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申请免费证书

install acme.sh

curl https://get.acme.sh | sh -s email=example@yourmail.com

request certification for Nginx server, this only works for Nginx server.

acme.sh --issue --nginx -d cloudzhong.top

Now we can config at Nginx to let this site to be https site.

acme.sh will also add an cronjob to periodically update this certification, So you don’t need worry of the expiration of the certification.