The fping of Linux Network Tools

The system has one of the most common command tools--ping, while fping is the enhanced version of the Ping tool. The installation process is simple:

[email protected]/]# wget--limit-rate 500k http://www.fping.org/dist/fping-3.8.tar.gz [email protected]/]# tar zxvf fping-3.8.tar.gz && cd fping-3.8 [[email protected]/]# ./configure && make && make install  [email protected]/]# fping--help fping:invalid Option--'-'usage:fping [Options] [targets ...]-A show targets that is alive -A show targets by address- B N amount of ping data to send, in bytes (default)- b F set exponential backoff factor to F- C n count of pings to send to each target (default 1)- c n same as-c, report results in verbose format- d print timestamp before each output line- e show elapsed time on return packets- F file read List of targets from a file (-means stdin) (only if no-g specified)- g generate target list (only if no-f specified)(Specify the start and end IP in the target list, or supply a IP netmask)(ex. fping-g 192.168.1.0 192.168.1.255 or fping-g 192.168.1.0/24)- H n Set the IP TTL value (time to Live hops)-I n interval between sending ping packets (in millisec) (default)- L Loop sending pings forever- m ping multiple interfaces on target host- n show targets by name (-D is equivalent)- p n interval between ping packets to one target (in millisec)(in looping and counting modes, default)- Q Quiet (don ' t show per-target/per-ping results)- q n same as-q, but show summary every n seconds- R n number of retries (default 3)- s Print final stats-I if bind to a particular interface- s addr set source Address- T n individual target initial timeout (in millisec) (default)- t n ignored (for compatibility with fping 2.4)- u Show targets that is unreachable- o-n set the type of Service (TOS) flag on the ICMP packets- v show version   Practical Cases

• Example of surviving hosts in a local area network

[Email protected]/]#fping-a 192.168.0.1/24-g 2>/dev/null192.168.0.1192.168.0.3... .........

• Querying DNS

the fping has a-D, which returns a host name by using each echo response to perform a DNS query. Use this option to print the host name instead of the IP address in the ping's response message[Email protected]/]#Cat Ip_list.txt192.168.20.5192.168.20.11192.168.20.53192.168.20.241 ......... ......... [Email protected]/]#Fping-a-D 2>/dev/null < Ip_list.txtWww.vqiudns.vqiu

The fping of Linux Network Tools