fping.pod (fping-5.0) | : | fping.pod (fping-5.1) | ||
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skipping to change at line 84 | skipping to change at line 84 | |||
designed for automated response-time statistics gathering. For example: | designed for automated response-time statistics gathering. For example: | |||
$ fping -C 5 -q somehost | $ fping -C 5 -q somehost | |||
somehost : 91.7 37.0 29.2 - 36.8 | somehost : 91.7 37.0 29.2 - 36.8 | |||
shows the response time in milliseconds for each of the five requests, with the | shows the response time in milliseconds for each of the five requests, with the | |||
C<-> indicating that no response was received to the fourth request. | C<-> indicating that no response was received to the fourth request. | |||
=item B<-d>, B<--rdns> | =item B<-d>, B<--rdns> | |||
Use DNS to lookup address of return ping packet. This allows you to give fping | Use DNS to lookup address of ping target. This allows you to give fping | |||
a list of IP addresses as input and print hostnames in the output. This is simil ar | a list of IP addresses as input and print hostnames in the output. This is simil ar | |||
to option B<-n>/B<--name>, but will force a reverse-DNS lookup even if you give | to option B<-n>/B<--name>, but will force a reverse-DNS lookup even if you give | |||
hostnames as target (NAME->IP->NAME). | hostnames as target (NAME->IP->NAME). | |||
=item B<-D>, B<--timestamp> | =item B<-D>, B<--timestamp> | |||
Add Unix timestamps in front of output lines generated with in looping or counti ng | Add Unix timestamps in front of output lines generated with in looping or counti ng | |||
modes (B<-l>, B<-c>, or B<-C>). | modes (B<-l>, B<-c>, or B<-C>). | |||
=item B<-e>, B<--elapsed> | =item B<-e>, B<--elapsed> | |||
skipping to change at line 153 | skipping to change at line 153 | |||
Send pings to each of a target host's multiple IP addresses (use of option '-A' | Send pings to each of a target host's multiple IP addresses (use of option '-A' | |||
is recommended). | is recommended). | |||
=item B<-M>, B<--dontfrag> | =item B<-M>, B<--dontfrag> | |||
Set the "Don't Fragment" bit in the IP header (used to determine/test the MTU). | Set the "Don't Fragment" bit in the IP header (used to determine/test the MTU). | |||
=item B<-n>, B<--name> | =item B<-n>, B<--name> | |||
If targets are specified as IP addresses, do a reverse-DNS lookup on them | If targets are specified as IP addresses, do a reverse-DNS lookup on them | |||
to | to print hostnames in the output. | |||
=item B<-N>, B<--netdata> | =item B<-N>, B<--netdata> | |||
Format output for netdata (-l -Q are required). See: L<http://my-netdata.io/> | Format output for netdata (-l -Q are required). See: L<http://my-netdata.io/> | |||
=item B<-o>, B<--outage> | =item B<-o>, B<--outage> | |||
Calculate "outage time" based on the number of lost pings and the interval used (useful for network convergence tests). | Calculate "outage time" based on the number of lost pings and the interval used (useful for network convergence tests). | |||
=item B<-O>, B<--tos>=I<N> | =item B<-O>, B<--tos>=I<N> | |||
skipping to change at line 181 | skipping to change at line 181 | |||
the time in milliseconds that B<fping> waits between successive packets to | the time in milliseconds that B<fping> waits between successive packets to | |||
an individual target. Default is 1000 and minimum is 10. | an individual target. Default is 1000 and minimum is 10. | |||
=item B<-q>, B<--quiet> | =item B<-q>, B<--quiet> | |||
Quiet. Don't show per-probe results, but only the final summary. Also don't | Quiet. Don't show per-probe results, but only the final summary. Also don't | |||
show ICMP error messages. | show ICMP error messages. | |||
=item B<-Q>, B<--squiet>=I<SECS> | =item B<-Q>, B<--squiet>=I<SECS> | |||
Like B<-q>, but show summary results every n seconds. | Like B<-q>, but additionally show interval summary results every I<SECS> | |||
seconds. | ||||
=item B<-r>, B<--retry>=I<N> | =item B<-r>, B<--retry>=I<N> | |||
Retry limit (default 3). This is the number of times an attempt at pinging | Retry limit (default 3). This is the number of times an attempt at pinging | |||
a target will be made, not including the first try. | a target will be made, not including the first try. | |||
=item B<-R>, B<--random> | =item B<-R>, B<--random> | |||
Instead of using all-zeros as the packet data, generate random bytes. | Instead of using all-zeros as the packet data, generate random bytes. | |||
Use to defeat, e.g., link data compression. | Use to defeat, e.g., link data compression. | |||
End of changes. 3 change blocks. | ||||
3 lines changed or deleted | 4 lines changed or added |