使用yum安装nginx

centos7系统库中默认是没有nginx的rpm包的
可以使用命令查看是否存在nginx包
rpm -qa | grep nginx ＃[搜索指定rpm包是否安装]–all搜索httpd

 [[email protected] ~]# rpm -qa|grep nginx
 nginx-1.14.2-1.el7_4.ngx.x86_64
 nginx-release-centos-7-0.el7.ngx.noarch
 [[email protected] ~]# 

如果没有可以自己下载

#rpm -Uvh http://nginx.org/packages/centos/7/noarch/RPMS/nginx-release-centos-7-0.el7.ngx.noarch.rpm

(2)使用下面命令安装nginx

#yum install nginx

(3)启动Nginx
service nginx start 或systemctl start nginx.service

可参考的链接：Nginx官网下载安装包-手动安装及配置自启动