uname -a 看主机位数ip a 看IP地址vi /etc/sysconfig/network 改主机的名字vi /etc/hosts 改映射关系vi /etc/sysconfig/network-scripts/ifcfg-eth0 改网卡配置vi /etc/profile 改环境变量配置scp -r /cloud/hadoop-2.2.0 root@192.168.231.139:/cloud/hadoop-2.2.0 传递文件