Let’s Encrypt/Certbot Wildcard SSL certificate

export LC_ALL="en_US.UTF-8"
export LC_CTYPE="en_US.UTF-8"
yum install -y git
cd /opt
git clone https://github.com/certbot/certbot.git
cd certbot && ./certbot-auto
 /opt/certbot/certbot-auto certonly --manual --preferred-challenges dns -d *.域名.后缀

--preferred-challenges dns的参数会要求建立一个_acme-challenge.的txt dns指向记录验证域名.

./certbot-auto certificates

yum install install certbot python3-cloudflare python3-certbot-dns-cloudflare  -y
echo "00 04 01 * * certbot renew" >> /etc/cron.monthly/certbot
chmod 644 /etc/cron.monthly/certbot


certbot certonly  --agree-tos --email [email protected]   \
  --dns-cloudflare \
  --dns-cloudflare-credentials /root/cf.ini  \
  -d  '*.baidu.XXX'