1.获取certbot-auto
wget https://dl.eff.org/certbot-auto
2.添加执行权限
chmod a+x certbot-auto
3.自动下载和安装环境需要的组件
./certbot-auto --apache certonly
4.生成域名所需要的证书(红色部分为网站访问的路径和需要生成证书的域名)
./certbot-auto certonly --email 123456@qq.com --agree-tos --webroot -w /www/web/blxz/public_html -d blxz.qq.cn
5.生成的路径应该是(应该是四个证书文件)：
/etc/letsencrypt/live/blxz.qq.com/privkey.pem
6.配置apache文件（vhost的域名配置文件.conf）
<VirtualHost *:443> DocumentRoot /www/web/blxz/public_html ServerName blxz.qq.com ServerAlias blxz.qq.com ErrorDocument 400 /errpage/400.html ErrorDocument 403 /errpage/403.html ErrorDocument 404 /errpage/404.html SSLEngine on SSLCertificateFile /etc/letsencrypt/live/blxz.qq.com/cert.pem SSLCertificateKeyFile /etc/letsencrypt/live/blxz.qq.com/privkey.pem SSLCertificateChainFile /etc/letsencrypt/live/blxz.qq.com/chain.pem php_admin_value open_basedir /www/web/blxz:/tmp <IfModule mod_deflate.c> DeflateCompressionLevel 7 AddOutputFilterByType DEFLATE text/html text/plain text/xml application/x-httpd-php AddOutputFilter DEFLATE css js html htm gif jpg png bmp php </IfModule> </VirtualHost> <Directory /www/web/blxz> Options FollowSymLinks AllowOverride All Order allow,deny Allow from all </Directory>
7.重启apache配置
service httpd restart
注意：certbot Let‘s Encrypt永久免费但需要90天激活一次续约
