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. https://crt.sh/?q=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: mail.gounivers.com
I ran this command:sudo certbot certonly -a apache --agree-tos --no-eff-email --staple-ocsp --email admin@gounivers.com -d mail.gounivers.com
It produced this output:
Waiting for verification...
Cleaning up challenges
Failed authorization procedure. mail.gounivers.com (http-01): urn:ietf:params:acme:erro r:unauthorized :: The client lacks sufficient authorization :: Invalid response from ht tp://mail.gounivers.com/.well-known/acme-challenge/y0u95gW-DmB6FM98yVo8c_Q75RFBrg7VILlp rCOsKzA [173.212.218.246]: "<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">\n<html ><head>\n<title>404 Not Found</title>\n</head><body>\n<h1>Not Found</h1>\n<p"
IMPORTANT NOTES:
- The following errors were reported by the server:
Domain: mail.gounivers.com
Type: unauthorized
Detail: Invalid response from
http://mail.gounivers.com/.well-known/acme-challenge/y0u95gW-DmB6FM98yVo8c_Q75RFBrg7 VILlprCOsKzA
[173.212.218.246]: "<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML
2.0//EN\">\n<html><head>\n<title>404 Not
Found</title>\n</head><body>\n<h1>Not Found</h1>\n<p"
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):Server version: Apache/2.4.29 (Ubuntu)
The operating system my web server runs on is (include version):Ubuntu18.04
My hosting provider, if applicable, is:contabo
I can login to a root shell on my machine (yes or no, or I don't know):Y
I'm using a control panel to manage my site (no, or provide the name and version of the control panel):webmin, but using comand line
The version of my client is (e.g. output of certbot --version
or certbot-auto --version
if you're using Certbot):certbot 0.27.0