Article directory
- fping
-
- Additional information
- grammar
-
- Options
- parameter
- Example
- Learn `python` from scratch
fping
Check if the host exists
Supplementary instructions
The fping command is similar to ping, but more powerful than ping. Unlike ping which needs to wait for a certain host to connect to timeout or send back feedback information, fping immediately sends a data packet to the next host after sending a data packet to one host. Achieve simultaneous pinging of multiple hosts. At the same time, fping can also specify the range of the number of hosts to be pinged on the command line.
Grammar
fping [options] [parameters]
Options
- -a: Display live hosts
- -b: Set the size of ping packets (default is 56)
- -c: Set the number of pings for each target (default is 1)
- -f: Get the target list from a file (cannot be used with the -g option)
- -l: Send pings in a loop
- -g: Generate a target list by specifying the start and end addresses, which can be network segments
- -u: Show unreachable targets
Parameters
Target: The host address to ping.
Examples
Install fping command:
# Install epel source first yum install epel* -y #Install fping package yum install fping -y
Selectively ping specified IP:
$ fping 192.168.0.1 192.168.0.125 192.168.0.126 2>/dev/null 192.168.0.1 is alive 192.168.0.125 is alive 192.168.0.126 is unreachable
Ping the entire network segment:
$ fping -g 192.168.0.0/24 2>/dev/null 192.168.0.1 is alive 192.168.0.103 is alive ... 192.168.0.253 is unreachable 192.168.0.254 is unreachable
Ping the entire network segment and only display surviving hosts:
$ fping -ag 192.168.0.0/24 2>/dev/null 192.168.0.1 192.168.0.103 ...
Ping a certain IP:
$ fping -ag 192.168.0.5 192.168.0.130 2>/dev/null 192.168.0.103 ... 192.168.0.125 192.168.0.130
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