Atur DNS publik yang andal
# Edit resolved config
sudo nano /etc/systemd/resolved.conf
Di bawah [Resolve] → tambahkan atau hapus tanda komentar:
DNS=8.8.8.8 8.8.4.4
FallbackDNS=1.1.1.1 1.0.0.1
Lalu restart resolver-nya:
sudo systemctl restart systemd-resolved