SSL Certificate DNS Error

[_az]

@Arao

Is it looking for port 80 whereas my config file /etc/nginx/sites-available/support.konspec.in.conf has 8081 listed?

Yeah, if you're doing some tricky port-forwarding or proxying, you might need to tell Certbot to use 8081 as its bind port for the HTTP challenge:

--http-01-port 8081