#user nobody;
worker_processes 1;#線程數通常設置成和cpu數量相同
#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;#單個后臺worker process進程的最大并發鏈接數
# 并發總數是 worker_processes 和 worker_connections 的乘積
# 即 max_clients = worker_processes * worker_connections
# 在設置了反向代理的情況下，max_clients = worker_processes * worker_connections / 4 為什么
# 為什么上面反向代理要除以4，應該說是一個經驗值
# 根據以上條件，正常情況下的Nginx Server可以應付的最大連接數為：4 * 8000 = 32000
# worker_connections 值的設置跟物理內存大小有關
# 因為并發受IO約束，max_clients的值須小于系統可以打開的最大文件數
# 而系統可以打開的最大文件數和內存大小成正比，一般1GB內存的機器上可以打開的文件數大約是10萬左右
}
http {
#設定mime類型,類型由mime.type文件定義
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 指令指定 nginx 是否調用 sendfile 函數（zero copy 方式）來輸出文件，
#對于普通應用，必須設為 on,
#如果用來進行下載等應用磁盤IO重負載應用，可設置為 off，
#以平衡磁盤與網絡I/O處理速度，降低系統的uptime.
sendfile on;
#tcp_nopush on;
#keepalive_timeout 0;
keepalive_timeout 65;
#開啟gzip壓縮
gzip on;
server {
listen 80;
server_name localhost;
#charset koi8-r;
#access_log logs/host.access.log main;
location / {
#允許跨域，在頭文件中添加 'Access-Control-Allow-Origin' '*'
add_header 'Access-Control-Allow-Origin' '*';
#設置客戶端訪問的真實頭文件
proxy_set_header Host $host;
#設置客戶端訪問代理的真實ip
proxy_set_header X-Real-IP $remote_addr;
proxy_pass http://172.16.6.1;
}
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
# proxy the PHP scripts to Apache listening on 127.0.0.1:80
#
#location ~ \.php$ {
# 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;
# }
#}
}
