Nginx 配置代理上网

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发布时间：2013-12-09 23:23:56

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1. Nginx简介 Nginx是和Apache相似的, 以前实验室的网络是不受限制的, 而宿舍的网络很多国外网站都打不开, 宿舍和实验室都处于校园网, 这个就可以通过代理在宿舍通过实验室网络浏览网页. 这样利用Nginx忘了算是正向代理还是反向代理了????

2. 下面是修改了的配置文件

# /etc/nginx/nginx.conf

######################################################################### This is the main Nginx configuration file. ## More information about the configuration options is available on # * the English wiki - http://wiki.nginx.org/Main# * the Russian documentation - http://sysoev.ru/nginx/########################################################################
#----------------------------------------------------------------------# Main Module - directives that cover basic functionality## http://wiki.nginx.org/NginxHttpMainModule##----------------------------------------------------------------------
user nginx;worker_processes 1;
error_log /var/log/nginx/error.log;#error_log /var/log/nginx/error.log notice;#error_log /var/log/nginx/error.log info;
pid /var/run/nginx.pid;

#----------------------------------------------------------------------# Events Module ## http://wiki.nginx.org/NginxHttpEventsModule##----------------------------------------------------------------------
events { worker_connections 1024;}

#----------------------------------------------------------------------# HTTP Core Module## http://wiki.nginx.org/NginxHttpCoreModule ##----------------------------------------------------------------------
http { include /etc/nginx/mime.types; default_type application/octet-stream;
log_format main '$remote_addr - $remote_user [$time_local] "$request" ' '$status $body_bytes_sent "$http_referer" ' '"$http_user_agent" "$http_x_forwarded_for"';
access_log /var/log/nginx/access.log main;
sendfile on; #tcp_nopush on;
#keepalive_timeout 0; keepalive_timeout 65;
#gzip on; # # The default server # server {resolver 222.201.130.30; listen 82; server_name _;
#charset koi8-r;
#access_log logs/host.access.log main;
# location / { proxy_pass http://$http_host$request_uri; }
error_page 404 /404.html; location = /404.html { root /usr/share/nginx/html; }
# redirect server error pages to the static page /50x.html # error_page 500 502 503 504 /50x.html; location = /50x.html { root /usr/share/nginx/html; }
# proxy the PHP scripts to Apache listening on 127.0.0.1:80 # #location ~ /.php$ { # proxy_pass http://127.0.0.1; #}
# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000 # #location ~ /.php$ { # root html; # fastcgi_pass 127.0.0.1:9000; # fastcgi_index index.php; # fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name; # include fastcgi_params; #}
# deny access to .htaccess files, if Apache's document root # concurs with nginx's one # #location ~ //.ht { # deny all; #} }
# Load config files from the /etc/nginx/conf.d directory include /etc/nginx/conf.d/*.conf;
}

3. 主要修改的地方目前现状：只有1个机器能上网(web),其他机器不能
方法：能上网的做一个代理web服务器中转，其他机器连接它即可。采用nginx

Nginx配置如下：

server{
resolver x.x.x.x;
listen 82;
location / {
proxy_pass http://$http_host$request_uri; }}
注意项：1. 不能有hostname2. 必须有resolver, 即dns，即上面的x.x.x.x，换成你们的DNS服务器ip即可3 . $http_host和$request_uri是nginx系统变量，不要想着替换他们，保持原样就OK。
查看dns方法cat /etc/resolv.conf
4. 代理使用在linux, 我记得在当时是用的chrome浏览器的一个插件, 填下代理服务器IP和端口就可以了.
在需要访问外网的机器上执行以下操作之一即可：1. export http_proxy=http://yourproxyaddress：proxyport2. gedit ~/.bashrc export http_proxy=http://yourproxyaddress：proxyportyourproxyaddress也就是你的Nginx服务器的ip了，proxyport就是上面配置中的82，可以根据自己的需要修改。

举例：