start.sh

#!/bin/bash
# Hoặc #!/bin/sh nếu bạn dùng shell cơ bản
echo "nameserver 8.8.8.8" > /tmp/resolv.conf

echo "nameserver 1.1.1.1" >> /tmp/resolv.conf

sudo sh -c 'echo -e "nameserver 1.1.1.1\nnameserver 8.8.8.8" > /etc/resolv.conf'

cat /etc/resolv.conf

npm start