Is it possible to limit the size of the cs_cookie value in IIS logs?

Question

Is it possible to limit the size of the cs_cookie value in IIS logs?

David Vargas 0

Is it possible to limit the size of the cs_cookie or any other OOB field in IIS logs? I noticed you can set the field size when you define a custom one but haven't found a way of doing it for one of the default fields

Viorel 122.6K Reputation points

2024-10-02T16:46:29.69+00:00

(Removed).
Lex Li 6,037 Reputation points

2024-10-03T08:15:22.3333333+00:00

You have little control over the logged data. The restriction of 65536 bytes, as mentioned in the article you found, only pertains to custom fields. Thus, I'm curious as to why you're asking this question. Are you intending to retain the cs_cookie in the log files? This might prove to be a risky decision, especially considering the typically large size of its values.

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Viorel 122.6K Reputation points

2024-10-02T16:46:29.69+00:00

(Removed).
Lex Li 6,037 Reputation points

2024-10-03T08:15:22.3333333+00:00

You have little control over the logged data. The restriction of 65536 bytes, as mentioned in the article you found, only pertains to custom fields. Thus, I'm curious as to why you're asking this question. Are you intending to retain the cs_cookie in the log files? This might prove to be a risky decision, especially considering the typically large size of its values.

Answer 1

Hi @David Vargas,

Is it possible to limit the size of the cs_cookie or any other OOB field in IIS logs?

As far as I know, the default field record in the log cannot be configured to limit its size, and the cookie size is 4096 bytes.

I'm not sure why you would need to limit its length, but if you need it to record more cookie data, you can try using a custom field to record it. But it also has a length limit of 65536 bytes. Just refer to this doc for more details: Custom Fields in a Log File for a Site <customFields> - Attributes.

Best regards,

Xudong Peng

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Anonymous

2024-10-11T03:05:25.7533333+00:00

Hi @David Vargas,

I have not heard from you for a couple of days. Please let me know if there is anything that I can help here.

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Is it possible to limit the size of the cs_cookie value in IIS logs?

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