军哥lnmp环境，先配置好 ssl 证书。

server
    {
        listen 443 ssl http2;
        #listen [::]:443 ssl http2;
        server_name www.123.com 123.com;

        ssl_certificate /usr/local/nginx/conf/ssl/xxxxxxxx.cer;
        ssl_certificate_key /usr/local/nginx/conf/ssl/xxxxxxxxxx.key;
        ssl_session_timeout 5m;
        ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3;
        ssl_prefer_server_ciphers on;
        ssl_ciphers "TLS13-AES-256-GCM-SHA384:TLS13-CHACHA20-POLY1305-SHA256:TLS13-AES-128-GCM-SHA256:TLS13-AES-128-CCM-8-SHA256:TLS13-AES-128-CCM-SHA256:EECDH+CHACHA20:EECDH+CHACHA20-draft:EECDH+AES128:RSA+AES128:EECDH+AES256:RSA+AES256:EECDH+3DES:RSA+3DES:!MD5";
        ssl_session_cache builtin:1000 shared:SSL:10m;
        # openssl dhparam -out /usr/local/nginx/conf/ssl/dhparam.pem 2048
        ssl_dhparam /usr/local/nginx/conf/ssl/dhparam.pem;

location / {
            proxy_pass https://www.google.com;
            proxy_redirect off;
            sub_filter_once off;
            sub_filter "www.google.com" "123.com";
            proxy_set_header Host "www.google.com";
            proxy_set_header Referer $http_referer;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header User-Agent $http_user_agent;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header X-Forwarded-Proto https;
            proxy_set_header Accept-Encoding "";
            proxy_set_header Accept-Language "zh-CN";
            proxy_cookie_domain www.google.com 123.com;
            proxy_set_header Cookie "PREF=ID=047808f19f6de346:U=0f62f33dd8549d11:FF=2:LD=en-US:NW=1:TM=1325338577:LM=1332142444:GM=1:SG=2:S=rE0SyJh2W1IQ-Maw";
        }

server
    {
        listen 80;
        server_name www.123.com 123.com;
        return 301 https://123.com$request_uri;
    }

达到的效果：源站是https，然后访问反代服务器也是https。

使用军哥的 LNMP，反代配置如下：

location / {
        sub_filter 123.com 123.net;
        proxy_pass        https://123.com;
        proxy_set_header   X-Real-IP 源站IP地址;
        proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header   Referer https://123.com;
        proxy_set_header REMOTE-HOST $remote_addr;
        add_header X-Cache $upstream_cache_status;
        proxy_set_header Accept-Encoding "";
        sub_filter "123.com" "123.net";
        sub_filter_once off;
        expires 12h;
    }