网络配置文件：/etc/sysconfig/network-scripts/ifcfg-eth0
DNS配置文件：/etc/tesolve.conf
用户信息：/ect/passwd
用户密码：/etc/shadow
组配置文件: /etc/group .
配置yum :删除/etc/yum.repos.d/rhel-source.repo,自己写/etc/yum.repos.ddhcpd.conf.sample
dhcp配置文件路径: /etc/dhcp/dhcpd.conf
服务的启停脚本文件: /etc/rc.d/init.d/
日志服务配置文件: /etc/rsyslog.conf
dhcp的配置文件: /etc/dhcp/dhcpd.conf
设定Linux的运行等级: /etc/inittab
关闭linux防火墙: /etc/selinux/config--将selinux 由enforcing 改为disabled.
启动内核模块: /etc/modules.conf