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I'm trying to install LetsEncrypt for my domains on my Ubuntu server, I've done these before.. Now I'm on another server, and when I try to run ./letsencrypt-auto --apache -d example.com -d www.example.com, I receive this error:

Failed authorization procedure. www.domain.nl (tls-sni-01): urn:acme:error:unauthorized :: The client lacks sufficient authorization :: Incorrect validation certificate for TLS-SNI-01 challenge. Requested 24b12211dde2917738675c9e33fd8883.f67ae135c7fed3148764ebe4e009e44e.acme.invalid from 0.0.0.0:443. Received certificate containing '', leeshetetiket.nl (tls-sni-01): urn:acme:error:unauthorized :: The client lacks sufficient authorization :: Incorrect validation certificate for TLS-SNI-01 challenge. Requested b7f2fd7903dd65daf58239f7c00abf27.7995b788de04bee09ec907cbc36ff986.acme.invalid from 0.0.0.0:443. Received certificate containing ''

IMPORTANT NOTES: - The following errors were reported by the server:

Domain: www.domain.nl Type: unauthorized Detail: Incorrect validation certificate for TLS-SNI-01 challenge.
Requested
24b12211dde2917738675c9e33fd8883.f67ae135c7fed3148764ebe4e009e44e.acme.invalid from 0.0.0.0:443. Received certificate containing ''

Domain: domain.nl Type: unauthorized Detail: Incorrect validation certificate for TLS-SNI-01 challenge.
Requested
b7f2fd7903dd65daf58239f7c00abf27.7995b788de04bee09ec907cbc36ff986.acme.invalid from 0.0.0.0:443. Received certificate containing ''

To fix these errors, please make sure that your domain name was
entered correctly and the DNS A record(s) for that domain
contain(s) the right IP address.

My domain contains the A record(s) pointing to the server, since I'm already managing the domain on the server.

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2 Answers 2

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Did you just set up nameservers/added A records? I know I had the exact same problem and I just had to wait for the DNS to propagate.

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  • I see, well I've did it like 12 hours ago.. thought it'd work by now.
    – peer
    Commented Jun 23, 2016 at 8:58
  • If you have more than 1 SSL on that server, I think you need to specify the webroot parameter and agree to the TOS, --agree-tos -a webroot --webroot-path=/home/user/public_html.
    – Mugurel
    Commented Jun 23, 2016 at 9:01
  • Hmm, I do not have more than 1 SSL on the server atm.. But I'll try that
    – peer
    Commented Jun 23, 2016 at 9:10
  • I've got it working now.. well atleast I've installed the certificate.. But now Chrome is telling me "connection is not secure".
    – peer
    Commented Jun 23, 2016 at 9:19
  • Can you please attach a screenshot?
    – Mugurel
    Commented Jun 23, 2016 at 9:44
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I found the Let's Encrypt client unreliable, I used ACME. I have a [tutorial available here] for Amazon Linux, but Ubuntu should be much the same2.

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