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Frank Slicer

Alert Can't connect https, but can curl from collector

Question

Got an issue where getting a status "5", can't connect on https-443 to a web server on AWS EC2.  But can connect to https site from public browser and using curl from the collector, without issue.

Running diagnostics through LM shows a timeout. The "Poll Now" data looks fine except Normal Datapoints shows errors.  These errors cannot be confirmed.

 

 

image.png

Edited by Frank Slicer
added text for clarity

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It does look like it's not able to communicate with the web server. Status 5 is "Network error" and it isn't showing any content or headers. Have you tried using the debug console !http command to see what it shows? It supports using https as a url. Do you have a proxy? I don't think LM collector will look at the windows/IE proxy settings while other software might.

 

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I'm able to send !http curl https://<url> . and !http https://<url> from the debug..... from the later I get....

HTTP response received at at: 2018-09-26 15:17:38.362. Time elapsed: 40ms
HTTP/1.1 200 OK
x-powered-by: node.js/8.9.2
accept-ranges: bytes
content-type: text/html
server: turtle.io/7.6.1 (Linux)
allow: GET, HEAD, OPTIONS
cache-control: no cache, no-store, must-revalidate
pragma: no-cache
expires: 0
last-modified: Tue, 25 Sep 2018 12:51:43 GMT
etag: "3375771597"
transfer-encoding: chunked
x-response-time: 0.38 ms
date: Wed, 26 Sep 2018 15:17:38 GMT
connection: close

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title>EPayApp</title>
    <meta name="description" content="">
    <meta name="viewport" content="width=device-width, initial-scale=1">

followed by the contents of the home page........

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Very odd, was your "HTTPS-" DataSource modified? Perhaps worth checking the Repository if there is an updated version of or difference in that DataSource from core.

Otherwise I would dig thru the wrapper and other collector logs or reach out to LM support.

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I had the same issue and was able to resolve it with the following steps:

1. Open ServerManager in host
2. Add Roles and Features
3. Before You Begin...Next,
4. Install Type...Next,
5. Server Selection...Next,
6. Select Web Server (IIS) > Select Add Features...Next
7. Web Server Role (IIS)...Next
8. Roles Services...Next
9. Confirmation...Install

10. Select the new IIS option from Left Pane > Right click your server name > Internet Information Services Manager

11. Expand hostname > Right click Default Website > Edit Bindings > Add > type: Https > SSL Certificate: My ADFS Cert > close.

12. Right click Default Web Site > Manage Website > Start

13. Go to your LMportal > ADFS Host > HTTPS-443 > Raw Data > poll now.

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