How to renew Lets encrypt certificate in ejabberd configured server? My server is Debian-jessie and I have tried to renew SSL certificates using the below command, certbot certonly -d mydomainname
But it produced an unexpected error:
Failed authorization procedure. : urn:acme:error:connection ::Timeout during connect (likely firewall problem). Skipping.
Timeout during connect (likely firewall problem)
To fix these errors, please make sure that your domain name was entered correctly and the DNS A record(s) for that domain contain(s) the right IP address. Additionally, please check that your computer has a publicly routable IP address and that no firewalls are preventing the server from communicating with the client. If you're using the webroot plugin, you should also verify that you are serving files from the webroot path you provided.