Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. crt.sh | example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.
My domain is: dev.tfitaxsaver.ie
I ran this command: sudo certbot certonly --email firstname.lastname@example.org -d dev.tfitaxsaver.ie --agree-tos --manual
It produced this output:
Failed authorization procedure. dev.tfitaxsaver.ie (http-01): urn:ietf:params:acme:error:unauthorized :: The client lacks sufficient authorization :: Invalid response from http://dev.tfitaxsaver.ie/.well-known/acme-challenge/3p7LUlkX81Ih57gFWHTQjtyxUc9EvLHrGA_116SyINc [220.127.116.11]: "\n\n\n\n<!-- FILE NAME SUGGESTIONS:\n * html--.well-known--acme-challenge--3p7LUlkX8"
The following errors were reported by the server:
Detail: Invalid response from
[18.104.22.168]: "\n\n\n\n<!-- FILE NAME SUGGESTIONS:\n *
To fix these errors, please make sure that your domain name was
entered correctly and the DNS A/AAAA record(s) for that domain
contain(s) the right IP address.
My web server is (include version): Azure Web App
The operating system my web server runs on is (include version): Azure Web App
My hosting provider, if applicable, is: Azure
I can login to a root shell on my machine (yes or no, or I don't know): DOn't know
I'm using a control panel to manage my site (no, or provide the name and version of the control panel): No
The version of my client is (e.g. output of
certbot --version or
certbot-auto --version if you're using Certbot):
Note: Our DNS Records point to a Traffic Manager profile in Azure which has a endpoint of a public load balancer, this forwards traffic through the firewall / app gateway to the Web App. I wonder whether the fact the DNS records don't resolve directly to the web app is the issue?