Letsencrypt problem

[TestUser]

Helo all...
Can please someone help me figure out what happened on my server.
a certificate for a domain is expired and i cannot generate new one
i get error "skipped due to unreachable"...
i looked into https://docs.directadmin.com/webservices/ssl/troubleshooting-letsencrypt.html
but cannot figure out why it is not working
any help would be highly aprechiated

 

[Zhenyapan]

maybe this domain behind cloudflare? or some rewrite rules prevent checking /.well-known/acme-challenge

 

[TestUser]

maybe this domain behind cloudflare? or some rewrite rules prevent checking /.well-known/acme-challenge

is it possible hetzner firewall? is there some "strange" port need to open for this?

 

[TestUser]

DAMN!
i have temporary disabled firewall and it works now... hmmm
Maybe becouse port 80 is closed, becouse i dont use www on this server.. but i need it to letsencrypt work?

 

[TestUser]

yes... port 80 needed for letsencrypt to work