通配符证书
即一个证书能给ldsun.com、www.ldsun.com、 btc.www.ldsun.com等所有的*.ldsun.com域名使用的证书，四不四很爽。
免费证书
使用 let's encrypted 免费开源https证书，目前已经支持通配符证书申请。
使用脚本
使用国人开发的脚本acme.sh简化配置流程。
DNS解析商
鉴于国内DNS服务商的尿性，选择digitalocean作为DNS解析商，抛弃dnspod，dnspod在设置证书过程中出现各种问题。
digitalocean需要PayPal支付验证。验证后添加域名，添加解析记录。
配置步骤
1、安装acme脚本
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| curl https://get.acme.sh | sh
source ~/.bashrc
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2、申请设置 Digitalocean API
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| export DO_API_KEY="753112c4ca779ac39a19f635213b573b49ce92ae126553ebd61ac3a300934834cc"
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3、申请通配符证书
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| acme.sh --issue -d ldsun.com -d '*.ldsun.com' --dns
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4、安装证书
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| acme.sh --install-cert -d ldsun.com \
--key-file /etc/nginx/ssl/ldsun.com.key \
--fullchain-file /etc/nginx/ssl/ldsun.com.crt \
--reloadcmd "service nginx force-reload"
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5、配置Nginx
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| server {
listen 443 ssl http2 default_server;
listen [::]:443 ssl http2 default_server;
server_name ldsun.com www.ldsun.com;
location / {
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header Host $http_host;
proxy_pass http://127.0.0.1:2368;
proxy_set_header REMOTE-HOST $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
location ^~ /wp-content/ {
if (!-e $request_filename) {
rewrite ^/wp-content/uploads/(.*)$ https://obmv8nk23.qnssl.com/$1 last;
break;
}
}
# 我们采用强大的迪菲-赫尔曼密钥交换，生成命令 openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048
ssl_dhparam /etc/nginx/ssl/dhparam.pem;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_ciphers 'ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:ECDHE-ECDSA-DES-CBC3-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA:!DSS';
ssl_prefer_server_ciphers on;
ssl_session_cache shared:SSL:50m;
ssl_session_timeout 1d;
# 此处是证书文件
ssl_certificate /etc/nginx/ssl/ldsun.com.crt;
ssl_certificate_key /etc/nginx/ssl/ldsun.com.key;
# 开启 HSTS Preload 支持
add_header Strict-Transport-Security "max-age=63072000; includeSubDomains; preload";
add_header X-Frame-Options SAMEORIGIN;
add_header X-Content-Type-Options nosniff;
add_header X-XSS-Protection "1; mode=block";
access_log /var/log/nginx/ldsun.com.access.log;
error_log /var/log/nginx/ldsun.com.error.log;
}
server {
if ($host = www.ldsun.com) {
return 301 https://$host$request_uri;
} # managed by Certbot
if ($host = ldsun.com) {
return 301 https://$host$request_uri;
}
listen 80;
server_name ldsun.com www.ldsun.com;
return 404;
}
...
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6、续期
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| acme.sh --renew -d ldsun.com -d '*.ldsun.com' --force
# 默认是自动更新，添加 --force 强制手动更新
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参考：
https://sb.sb/blog/linux-acme-sh-lets-encrypt-ssl/
https://sb.sb/blog/linux-lets-encrypt-wildcard-ssl/
