![]() This is the basic technique used in Ping of Death attacks. To send a ping with 128 bytes, type the following: # ping -s 100 server01 The header is always 28 bytes, so add on the amount you want plus 28 bytes to get the total size. You can also change the size of the ping packet payload. This displays the hosts that are currently up, thought it's not as effective as a simple Nmap scan. There are several miscellaneous ping commands you can use for various tests.įor example, what if you don't have Nmap installed but need to see what hosts are up? Add the -b option to run a ping broadcast to an entire subnet.
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