sudo vi /etc/systemd/resolved.conf rest
[Resolve] DNS=114.114.114.114 223.5.5.5 #FallbackDNS= #Domains= #LLMNR=no #MulticastDNS=no #DNSSEC=no #Cache=yes #DNSStubListener=yes ~ast
修改完,sudo systemctl restart systemd-resolved.serviceList