I own a OVH VPS and a domain pointing on it with several subdomains like vpn.mydomain.ovh (for my vpn) and media.mydomain.ovh (fot my muximux). I tried to install a certificate for media but it failed (for other subdomains also) by using :
~/letsencrypt$ sudo ./letsencrypt-auto
But as a result I have this error and I do not know what to do or what to check.
I have added an AAAA point to the ipv6 of my VPS with no positive result.
Domain: media.mydomain.ovh Type: unauthorized Detail: Invalid response from http://media.mydomain.ovh/.well-known/acme-challenge/WyxV8RbmiQIKrt93S5xh0B76WJKN0jLtN38KdNOIYmc [xxx.xxx.xxx.xxx]: "<html>\r\n<head><title>404 Not Found</title></head>\r\n<body>\r\n<center><h1>404 Not Found</h1></center>\r\n<hr><center>nginx/1.16.1</ce" 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.