# EQL query to alert 1 alert per each user

**URL:** https://discuss.elastic.co/t/eql-query-to-alert-1-alert-per-each-user/339539
**Category:** SIEM
**Created:** [July 28, 2023, 11:30am UTC](https://discuss.elastic.co/t/eql-query-to-alert-1-alert-per-each-user/339539 "2023-07-28T11:30:09Z")
**Posts on this page:** 4
**Page:** 1

<div class="post-metadata">

### Author: ![yzaritskyi](https://avatars.discourse-cdn.com/v4/letter/y/a6a055/32.png) [@yzaritskyi](https://discuss.elastic.co/u/yzaritskyi)
#### Post date: [July 28, 2023, 11:30am UTC](https://discuss.elastic.co/t/eql-query-to-alert-1-alert-per-each-user/339539/1 "2023-07-28T11:30:09Z")

</div>

Hello all!

I'd like to create a Rule based on the EQL query that will trigger an alert only once per user.

For example:  
The input list of logs is  
_user1 ip1_  
_user1 ip1_  
_user2 ip2_  
_user5 ip5_  
_user4 ip4_  
_user4 ip4_  
_user20 ip20_  
_user1 ip1_  
_user20 ip20_

And I want to create alerts based on that logs to see results like this:  
_alert1: user1 ip1_  
_alert2: user2 ip2_  
_alert3: user4 ip4_  
_alert4: user5 ip5_  
_alert5: user20 ip20_

I try to detect the user's connection to some websites through DNS logs. This Rule runs every 24 hours, but a user can connect to the service I'm interested in more than 1 time, so I usually get more than 1 alert for the same user.

I tried to implement it using **sequence by** , but it doesn't work:

```auto
sequence by user.name, ?process.name
  [network where network.protocol == "dns" and dns.question.name : (" ***", "***")]
  [network where true]

```

I would be really glad to hear any suggestions or the entire resolution. Thank you!

---

<div class="post-metadata">

### Author: ![spong](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/spong/32/54343_2.png) [@spong](https://discuss.elastic.co/u/spong)
#### Post date: [August 1, 2023, 10:11pm UTC](https://discuss.elastic.co/t/eql-query-to-alert-1-alert-per-each-user/339539/2 "2023-08-01T22:11:21Z")

</div>

Hey there @yzaritskyi ! 👋

So if you only want one per grouping of `user.name` / `process.name`, you might want to try using a `Threshold Rule` ala:

 ![image](https://us1.discourse-cdn.com/elastic/original/3X/8/2/82642e4880ff8b3a5bada5350b58914dfcd67b07.png)

You may want to include the dns name in the `Group by` depending on how you want your alerts broken apart.

Let me know if that works for you!

Cheers!  
Garrett

---

<div class="post-metadata">

### Author: ![yzaritskyi](https://avatars.discourse-cdn.com/v4/letter/y/a6a055/32.png) [@yzaritskyi](https://discuss.elastic.co/u/yzaritskyi)
#### Post date: [August 8, 2023, 1:15pm UTC](https://discuss.elastic.co/t/eql-query-to-alert-1-alert-per-each-user/339539/3 "2023-08-08T13:15:08Z")

</div>

Thank you! You helped me a lot! It works exactly how I wanted.

---

<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: [September 5, 2023, 1:15pm UTC](https://discuss.elastic.co/t/eql-query-to-alert-1-alert-per-each-user/339539/4 "2023-09-05T13:15:23Z")

</div>

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.