Difference between Valid and Invalid Certificates.

Vaibhav Singh

Hi Guys,

I have been asked once the difference between Valid and Invalid Certificate and also How a user can generate a valid certificate,

Please let me know your suggestions or links for explanation

6 Replies

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Laxmidhar Sahoo7y ago
Accepted answer
which type of cerificate .Cleare more
Laxmidhar Sahoo7y ago
you can generate a self signed certificate for your site .But that is only for a year.
Otherwise you have to purchase a ceritificate from a outhorised CA.

The self signed certificate generation link for ubuntu is given bollow

https://websiteforstudents.com/setup-nginx-http-server-self-signed-ssl-tls-certificates-on-ubuntu-16-04-lts-servers/
Vaibhav Singh7y ago
Hi Lakshman,

That link was kind of practical and is not answering my question.

I just need to know the basic difference between Valid Certificates and Invalid Certificates :)
:)

And also Can an end user generate a valid certificate ? If yes how ?
Laxmidhar Sahoo7y ago
I send you the url for ssl in ubuntu

https://www.godaddy.com/garage/how-to-install-an-ssl-certificate-on-ubuntu-for-nginx/
https://linuxize.com/post/secure-nginx-with-let-s-encrypt-on-ubuntu-16-04/
https://www.snel.com/support/install-lets-encrypt-ssl-on-debian-9-running-nginx-web-server/
https://www.digicert.com/csr-ssl-installation/nginx-openssl.htm
Laxmidhar Sahoo7y ago
below is the url for testing the web site for ssl .

https://www.ssllabs.com/ssltest/index.html
Vaibhav Singh7y ago
My Apologies, I mean in terms of the difference in terms of WEBAPI like using Https only when a site has a valid certificate