#user nobody;
worker_processes 1;
#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;
#pid  logs/nginx.pid;
events {
 worker_connections 1024;
}
http {
 include  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 logs/access.log main;
 sendfile  on;
 #tcp_nopush  on;
 #keepalive_timeout 0;
 keepalive_timeout 65;
 #gzip on;
 server {
  listen  80;
  server_name localhost;
  #charset koi8-r;
  #access_log logs/host.access.log main;
  location / {
   root html;
   index index.html index.htm;
  }
  #error_page 404    /404.html;
  # redirect server error pages to the static page /50x.html
  #
  error_page 500 502 503 504 /50x.html;
  location = /50x.html {
   root 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;
  #}
 }
 # another virtual host using mix of IP-, name-, and port-based configuration
 #
 #server {
 # listen  8000;
 # listen  somename:8080;
 # server_name somename alias another.alias;
 # location / {
 #  root html;
 #  index index.html index.htm;
 # }
 #}
 # HTTPS server
 #
 #server {
 # listen  443 ssl;
 # server_name localhost;
 # ssl_certificate  cert.pem;
 # ssl_certificate_key cert.key;
 # ssl_session_cache shared:SSL:1m;
 # ssl_session_timeout 5m;
 # ssl_ciphers HIGH:!aNULL:!MD5;
 # ssl_prefer_server_ciphers on;
 # location / {
 #  root html;
 #  index index.html index.htm;
 # }
 #}
}

...    #全局塊
events {   #events塊
 ...
}
http  #http塊
{
 ... #http全局塊
 server  #server塊
 { 
  ...  #server全局塊
  location [PATTERN] #location塊
  {
   ...
  }
  location [PATTERN] 
  {
   ...
  }
 }
 server
 {
  ...
 }
 ...  #http全局塊
}

########### 每個指令必須有分號結(jié)束。#################
#user administrator administrators; #配置用戶或者組，默認(rèn)為nobody nobody。
#worker_processes 2; #允許生成的進(jìn)程數(shù)，默認(rèn)為1
#pid /nginx/pid/nginx.pid; #指定nginx進(jìn)程運(yùn)行文件存放地址
error_log log/error.log debug; #制定日志路徑，級別。這個設(shè)置可以放入全局塊，http塊，server塊，級別以此為：debug|info|notice|warn|error|crit|alert|emerg
events {
 accept_mutex on; #設(shè)置網(wǎng)路連接序列化，防止驚群現(xiàn)象發(fā)生，默認(rèn)為on
 multi_accept on; #設(shè)置一個進(jìn)程是否同時接受多個網(wǎng)絡(luò)連接，默認(rèn)為off
 #use epoll;  #事件驅(qū)動模型，select|poll|kqueue|epoll|resig|/dev/poll|eventport
 worker_connections 1024; #最大連接數(shù)，默認(rèn)為512
}
http {
 include  mime.types; #文件擴(kuò)展名與文件類型映射表
 default_type application/octet-stream; #默認(rèn)文件類型，默認(rèn)為text/plain
 #access_log off; #取消服務(wù)日志 
 log_format myFormat '$remote_addr–$remote_user [$time_local] $request $status $body_bytes_sent $http_referer $http_user_agent $http_x_forwarded_for'; #自定義格式
 access_log log/access.log myFormat; #combined為日志格式的默認(rèn)值
 sendfile on; #允許sendfile方式傳輸文件，默認(rèn)為off，可以在http塊，server塊，location塊。
 sendfile_max_chunk 100k; #每個進(jìn)程每次調(diào)用傳輸數(shù)量不能大于設(shè)定的值，默認(rèn)為0，即不設(shè)上限。
 keepalive_timeout 65; #連接超時時間，默認(rèn)為75s，可以在http，server，location塊。
 upstream mysvr { 
  server 127.0.0.1:7878;
  server 192.168.10.121:3333 backup; #熱備
 }
 error_page 404 https://www.baidu.com; #錯誤頁
 server {
  keepalive_requests 120; #單連接請求上限次數(shù)。
  listen  4545; #監(jiān)聽端口
  server_name 127.0.0.1; #監(jiān)聽地址  
  location ~*^.+$ {  #請求的url過濾，正則匹配，~為區(qū)分大小寫，~*為不區(qū)分大小寫。
   #root path; #根目錄
   #index vv.txt; #設(shè)置默認(rèn)頁
   proxy_pass http://mysvr; #請求轉(zhuǎn)向mysvr 定義的服務(wù)器列表
   deny 127.0.0.1; #拒絕的ip
   allow 172.18.5.54; #允許的ip   
  } 
 }
}