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

DEVICE="eth0"
BOOTPROTO="none"
HWADDR="BC:AE:C5:11:4C:D9"
NM_CONTROLLED="yes"
ONBOOT="yes"
IPADDR=192.168.2.199
PREFIX=24
GATEWAY=192.168.2.1
TYPE="Ethernet"
UUID="cb660fe2-f744-4395-a220-87fcd00d57ec"

.設置靜態(tài)IP地址.
     (1).命令行設置(該方式只是臨時設置,系統(tǒng)重啟后失效)
            [1].設置IP和掩碼
                    ifconfig 接口名(如eth0)  IP地址 netmask 子網掩碼
             [2].設置網關
                    route add default gw 默認網關
             [3].設置DNS服務器地址
                    echo "nameserver DNS服務器地址">/etc/resolv.conf
             實例:假設設置eth0的IP:192.168.1.100,DNS:192.168.1.12
                     ifconfig eth0 192.168.1.100 netmask 255.255.255.0
                    route add default gw 192.168.1.1
                    echo "nameserver=192.168.1.12">/etc/resolv.conf
      (2).修改文件來實現配置網絡(需要重啟網絡接口)
            [1].修改IP地址,文件:/etc/sysconfig/network-scripts/ifcfg-接口名
                  這里假設網絡接口名為eth0.
                   cat<<EOF>/etc/sysconfig/network-scripts/ifcfg-eth0
                         DEVICE=eth0  (注:這里填的是網絡接口名)
                         BOOTPROTO=none
                         ONBOOT=yes (注:是否隨系統(tǒng)啟動)
                          IPADDR=192.168.1.100(注:這里填寫的是IP地址)
                          PREFIX=24 (注:這里填寫的是掩碼的長度)
                          GATEWAY=192.168.1.1( 注:這里寫的是網關)
                      EOF
               [2].修改DNS
                         echo "nameserver DNS服務器地址">/etc/resolv.conf
               [3].重啟網絡接口(假設為eth0)
                         ifup eth0(注:這里寫的是接口名)