curl: requested domain name does not match the server’s certificate

certificate is very new to me, I came to this question because docker pull failed. Then I check the url with wget and curl, they all describe certificate is somehow wrong. docker error Get https://registry-1.docker.io/v2/: x509: certificate is valid for *.cwzpvo.com, not registry-1.docker.io curl error curl https://registry-1.docker.io/v2/ curl: (51) Unable to communicate securely with peer:…

certbot claims to have worked, but fullchain.pem does not exist

I have a strange issue setting up a new nginx server on a Debian 10 box with certbot. Certbot claims to have succeeded and created the file I want… # certbot certonly –standalone –preferred-challenges http -d picosite.kloshost.online Saving debug log to /var/log/letsencrypt/letsencrypt.log Plugins selected: Authenticator standalone, Installer None Cert not yet due for renewal You…