fping:tldr:8f612

fping: List unreachable hosts within a subnet generated from a netmask.

fping

$ fping -u -g 192.168.1.0/24

try on your machine

The command "fping -u -g 192.168.1.0/24" is used to perform a network ping sweep, specifically targeting a range of IP addresses.

Here's a breakdown of the command:

"fping" is the name of the command-line tool being executed. It is a popular utility used to send ICMP echo request packets (pings) to network hosts, allowing users to check the reachability and response time of those hosts.
"-u" is an optional flag used with fping. It instructs fping to only display hosts that are unreachable. This means that it will only show responses indicating that a particular IP address did not respond to the ping. If this flag is not used, fping will display both reachable and unreachable hosts.
"-g" is another optional flag used with fping. It is used to specify a target IP address range in CIDR notation. In this specific case, the IP range specified is "192.168.1.0/24". This means that the command will attempt to ping all IP addresses from 192.168.1.0 to 192.168.1.255, excluding the network address and broadcast address.

Overall, the command "fping -u -g 192.168.1.0/24" will send ICMP echo requests to each IP within the specified range and provide a list of those IP addresses that did not respond (i.e., unreachable hosts).

This explanation was created by an AI. In most cases those are correct. But please always be careful and never run a command you are not sure if it is safe.

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