常看(关于网络配置和添加用户)

vi /etc/sysconfig/network

vi /etc/hosts

vi /etc/sysconfig/network-scripts/ifcfg-eth0

vi /etc/resolv.conf

rm -rf /etc/udev/rules.d/70-persistent-net.rules

# sudo reboot

vi /etc/inittab

adduser hadoop//添加一个名为tommy的用户

passwd hadoop//修改密码

/etc/sudoers

root    ALL=(ALL)     ALL

hadoop ALL=(ALL)     ALL

yum -y groupremove "X Window System"

yum -y groupremove "Desktop"

yum -y groupremove "KDE Desktop"