Sending an ACME HTTP validation request to jenkins-x86-64.powerbang.ovh results in unexpected HTTP response 503 Service Unavailable. This indicates that the webserver is misconfigured or misbehaving.
503 Service Unavailable
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>503 Service Unavailable</title>
</head><body>
<h1>Service Unavailable</h1>
<p>The server is temporarily unable to service your
request due to maintenance downtime or capacity
problems. Please try again later.</p>
<p>Additionally, a 503 Service Unavailable
error was encountered while trying to use an ErrorDocument to handle the request.</p>
</body></html>
Trace:
@0ms: Making a request to http://jenkins-x86-64.powerbang.ovh/.well-known/acme-challenge/letsdebug-test (using initial IP 91.86.133.221)
@0ms: Dialing 91.86.133.221
@104ms: Server response: HTTP 301 Moved Permanently
@104ms: Received redirect to https://jenkins-x86-64.powerbang.ovh/.well-known/acme-challenge/letsdebug-test
@104ms: Dialing 91.86.133.221
@6416ms: Server response: HTTP 503 Service Unavailable