I had been successfully using the --standalone method for let’s encrypt but it quit working after I did a sudo git pull to get the latest version of let’s encrypt.
I followed the tutorial referenced above. When I entered the commands:
cd /opt/letsencrypt
then:
./letsencrypt-auto certonly -a webroot --webroot-path=/var/www/mysite.com/html -d mysite.com -d www.mysite.com
I got:
-bash: ./letsencrypt-auto: No such file or directory
I can see that the letsencrypt files are in place. What are the (new?) correct commands?