Deploy Letsencrypt with apache on CentOS 7.X
1. change to root $ su - 2. install epel, mod_ssl, httpd, snapd $ yum -y install epel-* mod_ssl httpd $ yum -y install snapd $ systemctl enable snapd; systemctl start snapd 3. create a soft link for /snap $ ln -s /var/lib/snapd/snap /snap 4. test snapd for latest version and install classic certbot $ snap install core; snap refresh core $ snap install --classic certbot 5. $ ln -s /snap/bin/certbot /usr/bin/certbot $ certbot --apache 6. renew cert with certbot periodically or add in corn table certbot renew --dry-run certbot renew References https://snapcraft.io/docs/installing-snap-on-centos https://certbot.eff.org/instructions?ws=apache&os=centosrhel7 https://letsencrypt.org/zh-tw/donate/
