# Auth.log grok parsing errors

**URL:** <https://discuss.elastic.co/t/auth-log-grok-parsing-errors/316547>\
**Category:** Beats\
**Tags:** filebeat\
**Created:** [October 13, 2022, 2:44pm UTC](https://discuss.elastic.co/t/auth-log-grok-parsing-errors/316547 "2022-10-13T14:44:55Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![P-T-I](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/p-t-i/32/110884_2.png) [@P-T-I](https://discuss.elastic.co/u/P-T-I)\
**Post date:** [October 13, 2022, 2:44pm UTC](https://discuss.elastic.co/t/auth-log-grok-parsing-errors/316547/1 "2022-10-13T14:44:55Z")

</div>

All my auth.log entries show up as grok errors:

```auto
Provided Grok expressions do not match field value: [{"@timestamp":"2022-10-13T13:59:21.176Z","@metadata":{"beat":"filebeat","type":"_doc","version":"8.4.3","pipeline":"filebeat-8.4.3-system-auth-pipeline"},"message":"Oct 13 13:59:16 kafka su: pam_unix(su:session): session closed for user docker_user","event":{"dataset":"system.auth","module":"system","timezone":"+00:00"},"service":{"type":"system"},"host":{"name":"kafka"},"agent":{"name":"kafka","type":"filebeat","version":"8.4.3","ephemeral_id":"60260a29-b38d-4247-962d-a1c77c064562","id":"73d67524-1926-46db-9a52-055a4818ad4f"},"log":{"offset":47170,"file":{"path":"/var/log/auth.log"}},"input":{"type":"log"},"fileset":{"name":"auth"},"ecs":{"version":"8.0.0"}}]

```

The complete stack is 8.4.3; how could I best troubleshoot this issue?

---

<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:** [November 10, 2022, 4:45pm UTC](https://discuss.elastic.co/t/auth-log-grok-parsing-errors/316547/2 "2022-11-10T16:45:49Z")

</div>

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