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High performance ping tool [Fork of github.com/schweikert/fping]
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Erik Auerswald 97b7484350 test error when binding to wrong local address 
Test "fping -S" with both IPv4 and IPv6 addresses not configured
on local interfaces using addresses reserved for documentation.
Check the fping error message, but accept any system generated
additional information.  This additional information differs
between operation systems.
 		7 months ago
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README.md

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fping

fping is a program to send ICMP echo probes to network hosts, similar to ping, but much better performing when pinging multiple hosts. fping has a long long story: Roland Schemers did publish a first version of it in 1992 and it has established itself since then as a standard tool.

Current maintainer:
David Schweikert <david@schweikert.ch>

Website:
https://fping.org/

Mailing-list:
https://groups.google.com/group/fping-users

Installation

If you want to install fping from source, proceed as follows:

  1. Run ./autogen.sh (only if you got the source from Github).
  2. Run ./configure with the correct arguments. (see: ./configure --help)
  3. Run make; make install.
  4. Make fping either setuid, or, if under Linux: sudo setcap cap_net_raw,cap_net_admin+ep fping

If you can't run fping as root or can't use the cap_net_raw capability, you can also run fping in unprivileged mode. This works on MacOS and also on Linux, provided that your GID is included in the range defined in /proc/sys/net/ipv4/ping_group_range. This is particularly useful for running fping in rootless / unprivileged containers. The --fwmark option needs root or cap_net_admin. setuid will not work for --fwmark.

Usage

Have a look at the fping(8) manual page for usage help. (fping -h will also give a minimal help output.)

Credits