Let's Encrypt! setup: Failed to connect...
> Detail: Failed to connect to xx.xx.xxx.xxx:443 for tls-sni-01 challenge
I enacted a firewall policy, but I did not give any rules to open port 443. Should I open port 443 to allow Let's Encrypt do it's magic and then immediately close the port it after the process is done?
1 Reply
@linoxus:
Should I open port 443 to allow Let's Encrypt do it's magic
Yes, as long as you use TLS-SNI-01 validation. (HTTP-01 uses port 80. DNS-01 uses… DNS.)
@linoxus:
and then immediately close the port it after the process is done?
If you want.
You're not going to run an HTTPS server or something else on port 443?