修改/etc/systemd/resolved.conf
[Resolve]
DNS=8.8.8.8
FallbackDNS=223.5.5.5

Domains=

LLMNR=no

MulticastDNS=no

DNSSEC=no

DNSOverTLS=no

Cache=no-negative

DNSStubListener=yes

ReadEtcHosts=yes

我们添加DNS=8.8.8.8，FallbackDNS=223.5.5.5作为我们的DNS服务器。

重启systemd-resolved服务

sudo systemctl daemon-reload
sudo systemctl restart systemd-resolved.service

将/etc/resolv.conf链接到/run/systemd/resolve/resolv.conf

sudo mv /etc/resolv.conf /etc/resolv.conf.bak
sudo ln -s /run/systemd/resolve/resolv.conf /etc/resolv.conf

使用Dig命令验证DNS的更改

dig netflix.com