cat /usr/local/nginx/conf/nginx.conf



#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;
# }
#}
}
一、整体结构概览
配置文件完整地包含了 Nginx 的五个核心层次:
1. 全局块(main) → 最外层,以 # 注释为主
2. events 块 → 配置事件模型
3. http 块 → HTTP 核心配置
├── 4. server 块 → 虚拟主机配置(默认只有一个)
│ ├── 5. location / → 根路径处理
│ └── 5. location = /50x.html → 错误页面
└── 其他 server 块(全被注释)
二、各配置块详细分析
1. 全局配置块(main)
#user nobody; # 默认以nobody运行,建议根据实际需要开启并指定用户
worker_processes 4; # 在top按1查看cpu核数 这里我是4个 其实也可以写成auto自动识别
worker_cpu_affinity 0001 0010 0100 1000; #因为是四个
worker_rlimit_nofile 655360; #设置 每个 worker 进程可以打开的最大文件描述符数量。
#error_log logs/error.log; # 错误日志,自己选级别
error_log logs/error.log notice;
#error_log logs/error.log info;
pid logs/nginx.pid; # PID文件位置

2. events 块
events {
worker_connections 65536; # 每个worker进程最大连接数65536
}
特点:
- 没有指定
use指令,Nginx 会自动选择当前系统最优的事件模型(Linux 会自动用epoll) worker_connections 1024是默认值,可以满足小型应用

3. http 块基础配置
http {
include mime.types; # 引入文件类型映射
default_type application/octet-stream; # 默认文件类型
log_format main ...; #
access_log logs/access.log main; # 访问日志
sendfile on; # 高效文件传输
tcp_nopush on; # 通常与sendfile配合使用
#keepalive_timeout 0;
keepalive_timeout 65; # 长连接超时65秒
#gzip on; # Gzip压缩未启用

特点:
- 只开启了最基本的优化项(
sendfile、keepalive_timeout) - 日志、Gzip 压缩等常用功能都被注释了
4. server 块(默认虚拟主机)
配置如下图

发表回复