1.查看网卡信息
ifconfig
2.修改ip配置文件
vi /etc/sysconfig/network-scripts/ifcfg-eth0
3.配置域名
(1)临时
hostname hadoop001
(2)永久
vi /etc/sysconfig/network
4.网络映射配置
vi /etc/hosts
ifconfig
vi /etc/sysconfig/network-scripts/ifcfg-eth0
hostname hadoop001
vi /etc/sysconfig/network
vi /etc/hosts