Hello, Today I successfully obtained and installed two certificates from Let's Encrypt for two of the domains that I manage by means of ISPCcnfig 3 on by Ubuntu 14.04 machine. Now I would like to do the same for ISPConfig's web interface. It's accessible at Code: https://server.mysite.com:8080 , the mysite.com domain itself is also managed by ISPConfig and has web content there. So, I tried Code: certbot certonly --webroot -w /var/www/mysite.com -d server.mysite.com and Code: certbot certonly --webroot -w /usr/local/ispconfig/interface/web -d server.mysite.com but both returned the following error: I have double-checked and there is an A DNS record for the 'server' subdomain. Could you advise me how to proceed? Thank you!