linux网络配置

1.因为公司ip和mac地址是绑定的，所以要修改mac

#关掉网卡
[root@node2 ~]# ifdown eth0
#修改MAC地址
[root@node2 ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0 
DEVICE="eth0"
BOOTPROTO="static"
#HWADDR="00:0C:29:7C:08:AE"
MACADDR="00:02:23:45:43:AE"
IPV6INIT="yes"
NM_CONTROLLED="yes"
ONBOOT="yes"
TYPE="Ethernet"
UUID="79026818-4eb8-4dcd-9abe-3b0fc0ffd21b"
IPADDR=192.168.222.11
NETMASK=255.255.255.0
GATEWAY=192.168.222.2
DNS1=114.114.114.114
#启动网卡
[root@node2 ~]# ifup eth0
#验证
[root@node2 ~]# ifconfig eth0
eth0      Link encap:Ethernet  HWaddr 00:02:23:45:43:AE  
          inet addr:192.168.222.11  Bcast:192.168.222.255  Mask:255.255.255.0
          inet6 addr: fe80::202:23ff:fe45:43ae/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:852 errors:0 dropped:0 overruns:0 frame:0
          TX packets:529 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:78255 (76.4 KiB)  TX bytes:98733 (96.4 KiB)