Bringing up interface eth0: Error:Unknown connection:

CentOS网络配置

通过vim 修改CentOS /etc/sysconfig/network-scripts/ifcfg-eth0 网卡配置文件,配置网卡静态IP。

修改前文件内容如下:

在修改完后文件内容如下:

文件修改完,按ESC返回默认模式,输入:x保存文件后,输入如下命令重启network服务

出现如下异常错误:

提示错误的经分析是,在修改ifcfg-eth0文件中的BOOTPROTO=static输入错误导致。重新输入正确后,启动正常。

总结:

1、如果,是在VMWare下启动不成功会导致ping不通。

2、每台机器的HWADDR(MAC)地址是唯一的,一定不要改。

3、ONBOOT选项一定要修改为ONBOOT=yes,否则网卡不up(激活)配置无法生效

4、静态IP配置BOOTPROTO=static;动态获取IP配置:BOOTPROTO=DHCP。

5、DNS配置:DNS1=xxx.xxx.xxx.xxx;DNS2=xxx.xxx.xxx.xxx

重要的是输入内容是一定要仔细检查错误,如果出现异常错误,可以仔细检查会有收获。

时间: 2024-08-09 13:41:36

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