---

for i in {1..254}; do
  (nc -z -G 1 192.168.88.$i 80 2>/dev/null && echo "HTTP  -> 192.168.88.$i") &
  (nc -z -G 1 192.168.88.$i 443 2>/dev/null && echo "HTTPS -> 192.168.88.$i") &
done
wait