Oracle-Ubuntu 24.04.1修改DNS

查看配置文件

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ls /run/netplan/

备份配置文件

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cp /run/netplan/enp0s6.yaml /run/netplan/enp0s6.yaml.bak

修改配置文件

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vim /run/netplan/enp0s6.yaml

配置文件修改为:

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nameservers:
addresses: ["1.1.1.1"]
addresses: ["8.8.8.8"]

编辑输入:i
退回普通模式:按 Esc 键进入普通模式
保存并退出输入:

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:wq

强制保存并退出输入:

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:wq!

AWS-Ubuntu 22.04.5修改DNS

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cp /etc/systemd/resolved.conf /etc/systemd/resolved.conf.bak
cp /etc/netplan/50-cloud-init.yaml /etc/netplan/50-cloud-init.yaml.bak

resolved.conf

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DNS=8.8.8.8 8.8.4.4
FallbackDNS=1.1.1.1 1.0.0.1

50-cloud-init.yaml

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network:
version: 2
ethernets:
ens5:
dhcp4: true
dhcp6: true
dhcp4-overrides:
use-dns: false
dhcp6-overrides:
use-dns: false
nameservers:
addresses: [8.8.8.8, 8.8.4.4]
match:
macaddress: 06:06:b6:44:b5:3b
set-name: ens5

重启命令

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sudo netplan apply
sudo systemctl restart systemd-resolved
resolvectl status