# vi /etc/yum.repos.d/nginx.repo
[nginx]
name=nginx repo
#baseurl=http://nginx.org/packages/centos/$releasever/$basearch/
baseurl=http://nginx.org/packages/mainline/centos/$releasever/$basearch/
gpgcheck=0
enabled=0
# yum --enablerepo=nginx install -y nginx
# systemctl start nginx
# systemctl enable nginx
以上