topic Re: Dashboard query in Dashboards & Visualizations

Dashboard query

Manila_Mishra — Sat, 17 Apr 2021 00:12:08 GMT

I am a beginner at Splunk and I am stuck in a case. How can I get the User-agent from the Request Heder field in Splunk? I mean to ask what query should I write for this??

Re: Dashboard query

richgalloway — Sat, 17 Apr 2021 21:00:51 GMT

More details, please. What problem are you trying to solve? What queries have you tried so far? Are you looking for the user-agent string from one of your Splunk indexes or from a Splunk user. If the latter, then there is no query for it.

Is your web server sending user-agent strings to Splunk for indexing? If not then no query will find them and you should work on getting that data indexed. If it is indexed then you should be able to search for it, assuming your role has access to the proper index. Again, we'll need more information to be more helpful.

Re: Dashboard query

Manila_Mishra — Mon, 19 Apr 2021 18:45:36 GMT

Hi @richgalloway ,

Thanks for the reply, I want to understand what Splunk query should I write to extract UserAgent information from the Request Headers.

I have attached an ss below and want to get the highlighted values.

Please let me know if any other way I should ask my question. 🙂

Re: Dashboard query

richgalloway — Tue, 20 Apr 2021 00:26:52 GMT

Given those examples, the rex command can do the job.

... | rex field=httpMessage.requestHeaders "User-Agent:\s(?<user_agent>\S+)" ...

Re: Dashboard query

Manila_Mishra — Tue, 20 Apr 2021 19:29:10 GMT

Thanks 😊