Ubuntu 25.10 disable systemd-resolved’s stub listener

# Create directory
sudo mkdir -p /etc/systemd/resolved.conf.d/
# Set permissions
sudo chmod 755 /etc/systemd/resolved.conf.d/
# Disable
printf "[Resolve]\nDNSStubListener=no\n" | sudo tee /etc/systemd/resolved.conf.d/noresolved.conf
# Restart systemd-resolved
sudo systemctl restart systemd-resolved.service
# Test
cat /etc/resolv.conf

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