# More information about parsers

**URL:** <https://discourse.crowdsec.net/t/more-information-about-parsers/679>\
**Category:** crowdsec\
**Created:** [March 11, 2022, 1:56pm UTC](https://discourse.crowdsec.net/t/more-information-about-parsers/679 "2022-03-11T13:56:27Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Fox](https://dub1.discourse-cdn.com/flex013/user_avatar/discourse.crowdsec.net/fox/32/594_2.png) [@Fox](https://discourse.crowdsec.net/u/Fox)\
**Post date:** [March 11, 2022, 1:56pm UTC](https://discourse.crowdsec.net/t/more-information-about-parsers/679/1 "2022-03-11T13:56:27Z")

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Hi,  
I installed Crowdsec on a reverse proxy, and I had requests that were detected and generated alerts that shouldn’t be.  
Is it possible to know what happens between each parsers to know if these detection are justified or not.  
Best regards.

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**Author:** ![alteredCoder](https://dub1.discourse-cdn.com/flex013/user_avatar/discourse.crowdsec.net/alteredcoder/32/44_2.png) [@alteredCoder](https://discourse.crowdsec.net/u/alteredCoder)\
**Post date:** [March 11, 2022, 2:30pm UTC](https://discourse.crowdsec.net/t/more-information-about-parsers/679/2 "2022-03-11T14:30:43Z")

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Hello,

You can run `cscli explain -v --file '<path_to_logfile>' --type '<log_type>'` or `cscli explain -v --log '<log_line>' --type '<log_type'>` to see what happen during the parsing.

Here is the link to the documentation: [cscli explain | CrowdSec](https://docs.crowdsec.net/docs/next/cscli/cscli_explain/)

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**Author:** ![klausagnoletti](https://dub1.discourse-cdn.com/flex013/user_avatar/discourse.crowdsec.net/klausagnoletti/32/201_2.png) [@klausagnoletti](https://discourse.crowdsec.net/u/klausagnoletti)\
**Post date:** [March 14, 2022, 11:05am UTC](https://discourse.crowdsec.net/t/more-information-about-parsers/679/3 "2022-03-14T11:05:28Z")

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Hi @Fox can you confirm that the proposed solution works?

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**Author:** ![Fox](https://dub1.discourse-cdn.com/flex013/user_avatar/discourse.crowdsec.net/fox/32/594_2.png) [@Fox](https://discourse.crowdsec.net/u/Fox)\
**Post date:** [March 21, 2022, 1:21pm UTC](https://discourse.crowdsec.net/t/more-information-about-parsers/679/4 "2022-03-21T13:21:32Z")

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Hi @klausagnoletti,  
Yes, thank you for this solution @alteredCoder.  
I apologize for the delay.