#安装yum工具包
sudo yum install yum-utils
#构建链接
vim /etc/yum.repos.d/nginx.repo
# i 进入insert状态
# 把下面内容复制粘贴进去
[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
#esc 退出编辑状态并输入wq保存退出
wq
sudo yum-config-manager --enable nginx-mainline
# 指定版本安装
sudo yum install nginx-1.17.1
#检查版本
nginx -v
参考资料:nginx官网