查看原文：Nginx 实现端口转发——星河赵博客
Summary
Nginx在监听某一端口（如80端口）时，通过配置负载均衡池，根据不同的域名，将同一端口的HTTP/HTTPS请求分发到不同的端口。
实例如下：
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|
upstream one_pool{
server 127.0.0.1:5000;
}
upstream two_pool{
server 127.0.0.1:6000;
}
server {
listen 80;
server_name one.poryoung.cn;
return 301 https://$server_name$request_uri;
}
server {
listen 443;
server_name one.poryoung.cn;
location / {
proxy_pass http://one_pool;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection 'upgrade';
proxy_set_header Host $host;
proxy_cache_bypass $http_upgrade;
}
ssl on;
ssl_certificate /.../*.poryoung.cn/fullchain.cer;
ssl_certificate_key /.../*.poryoung.cn.key;
ssl_session_timeout 5m;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_prefer_server_ciphers on;
ssl_ciphers 'EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH';
}
server {
listen 80;
server_name two.poryoung.cn;
return 301 https://$server_name$request_uri;
}
server {
listen 443;
server_name two.poryoung.cn;
location / {
proxy_pass http://two_pool;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection 'upgrade';
proxy_set_header Host $host;
proxy_cache_bypass $http_upgrade;
}
ssl on;
ssl_certificate /.../*.poryoung.cn/fullchain.cer;
ssl_certificate_key /.../*.poryoung.cn.key;
ssl_session_timeout 5m;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_prefer_server_ciphers on;
ssl_ciphers 'EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH';
}
|
其中的域名和证书部分需要替换。
Let’s Encrypt已经支持泛域名证书申请，网上有许多教程，比较详细的如Let’s Encrypt免费泛域名证书申请教程步骤，使用ACME.sh申请。
在申请过程中，./acme.sh --issue -d *.xxorg.com -d xxorg.com --dns和./acme.sh --renew -d *.xxorg.com -d xxorg.com命令可能会遇到dns manual mode警告而失败的情况，在其后加上--yes-I-know-dns-manual-mode-enough-go-ahead-please即可
