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nginx优化配置说明

2012-12-12 11:31 453 查看
nginx 是一个高性能的http和反向代理 服务器,也是一个imap/pop3/smtp代理服务器

user ben woyoudever;				#工作进程使用的用户和组
worker_processes  10;				#打开的工作进程数,应该是cpu的个数

worker_rlimit_nofile 10240;			#指定一个进程最多打开的文件数		最好与ulimit -n 保持一致

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;		#错误日志以及错误等级 [debug|info|notice|warn|error|crit]

pid        logs/nginx.pid;			#nginx主进程的pid数

events {
#use [kqueue|rtsig|epoll|poll|select]
use epoll;					#使用epoll网络 I/O模型
worker_connections  65535;			#单个进程的最大连接数
}

http {
include       mime.types;			#文件扩展名和文件类型映射表
default_type  application/octet-stream;	#默认文件格式

charset  gb2312,utf-8;				#默认编码
server_names_hash_bucket_size 128;			#服务器名称的hash表大小
#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;
client_header_buffer_size 4K;		#客户端头的缓冲区大小
open_file_cache max=10240 inactive=20s;	#打开文件的缓冲
open_file_cache_valid 30s;			#多久时间检查一下缓存的有效信息
open_file_cache_min_uses	1;		#最少使用次数

sendfile        on;				#开启高效网络传输
tcp_nopush     on;			        #防止网络阻塞
tcp_nodelay     on;

#keepalive_timeout  0;
keepalive_timeout  65;			#keepalive超时时间

gzip  on;					#是否开启压缩模块,要用到cpu
zip_min_length  1k;				#最小压缩文件大小
gzip_buffers     4 16k;		        #压缩缓冲区
gzip_http_version 1.0;			#压缩版本
gzip_comp_level 2;
gzip_types       text/plain application/x-javascript text/css application/xml;			#压缩的类型
gzip_vary on;

client_max_body_size 8m;		        #上传文件大小限制

fastcgi_connect_timeout 300;		#fastcgi连接超时时间
fastcgi_send_timeout 300;			#发送超时时间
fastcgi_read_timeout 300;			#读取超时时间
fastcgi_buffer_size 64k;			#缓冲区大小
fastcgi_buffers 4 64k;			#设置多大的缓冲区缓冲
fastcgi_busy_buffers_size 128k;
fastcgi_temp_file_write_size 128k;

fastcgi_cache TEST;				#开启fastcgi缓存
fastcgi_cache_valid 200 302 1h;		#200 302应答一个小是
fastcgi_cache_valid 301 1d;
fastcgi_cache_valid any 1m;
fastcgi_cache_min_uses 1;

upstream backend_server {				#后端负载
#server   192.168.10.22:80 weight=1  max_fails=2 fail_timeout=30s;
server   192.168.10.27:80 weight=1  max_fails=2 fail_timeout=30s;
#server   192.168.10.20:80 weight=1  max_fails=2 fail_timeout=30s;
}
server {
listen       808;
server_name  localhost;			#绑定的域名

#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;
#}
#查看nginx状态			要添加 --with-http_stub_status_module模块
location /nginxstatus{
sub_status on;
access_log on;
}
}

# 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;
#    server_name  localhost;

#    ssl                  on;
#    ssl_certificate      cert.pem;
#    ssl_certificate_key  cert.key;

#    ssl_session_timeout  5m;

#    ssl_protocols  SSLv2 SSLv3 TLSv1;
#    ssl_ciphers  HIGH:!aNULL:!MD5;
#    ssl_prefer_server_ciphers   on;

#    location / {
#        root   html;
#        index  index.html index.htm;
#    }
#}

}
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