sudo systemctl disable --now systemd-resolved.service
sudo systemctl disable --now resolvconf.service
sudo rm /etc/resolv.conf
sudo touch /etc/resolv.conf
echo "nameserver 1.1.1.1" | sudo tee /etc/resolv.conf
sudo systemctl stop snapd
sudo apt remove --purge -y snapd
rm -rf ~/snap/
sudo rm -rf /var/cache/snapd/
sudo mkdir -p /etc/systemd/resolved.conf.d/
sudo touch /etc/systemd/resolved.conf.d/disable-stub.conf
printf "[Resolve]\nDNSStubListener=no\n" | sudo tee /etc/systemd/resolved.conf.d/disable-stub.conf
硬幹：不推薦(容易起死復活)
sudo systemctl disable --now systemd-resolved.servicesudo systemctl disable --now resolvconf.servicesudo rm /etc/resolv.confsudo touch /etc/resolv.confecho "nameserver 1.1.1.1" | sudo tee /etc/resolv.confsudo systemctl stop snapdsudo apt remove --purge -y snapdrm -rf ~/snap/sudo rm -rf /var/cache/snapd/How to remove snapd from Ubuntu
sudo mkdir -p /etc/systemd/resolved.conf.d/sudo touch /etc/systemd/resolved.conf.d/disable-stub.confprintf "[Resolve]\nDNSStubListener=no\n" | sudo tee /etc/systemd/resolved.conf.d/disable-stub.confresolvconf 目前是永不都太到，主要還是避免 systemd-resolved 只寫一個 nameserver 127.0.0.1 的 /etc/resolve.conf 然後爆炸
2022/08/07 紀錄，用這個方法關掉之後，不曉得是系統更新還是怎樣，他又回來了