开启https小绿锁 let's encrypt

HTTPS(全称:Hyper Text Transfer Protocol over Secure Socket Layer),是以安全为目标的HTTP通道,简单讲是HTTP的安全版。即HTTP下加入SSL层,HTTPS的安全基础是SSL,因此加密的详细内容就需要SSL。

Let's Encrypt

Let's Encrypt是2016年4月12日成立的一家证书授权中心,提供免费的传输层安全(TLS)X.509证书,通过自动化的过程消除目前安全网站证书需要手工创建,加密,签名,安装以及更新的复杂性。

获取 let's encrypt
    git clone https://github.com/certbot/certbot.git
安装ssl证书
    ./certbot-auto certonly --standalone -d example.com --email example@email.com
    
    # certbot-auto renew  重新安装之前存在的ssl证书
配置nginx
    server {
        listen       443 ssl;
        ssl          on;
        ssl_certificate /etc/letsencrypt/live/example.com/cert.pem;
        ssl_certificate_key /etc/letsencrypt/live/example.com/privkey.pem;
        ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
        ssl_prefer_server_ciphers on;
        ssl_ciphers ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP;

        #双向 ssl 认证
        # ssl_verify_client on;
        # ssl_client_certificate /etc/letsencrypt/live/example.com/cert.pem;
    }
# https 

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