# 命令行发送UDP请求 sudo yum install nc echo "你的消息内容" | nc -u 目标IP地址 端口号 # 创建软连接 ln -s /usr/bin/
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yum -y update # 安装netstat yum install net-tools -y # 文件上传下载 yum -y install lrzsz yum install gcc
ping mi.com yum update yum instll wget wget https://dl.fedoraproject.org/pub/epel/epel-release-lates