As the title states. I was trying to ping a bunch of servers whose existence I am not sure of. There are 10 servers in all. Two of them got ping timed out while the other eight have could not find host. The 2 timed out ones show an IP which times out too on pinging. I did a quick nslookup on these servers and they did not have any DNS entries. What is the difference between "could not find host" and "timed out" when pinging fails?