Nginx服务
一、 nginx概述
性能优于apache,高并发性,单台物理主机最高可处理50000个并发请求;采用epoll模型,对系统资源利用率提高。nginx不单单能做网站服务,而且可以作为代理服务。
二、 nginx安装
yum安装与配置
配置yum源
[nginx]
name=nginx repo
baseurl=http://nginx.org/packages/centos/7/$basearch/
gpgcheck=0
enabled=1
若想要保存rpm包,修改如下设置:
vim /etc/yum.conf
keepcache=1
安装nginx
yum install -y nginx
启动nginx
systemctl start nginx && systemctl enable nginx
查看nginx监听
netstat -anptu | grep nginx
:80
nginx配置文件
/etc/nginx/nginx.conf
user nginx; //指定nginx运行用户
worker_processes 1; //指定工作进程
error_log /var/log/nginx/error.log warn; //错误日志
pid /var/run/nginx.pid; //pid存储路径
events {
worker_connections 1024; //每一个工作进程能处理的连接请求数量
}
http { //定义httpd协议
include /etc/nginx/mime.types;
default_type application/octet-stream;
log_format main '$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 65;
#gzip on;
include /etc/nginx/conf.d/*.conf; //调用外部配置文件
}
/etc/nginx/conf.d/default.conf
server { //定义网站主机头。每一个server字段代表一个网站
listen 80; //监听
server_name localhost; //网站域名
#charset koi8-r; //字符编码
#access_log /var/log/nginx/host.access.log main; //访问成功日志
location / { //定义根文档目录
root /usr/share/nginx/html;
index index.html index.htm; //定义默认访问文档
}
#error_page 404 /404.html; //错误页面
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html; //错误页面
location = /50x.html { //定义错误页面的存储路径
root /usr/share/nginx/html;
}
# proxy the PHP scripts to Apache listening on 127.0.0.1:80
#
#location ~ \.php$ { //定义nginx解析php页面的代理服务器,LAMP平台
# proxy_pass http://127.0.0.1;
#}
# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
#
#location ~ \.php$ { //利用fpm模块来解析php页面
# 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 { //定义文档访问目录权限
# deny all;
#}
}