How nginx implements port forwarding
背景:
(推荐教程:nginx教程)
最近在部署一个小程序的后台,但是小程序调用的接口是不能带端口号的,那么如果服务器上面80端口已经被其他程序占用,就只能采用端口转发或者虚拟目录,我采用的是端口转发,或者说当在一台主机上需要部署多个web应用,并且需要能在80端口访问这些web时,就可以采用这种方法,也可以叫做nginx反向代理用于实现负载均衡。
具体介绍:
加入服务器域名是test.com,那么你可以通过test.com/news在80端口访问新闻应用,但是服务器上分配的是其他端口,如8081。
对应的nginx配置如下:
80端口的配置: 访问test.com/news => 127.0.0.1:8081 ,这里有一个需要注意的地方是转发的url最后需要加上’/’,这相当指定了url’/’,如果代理服务器地址中是带有URL的,此URL会替换掉 location 所匹配的URL部分。
test.com/news/api,访问的是ip:8081/api;而如果代理服务器地址中是不带有URI的,则会用完整的请求URL来转发到代理服务器test.com/news/api,访问的是ip:8081/news/api。
server { listen 80; # listen [::]:80 default_server; server_name test.com root /usr/share/nginx/html; # Load configuration files for the default server block. include /etc/nginx/default.d/*.conf; location / { } location /news{ proxy_pass http:test.com:8081/; } }
8081端口的配置: 与平时配置没什么差别
server { listen 8081; server_name localhost; root /var/www/project; location / { index index.php index.html index.htm; if ( !-e $request_filename){ rewrite ^(.*)$ /index.php?s=/$1 last; break; } } #error_page 500 502 503 504 /50x.html; #location = /50x.html { #root /usr/share/ngixn/html; #} #我部署的是PHP项目,这里配置PHP解析 location ~ \.php$ { fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; include /etc/nginx/fastcgi_params; include /etc/nginx/fastcgi.conf; } }
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