技术文档（4）-- Linux配置网卡

[root@elk opt]# vi /etc/sysconfig/network-scripts/ifcfg-enp0s3

编辑信息如下：

DEVICE=eth0s3
HWADDR=08:00:27:c6:1a:92
TYPE=Ethernet
#UUID=ba2acafb-7530-4ca7-9425-52fa227b172d
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=static
IPADDR=192.168.56.105
GATEWAY=192.168.1.1
NETMASK=255.255.255.0
DNS1=192.168.1.1
IPV6INIT=no
USERCTL=no

其中HWADDR 地址通过 ip addr 查看：

编辑resolv.conf

增加 nameserver 192.168.1.1

 

重启网卡：

systemctl stop NetworkManager
systemctl disable NetworkManager
systemctl restart network

如果重启网卡报了：Failed to start LSB: Bring up/down networking

参考资料：http://blog.51cto.com/11863547/1905929

修改/etc/sysconfig/grub，添加net.ifnames=0 biosdevname=0

[root@centos7 ~]# cat  /etc/sysconfig/grub 
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="crashkernel=128M rd.lvm.lv=centos/root rhgb quiet net.ifnames=0 biosdevname=0"
GRUB_DISABLE_RECOVERY="true"
[root@centos7 ~]#

然后生产菜单：

[root@centos7 ~]# grub2-mkconfig -o /boot/grub2/grub.cfg 
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-3.10.0-327.el7.x86_64
Found initrd image: /boot/initramfs-3.10.0-327.el7.x86_64.img
Found linux image: /boot/vmlinuz-0-rescue-8058723e5e754d3aabc51842d9108e3b
Found initrd image: /boot/initramfs-0-rescue-8058723e5e754d3aabc51842d9108e3b.img
done
[root@centos7 ~]#

重启虚机，可以了