设置 sudoers
su -
chmod 777 /etc/sudoers
chmod 444
更改/etc/sysconfig/network
/etc/resolve.conf
/etc/sysconfig/network-scripts/ifcfg-eth0
/etc/init.d/network restart
yum install lrzsz
yum install lrzsz zlib zlib-devel sqlite sqlite-devel
yum install openssl openssl-devel
yum group install 'Development Tools'
install python 2.6.5 from tar.gz with configure parameters