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How to solve the problem that device eth0 does not exist under centos?
1. Create a newifcfg-eth0file in the/etc/sysconfig/network-scripts/directory;
2. Correctly set theDEVICE, BOOTPROTO, ONBOOT, IPADDR, GATEWAY, DNS1, DOMAIN, NETMASK, NETWORK, NAME, etc. ofifcfg-eth0,
For example:
DEVICE=eth0 物理设备名称 IPADDR=192.168.1.x IP地址 NETMASK=255.255.255.0 子网掩码 NETWORK=192.168.1.0 指定网络，通过IP地址和子网掩码自动计算得到 GATEWAY=192.168.1.1 网关地址 BROADCAST=192.168.1.255 广播地址，通过IP地址和子网掩码自动计算得到 ONBOOT=[yes|no] 引导时是否激活设备 USERCTL=[yes|no] 非ROOT用户是否可以控制该设备 BOOTPROTO=[none|static|bootp|dhcp] 引导时不使用协议|静态分配|BOOTP协议|dhcp协议 HWADDR=00:13:D3:27:9F:80 MAC地址 NAME=eth0 名称
3. After the above settings, it can be successful under normal circumstances. If there are still problems, add # at the end of the file/etc/rc.d/rc.local##ifup eth0 (/etc/rc.localscript is executed after all other initialization scripts have been executed).
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