Comment on Stuck on Let's Encrypt certificate issuance due to firewall issue even after opening necessary ports
witten@lemmy.world 11 months ago
If this is on a home network, have you also forwarded port 80 from your router to your machine running certbot?
This is one of the reasons I use the DNS challenge instead… Then you don’t have to route all these Let’s Encrypt challenges into your internal network.
someoneFromInternet@lemmy.ml 11 months ago
Image like this?
scott@lem.free.as 11 months ago
You don’t need UDP on port 80 forwarded through. HTTP is TCP only.
domi@lemmy.secnd.me 11 months ago
HTTP/3 is UDP as well but only on port 443.
witten@lemmy.world 11 months ago
Maybe…? I’m not familiar with that router software, but it looks plausible to me…