My Domain's Certificate Expired; How can I renew it?

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1

Hi there!

I know this must be the most commonly asked question, but I know very little about the way the web works and less about certificates, so I apologize in advance. This is my first post on this forum.

I self-host a ghost blog on a Linode server, whose domain is mnchrm.co. I had gotten an email about my certificate expiring, but didn’t follow up in time. Now, the site cannot be connected to because of the expired cert. I have root server access of course, but I’m not sure what I need to do to get things back online and prevent this issue in the future.

My linode server is running Ubuntu 18.04 LTS.

Thanks in advance, everyone.

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First we need to identify how you configured nginx with an SSL certificate to begin with.

grep -Ri ssl_certificate /etc/nginx

That will give us an idea on what the best way is to renew your certificate.

3

What did you do recently?
[now the site is serving unencrypted/HTTP content via port 443]

curl -Iki https://mnchrm.co/
curl: (35) OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to mnchrm.co:443

curl -Iki http://mnchrm.co:443/
HTTP/1.1 400 Bad Request
Server: nginx/1.14.0 (Ubuntu)
Date: Thu, 05 Dec 2019 04:53:00 GMT
Content-Type: text/html
Content-Length: 280
Connection: close

You also have IPv4 and IPv6 addresses [which don't respond equally]:
Name: mnchrm.co
Addresses: 2400:8902::f03c:91ff:fef0:19aa
139.162.102.225

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