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安装CentOS 7后,默认的网卡名字不是 「eth0」,由于在安装阿里云的Logtail客户端,其默认读取 「eth0」网卡的IP地址,因此需要更改下网卡名。
下面的具体步骤:(假设网卡名字是:eth123456)
步骤1: 配置创建并配置 ifcfg-eth0 文件
[root@localhost ~]# ifconfig eth123456: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1280 inet 192.168.0.102 netmask 255.255.255.0 broadcast 192.168.0.255 inet6 fe80::77a1:9964:3a77:8ab9 prefixlen 64 scopeid 0x20<link> ether d8:9e:f3:10:7a:11 txqueuelen 1000 (Ethernet) RX packets 34180 bytes 4149267 (3.9 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 32703 bytes 20801400 (19.8 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 device interrupt 16 memory 0xf7e80000-f7ea0000 [root@localhost ~]# cd /etc/sysconfig/network-scripts/ [root@localhost network-scripts]# mv ifcfg-eth123456 ifcfg-eth0 [root@localhost network-scripts]# vi ifcfg-eth0 #修改下面两个Key NAME="eth0" DEVICE="eth0"
步骤2: 修改grub配置并更新内核参数
#修改配置 [root@localhost ~]# vi /etc/sysconfig/grub #修改这个Key:增加 net.ifnames=0 biosdevname=0 GRUB_CMDLINE_LINUX="crashkernel=auto rd.lvm.lv=centos/root net.ifnames=0 biosdevname=0 rd.lvm.lv=centos/swap rhgb quiet" #更新内核参数 [root@localhost ~]# grub2-mkconfig -o /boot/grub2/grub.cfg
步骤3: 添加udev的规则
[root@localhost ~]# vi /usr/lib/udev/rules.d/60-net.rules #将第一行注释掉 #ACTION=="add", SUBSYSTEM=="net", DRIVERS=="?*", ATTR{type}=="1", PROGRAM="/lib/udev/rename_device", RESULT=="?*", NAME="$result" ACTION=="add", SUBSYSTEM=="net", DRIVERS=="?*", ATTR{type}=="1", ATTR{address}=="d8:9e:*:10:*11", NAME="eth0"
配置完成之后,重启服务器即可。
备注:
The text was updated successfully, but these errors were encountered:
根据 RHEL 7 《联网指南》中的描述,并不需要这么麻烦,只需要修改 ifcfg 配置文件就行了,修改或者新增 HWADDR 和 DEVICE 这 2 个选项,HWADDR 的值是你需要修改名称的网卡 MAC 地址, DEVICE 的值是你想要修改的新名称。注意,ifcfg 的文件名和 NAME 和网卡名称都没有关系,都不用改。参考链接如下(中英只是章节不同,内容一样): RHEL 7 Networking Guide : 3.5. CONFIGURING IP NETWORKING WITH IFCFG FILES 11.8. CONTROLLING THE SELECTION OF NETWORK DEVICE NAMES RHEL 7 联网指南: 2.4.1. 使用 ifcfg 文件配置网络接口 8.2. 了解设备重命名过程
HWADDR
DEVICE
NAME
关于 ifcfg 文件中的配置项,RHEL 7 中并没有很详细的文档,只能看 RHEL 6 的 《Deployment Guide》11.2. INTERFACE CONFIGURATION FILES 。
警告:DEVICE 的值一定要正确,否则配置不生效,网卡不会上电。
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@gotnix 感谢分享!
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安装CentOS 7后,默认的网卡名字不是 「eth0」,由于在安装阿里云的Logtail客户端,其默认读取 「eth0」网卡的IP地址,因此需要更改下网卡名。
设置步骤
下面的具体步骤:(假设网卡名字是:eth123456)
步骤1: 配置创建并配置 ifcfg-eth0 文件
步骤2: 修改grub配置并更新内核参数
步骤3: 添加udev的规则
配置完成之后,重启服务器即可。
备注:
参考链接
The text was updated successfully, but these errors were encountered: