failed to connect to port 443

Posted July 13, 2021 220 views

I am unable to perform curl request for an address. I’ve already added port 443 in ufw, but it keeps giving this error.

curl: (28) Failed to connect to port 443: Connection timed out

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1 answer

Hi there,

In order to be able to access port 443 in most cases, you would need to have an SSL certificate installed.

You could for example use a free SSL certificate issued by Let’s Encrypt and certbot as per this tutorial here:

  • For Apache:

  • For Nginx:

Let me know how it goes.

by Kathleen Juell
by Erika Heidi
Let's Encrypt is a Certificate Authority (CA) that provides an easy way to obtain and install free TLS/SSL certificates, thereby enabling encrypted HTTPS on web servers. In this tutorial, you will use Certbot to obtain a free SSL certificate for Apache on Ubuntu 18.04 and set up your certificate to renew automatically.