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I have probably set wrong FQDN while creating ssl certificate.

Now, certificate is installed and site display a 'Warning: Potential Security Risk Ahead'

I am quite sure it is FQDN as certificate was bought from a company where i have installed ssl successfully in the past.

I get this detail on the site:

-when visiting https: www.mydomain.com: Web sites prove their identity via certificates. Firefox does not trust this site because it uses a certificate that is not valid for www.mydomain.com. The certificate is only valid for mydomain.com.

-when visiting https mydomain.com:

mydomain.com uses an invalid security certificate. The certificate is not trusted because it is self-signed.

How can I view ssl FQDN and how to fix the issue.

eagerpupil
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  • You have most likely a different certificate installed for your main domain and subdomain. – Tero Kilkanen Jun 09 '19 at 11:02
  • It seems pretty clear what the problem is. `1.` The certificate is only valid for mydomain.com. `2.` The certificate is self-signed. – joeqwerty Jun 09 '19 at 22:13
  • There was something wrong with the server configuration. I played with the server configuration file and it fixed it. Not sure if that is correct but when I had three files in apaches ssl configuration: crt, bundle and key it was fine. When I used key and chain(crt and bundle joined into one file) it brought the problems. As I said it might be different cause. Oh...and it does work on both www. and nothing. It was not self signed. :) – eagerpupil Jun 09 '19 at 22:54

1 Answers1

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You can use the openssl command to decode and print certificate contents

openssl x509 -noout -text -in example.com.pem

You should be able to find the DNS names listed on the cert in the Subject Alternative Name: sectilon.

user9517
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