CentOS8和Almalinux8默认yum版本1.14，我们需要更高版本Nginx方法如下
vi /etc/yum.repos.d/nginx.repo添加下面内容：
[nginx-stable]
name=nginx stable repo
baseurl=http://nginx.org/packages/centos/$releasever/$basearch/
gpgcheck=1
enabled=1
gpgkey=https://nginx.org/keys/nginx_signing.key
module_hotfixes=true
[nginx-mainline]
name=nginx mainline repo
baseurl=http://nginx.org/packages/mainline/centos/$releasever/$basearch/
gpgcheck=1
enabled=0
gpgkey=https://nginx.org/keys/nginx_signing.key
module_hotfixes=true保存退出后执行 yum info nginx 查看Nginx 获取到版本信息 如图
yum安装
yum install nginx -y设置开机启动
systemctl enable nginxNginx常用命令
systemctl start nginx #启动 Nginx
systemctl stop nginx #停止 Nginx
systemctl reload nginx #重启 Nginx