Hello and thank you very much for your thorough reply.

When you say to disable domain redirection - is that something that would have been set within the domain setup on linode? If so, I do not see anything there that would redirect (although not even sure where that would necessarily be defined). I do have "A record" set within the Linode setup for the domain which specifies the IP address.

The Nginx configuration might be more interesting (and perhaps has something incorrect). within /etc/nginx directory I do not have a system-enabled directory, however, I do have a sites-enabled directory (and there really isn't anything in it. Within the /etc/nginx/conf.d directory I do have files for each of the sites (website1.ca.conf and website2.net.conf). Each of these files do contain references to their respective site name (eg. the website1 file has lines such as root var/www/website1.ca, server_name www.website1.ca).

i did forget to mention that the letsencrypt ssl certificate lines in each file (website1 and website2) both reference website1 in the line. In other words the letsencrypt ssl certificate lines in the website2 file do reference website 1.

My bad, you are correct it is sites-enabled and not system-enabled. i will edit my answer

The domain redirection most commonly handled in registrar site (where you are purchasing domain) if there are no domain redirection set then i think its already correct.

For Nginx part i usually add the configuration files for each website in /etc/nginx/sites-enabled. The point we set nginx is to route the traffic for which domain is accessing to which website. So at the end we will expect the route to be come like : user typing domain in web browser -> registrar directing domain to "A Record" (VPS IP address) -> Nginx directing user to which website -> Website will show in the browser

i think there's more to do in your Nginx site to do some redirecting. You can leave SSL at the end once all is well accessed

I now have a problem. I replaced my nginx configuration files for the two sites with the two files you sent for website1 and website2 (of course I changed the lines withing the file to reflect my website names). When I did this and rebooted the server neither of the websites would work. I therefore put the configuration files back to what they were and rebooted, however, I now cannot get either site to come up. when trying to call up the site I get message that the site can't be reached and the site refused to connect.

So now my site is down entirely. I have gone back through many times to ensure the files were returned to what they were and rebooted but cannot get anything working.

No worries, I did manage to get it back up and working. I do still have the issue with website2.net actually opening website1.ca and www.website2.net actually opening website2.net. Have been talking to linode people about it as well. They think there must be something within my odoo setup that is causing the problem. One other question I have for your if you happen to notice - how can I fully disable the 2nd website on my odoo setup (website2) without entirely deleting it from the system. Would maybe like to just turn it off for now.

i think you can go to website list and then check one of them and archieve, it will deactivate the website and can be activated later if you unarchieve it