备份yum源配置 mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup 下载阿里云yum源到指定配置文件 wget -O /etc/yum.repos.d/CentOS-Base.repo htt
安装ipset #Debian/Ubuntu系统 apt-get -y install ipset #CentOS系统 yum -y install ipset CentOS 7还需要关闭firewall防火墙: systemctl stop firewalld.service sys