安裝Linux後首次輸入ifconfig後IP地址顯示為127.0.0.1

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原文地址:https://blog.csdn.net/qq_31820885/article/details/78017864

在linux系統中輸入命令:

vi /etc/sysconfig/network-scripts/ifcfg-eth0 ,然後顯示如下結果

將其中的ONBOOT=no改為yes,然後輸入 :wq,敲擊enter儲存並退出.

最後輸入命令:service network restart(重啟服務命令)

重啟伺服器,會出現正在配置IP的提示,待自動配置成功後,

輸入命令ifconfig即可.

如果你是克隆出來的CentOs ,那麼你可能碰到,Device eth0 does not seem to be present錯誤,那麼你可以按照這個地址操作

https://www.linuxidc.com/Linux/2012-12/76248.htm

 在VMware裡克隆出來的CentOS Linux。。

ifconfig…沒有看到eth0.。然後重啟網絡卡又報下面錯誤。

故障現象:

service network restart
Shutting down loopback insterface:                                                                                                     [  OK  ]
Bringing up loopback insterface:                                                                                                          [  OK  ]
Bringing up interface eth0:  Device eth0 does not seem to be present,delaying initialization.                    [FAILED]

CentOS Linux解決Device eth0 does not seem to be present

解決辦法:

首先,開啟/etc/udev/rules.d/70-persistent-net.rules內容如下面例子所示:

# vi /etc/udev/rules.d/70-persistent-net.rules
# This file was automatically generated by the /lib/udev/write_net_rules
# program, run by the persistent-net-generator.rules rules file.
#
# You can modify it, as long as you keep each rule on a single
# line, and change only the value of the NAME= key.
# PCI device 0x1022:0x2000 (pcnet32)
SUBSYSTEM==”net”, ACTION==”add”, DRIVERS==”?*”, ATTR{address}==”00:0c:29:8f:89:9
7″, ATTR{type}==”1″, KERNEL==”eth*”, NAME=”eth0″
# PCI device 0x1022:0x2000 (pcnet32)
SUBSYSTEM==”net”, ACTION==”add”, DRIVERS==”?*”, ATTR{address}==”00:0c:29:50:bd:1
7″, ATTR{type}==”1″, KERNEL==”eth*”, NAME=”eth1″

記錄下,eth1網絡卡的mac地址00:0c:29:50:bd:17

接下來,開啟/etc/sysconfig/network-scripts/ifcfg-eth0

# vi /etc/sysconfig/network-scripts/ifcfg-eth0

將 DEVICE=”eth0″  改成  DEVICE=”eth1″  ,
將 HWADDR=”00:0c:29:8f:89:97″ 改成上面的mac地址  HWADDR=”00:0c:29:50:bd:17″

最後,重啟網路

# service network restart
或者

# /etc/init.d/network restart

正常了。

 在VMware裡克隆出來的CentOS Linux。。

ifconfig…沒有看到eth0.。然後重啟網絡卡又報下面錯誤。

故障現象:

service network restart
Shutting down loopback insterface:                                                                                                     [  OK  ]
Bringing up loopback insterface:                                                                                                          [  OK  ]
Bringing up interface eth0:  Device eth0 does not seem to be present,delaying initialization.                    [FAILED]

CentOS Linux解決Device eth0 does not seem to be present

解決辦法:

首先,開啟/etc/udev/rules.d/70-persistent-net.rules內容如下面例子所示:

# vi /etc/udev/rules.d/70-persistent-net.rules
# This file was automatically generated by the /lib/udev/write_net_rules
# program, run by the persistent-net-generator.rules rules file.
#
# You can modify it, as long as you keep each rule on a single
# line, and change only the value of the NAME= key.
# PCI device 0x1022:0x2000 (pcnet32)
SUBSYSTEM==”net”, ACTION==”add”, DRIVERS==”?*”, ATTR{address}==”00:0c:29:8f:89:9
7″, ATTR{type}==”1″, KERNEL==”eth*”, NAME=”eth0″
# PCI device 0x1022:0x2000 (pcnet32)
SUBSYSTEM==”net”, ACTION==”add”, DRIVERS==”?*”, ATTR{address}==”00:0c:29:50:bd:1
7″, ATTR{type}==”1″, KERNEL==”eth*”, NAME=”eth1″

記錄下,eth1網絡卡的mac地址00:0c:29:50:bd:17

接下來,開啟/etc/sysconfig/network-scripts/ifcfg-eth0

# vi /etc/sysconfig/network-scripts/ifcfg-eth0

將 DEVICE=”eth0″  改成  DEVICE=”eth1″  ,
將 HWADDR=”00:0c:29:8f:89:97″ 改成上面的mac地址  HWADDR=”00:0c:29:50:bd:17″

最後,重啟網路

# service network restart
或者

# /etc/init.d/network restart

正常了。

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