Ubuntu的网络配置

Ubuntu网络配置

网卡名称:

默认ubuntu的网卡名称和Cent OS 7类似,如:ens33,ens38等

修改网卡名称为传统命名方式:

修改配置文件为下面形式
vi /etc/default/grub
GRUB_CMDLINE_LINUX="net.ifnames=0"

生效新的grub.cfg文件

grub-mkconfig -o /boot/grub/grub.cfg :Centos里面是grub2

重启reboot

官网文档:

https://help.ubuntu.com/lts/serverguide/network-configuration.html.zh-CN

配置自动获取IP

cat /etc/netplan/01-netcfg.yaml

network:
  version: 2
  renderer:networkd
  ethernets:
    ens33:
      dhcp4: yes

修改网卡配置文件后需执行命令生效:netplan apply

配置静态IP:

cat /etc/netplan/01-netcfg.yaml

network:
  version: 2
  renderer: networkd
  ethernets:
    eth0:
      addresses:
        - 192.168.6.10/24
        - 10.10.10.10/24
      gateway4: 192.168.6.1
      nameservers:
          search: [mydomain, otherdomain]
          addresses: [223.5.5.5, 8.8.8.8, 1.1.1.1]

查看ip和gateway

ip addr
route -n

查看DNS

ls -l /etc/resolv.conf
lrwxrwxrwx 1 root root 39 Dec 12 11:36 /etc/resolv.conf -> ../run/systemd/resolve/stub-resolv.conf

systemd-resolve –status

修改主机名

hostnamectl set-hostname ubuntu1804

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转载自blog.51cto.com/14228129/2374780