安装 版本说明 Mainline version        开发版本
Stable version        稳定版本
Legacy versions        历史版本
  
安装源 To set up the yum repository for RHEL/CentOS, create the file named /etc/yum.repos.d/nginx.repo with the following contents:
1 2 3 4 5 6 7 [nginx] name=nginx repo baseurl=http://nginx.org/packages/OS/OSRELEASE/$basearch/ gpgcheck=0 enabled=1 baseurl=http://nginx.org/packages/centos/7/$basearch/ 
 
 
Replace “OS” with “rhel” or “centos”, depending on the distribution used, and “OSRELEASE” with “6” or “7”, for 6.x or 7.x versions, respectively.
查看nginx安装包 yum list | grep nginx
安装nginx yum install nginx -y
查看版本信息 1 2 3 4 5 6 7 8 [root@host ~]# nginx -v nginx  version: nginx/1 .14 .2 [root@host ~] nginx version: nginx/1 .14 .2  built by gcc 4 .8 .5  20150623  (Red Hat 4 .8 .5 -28 ) (GCC) built with OpenSSL 1 .0 .2k -fips  26  Jan 2017  TLS SNI support enabled configure arguments: --prefix=/etc/nginx --sbin-path=/usr/sbin/nginx --modules-path=/usr/lib64/nginx/modules --conf-path=/etc/nginx/nginx.conf --error -log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --pid-path=/var/run/nginx.pid --lock-path=/var/run/nginx.lock --http-client-body-temp-path=/var/cache/nginx/client_temp --http-proxy-temp-path=/var/cache/nginx/proxy_temp --http-fastcgi-temp-path=/var/cache/nginx/fastcgi_temp --http-uwsgi-temp-path=/var/cache/nginx/uwsgi_temp --http-scgi-temp-path=/var/cache/nginx/scgi_temp --user=nginx --group=nginx --with-compat --with-file-aio --with-threads --with-http_addition_module --with-http_auth_request_module --with-http_dav_module --with-http_flv_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_mp4_module --with-http_random_index_module --with-http_realip_module --with-http_secure_link_module --with-http_slice_module --with-http_ssl_module --with-http_stub_status_module --with-http_sub_module --with-http_v2_module --with-mail --with-mail_ssl_module --with-stream --with-stream_realip_module --with-stream_ssl_module --with-stream_ssl_preread_module --with-cc-opt='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -fPIC'  --with-ld-opt='-Wl,-z,relro -Wl,-z,now -pie'  
 
nginx 配置解析 
user 
设置nginx服务的系统使用用户 
 
 
worker_processes 
工作进程数 
 
error_log 
nginx的错误日志 
 
pid 
nginx服务 
 
1 2 3 4 5 6 7 8 user  www www;worker_processes  auto;worker_cpu_affinity  auto;error_log  /home/wwwlogs/nginx_error.log error ;pid  /run/nginx.pid;worker_rlimit_nofile  65535 ;
 
events 
worker_connections 
每个工作进程运行的最大链接数 
 
 
 
use 
工作进程模式 
 
1 2 3 4 events  {    use  epoll ;     worker_connections  65535 ; } 
 
nginx 模块 stub_status 1 2 3 location  /nginx {	stub_status; } 
 
1 2 3 4 Active connections: 20  server accepts handled requests  274 274 784  Reading: 0 Writing: 1 Waiting: 19