SSL certificate

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1

Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. https://crt.sh/?q=example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.

My domain is:sierratec.com

I ran this command:when I run certbot --nginx -d sierratec.com -d www.sierratec.com

It produced this output: I get error that error while running
nginx -c /etc/nginx/nginx.conf -t
Cannot load certificate

My web server is (include version):nginx

The operating system my web server runs on is ubuntu 22.04

2

Check which certificate files your ngxinx config points to, ensure they are the latest files renewed by certbot. Configuring HTTPS servers

You generally want the ssl_certificate pointing to the fullchain.pem and ssl_certificate_key pointing to the privkey

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3

Hi @Reuban,

Please show the output of each of the following commands

  • sudo certbot --version
  • sudo certbot certificates
  • sudo nginx -T that is a capital T
4

Also here https://decoder.link/sslchecker/sierratec.com/443 shows
the presently being served certificate

Certificate # 1 - Common Name: sierratec.com
Decode this certificate for verbose information →
Subject Common Name	sierratec.com
Issuer Common Name	R13
Issuer Organization	Let's Encrypt
Not Before:	Feb 20, 2026 11:05:31 GMT
Not After:	May 21, 2026 11:05:30 GMT
Signature Algorithm:	sha256WithRSAEncryption
Serial Number:	5c935b1569dfeecbfc9bd8247618049394f
SHA1 Fingerprint:	AC:48:04:6D:4B:14:C5:79:0F:23:73:ED:B2:B3:D7:91:B3:CF:58:A3
MD5 Fingerprint:	33:68:E6:7C:32:D2:FA:FF:D1:99:86:73:C8:42:66:08

So I am guessing that you have resolved the issue.

Side note: Port 80 is not accessible see Permanent link to this check report
and Hardenize Report: sierratec.com

3 Likes