fping 3 README
--------------
This is a BETA build, please use at your own risk. Implements initial support for json datatype output.
Known problem: running fping on a down host without -j 1 returns malformed json.
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.
Maintainer of this fork:
Paul S. <contact+github(at)winterei(dot)se>
Website:
http://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 ./configure with the correct arguments
(see: ./configure --help)
2. Run make; make install
3. Make fping either setuid, or, if under Linux:
sudo setcap cap_net_raw+ep fping
4. Have a look at the fping(8) manual for usage help
(fping -h will also give a minimal help output)
IPv6 support
------------
You can can compile fping with support for IPv6 addresses. A separate binary
is used for that, called fping6. To build it, use ./configure --enable-ipv6
(possibly combined with --enable-ipv4 to also build fping for IPv4). E.g.:
# ./configure --prefix=/usr/local --enable-ipv4 --enable-ipv6
# make
# make install
# sudo setcap cap_net_raw+ep /usr/local/bin/fping*
Credits
-------
Original author: Roland Schemers (schemers@stanford.edu)
Previous maintainer: RL "Bob" Morgan (morgan@stanford.edu)
Initial IPv6 Support: Jeroen Massar (jeroen@unfix.org / jeroen@ipng.nl)
Other contributors: see ChangeLog