how to monitor https web server with blackboxexporter

[Jerry Han]

I have working on monitor custom made https web server with blackbox exporter 

any example or solutions? 

every time I fail with probe_success 

below file is my blackbox and promehtues yaml file 

[Julius Volz]

Try going to your Blackbox exporter manually and probing your HTTPS server through it, but with "debug=true" appended to the probe request. That should show you where and why exactly your probe request is failing.

E.g.:

http://<blackbox-exporter-host>:9115/probe?target=<server-url>&module=http_2xx&debug=true

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Julius Volz

PromLabs - promlabs.com

[Jerry Han]

sorry for CC Julius
This is my debugging logs please help me...

2021년 3월 22일 월요일 오후 3시 19분 59초 UTC+9에 juliu...@promlabs.com님이 작성:

[Julius Volz]

So EOF ("end of file") in the context of a failed HTTP request probably means that the remote end closed the connection for some reason. This can also happen if the web server sends the response, but closes the connection before the client reads the response. I would check your custom web server code for that.

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[Marcelo Magallón]

I see there's an artifact in the logs when reporting the error, "Get " plus some non-ascii character.

Is the domain name for the target by any chance an international domain name (using characters outside the ascii range)?

There's an old open PR in blackbox_exporter related to that that I have been meaning to take a look at but I haven't gotten around to it yet.

Marcelo

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Marcelo Magallón

[Jerry Han]

to  Julius 

well in that case i made a custom metric in web server this could be a reason for failing the probe? 

2021년 3월 23일 화요일 오전 2시 7분 13초 UTC+9에 marcelo....@grafana.com님이 작성: