-attacks/146170/5 "2018-09-26T19:47:37Z")

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