Let’s Encrypt with Certbot and Firewalld

Let’s Encrypt with Certbot and Firewalld

The next step towards making Fossadventures.com a great website is enabling HTTPS. This was much easier than I expected thanks to Let’s Encrypt and the fantastic Certbot tool. I used this openSUSE instruction page.


Step 1: add the required repo with the command:

sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/python/openSUSE_Tumbleweed/devel:languages:python.repo


Step 2: update the repositories:

sudo zypper refresh


Step 3: install the Certbot application:

sudo zypper install certbot python-certbot python-certbot-nginx


Step 4: run the Certbot application:

sudo certbot --nginx


I needed to answer some basic questions:

  • For which domains the certificates needed to be applied (www.fossadventures.com, fossadventures.com)
  • Whether HTTPS access is required or optional (required)
  • Verification of the DNS records
  • If you want to be added to the EFF mailing list

And “voila” the setup was finished.


Step 5:  update the firewall. I used the commands below. The last command was used to see if the updates were properly applied.

sudo firewall-cmd --zone=public --add-service=https --permanent

sudo firewall-cmd --zone=public --add-port=443/tcp --permanent

sudo firewall-cmd --reload

sudo firewall-cmd --list-all


The final test was to access my website with Firefox… and… success! Wow. That was much easier than expected.

Published on: 10 April 2018

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