linux IP的设置 修改DNS 解析 hosts生效

修改IP地址

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vim /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
BOOTPROTO=static
IPADDR=192.168.42.11
NETMASK=255.255.255.0
GATEWAY=192.168.42.1
ONBOOT=yes

修改DNS 解析

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127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.42.21   hadoop1

hosts生效

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sudo /etc/init.d/networking restart