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My infrastructure is in Microsoft Azure, I have an Azure Load Balancer balancing port 80 through of haproxy servers, for private network the haproxy server comunicate with the webservers, when I execute the certbot-auto script in the webserver, this server could not connect to the client to verify the domain. I can’t validate the domain through of the comunication with the haproxy server.
My domain is:ciqa.org
I ran this command: ./certbot-auto
It produced this output:
Failed authorization procedure. ciqa.org (tls-sni-01): urn:acme:error:connection :: The server could not connect to the client to verify the domain :: Failed to connect to 220.127.116.11:443 for TLS-SNI-01 challenge
The following errors were reported by the server:
Detail: Failed to connect to 18.104.22.168:443 for TLS-SNI-01
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.
My operating system is (include version): Ubuntu 16.04 Haproxy 1.6.3
My web server is (include version): Ubuntu 14.04 Apache 2.4.7
My hosting provider, if applicable, is: N/A
I can login to a root shell on my machine (yes or no, or I don’t know): yes
I’m using a control panel to manage my site (no, or provide the name and version of the control panel): Yes Ispconfig