ping command

LINUX-Frequently used commands

ping command Checking for communication with hosts on the network.
Syntax
ping   [Option]  [Host name (or IP address)]
The ping command sends ICMP packets to the host specified as the destination, and measures whether the destination host responds, the network reply time, etc..
This is mainly used to check that the destination host and network equipment are working and communicating correctly..
The Linux ping command sends a packet to the specified remote host every second.
Linux ping command sends a packet to the specified remote host every second, but does not send 4 packets by default and then quit like Windows.
Note that if the option is not specified, the packet will continue to be sent endlessly unless the user cancels it with the interrupt key.
To exit the ping command, press ‘Ctrl’ + ‘c’..
Frequently used options
-c   Number of packets to be sent
-i    The interval at which packets are sent
Example: Checking the status of communication with a host (specifying IP address).
$ ping 192.168.11.51  Run by IP address
PING 192.168.11.51 (192.168.11.51) 56(84) bytes of data.

64 bytes from 192.168.11.51: icmp_seq=1 ttl=128 time=0.268 ms
64 bytes from 192.168.11.51: icmp_seq=2 ttl=128 time=0.240 ms
64 bytes from 192.168.11.51: icmp_seq=3 ttl=128 time=0.310 ms
64 bytes from 192.168.11.51: icmp_seq=4 ttl=128 time=0.281 ms
64 bytes from 192.168.11.51: icmp_seq=5 ttl=128 time=0.214 ms
64 bytes from 192.168.11.51: icmp_seq=6 ttl=128 time=0.352 ms
64 bytes from 192.168.11.51: icmp_seq=7 ttl=128 time=0.290 ms
64 bytes from 192.168.11.51: icmp_seq=8 ttl=128 time=0.206 ms
64 bytes from 192.168.11.51: icmp_seq=9 ttl=128 time=0.254 ms
64 bytes from 192.168.11.51: icmp_seq=10 ttl=128 time=0.293 ms
64 bytes from 192.168.11.51: icmp_seq=11 ttl=128 time=0.207 ms
64 bytes from 192.168.11.51: icmp_seq=12 ttl=128 time=0.342 ms
64 bytes from 192.168.11.51: icmp_seq=13 ttl=128 time=0.223 ms
64 bytes from 192.168.11.51: icmp_seq=14 ttl=128 time=0.217 ms
64 bytes from 192.168.11.51: icmp_seq=15 ttl=128 time=0.267 ms
^C
— 192.168.11.51 ping statistics —
15 packets transmitted, 15 received, 0% packet loss, time 13999ms
rtt min/avg/max/mdev = 0.206/0.264/0.352/0.047 ms

15 packets transmitted    Number of packets sent
15 packets received         Number of packets received
0% packet loss                Loss of packets
time 3999ms                   Total time taken to perform
rtt min/avg/max/mdev     Minimum/average/maximum/standard deviation values for response times

Example: Checking the status of communication with a host (host name specification).
$ ping Panser   Run with hostname Panser
PING Panser (192.168.11.51) 56(84) bytes of data.
64 bytes from Panser (192.168.11.51): icmp_seq=0 ttl=64 time=0.185 ms
64 bytes from Panser (192.168.11.51): icmp_seq=1 ttl=64 time=0.179 ms
64 bytes from Panser (192.168.11.51): icmp_seq=2 ttl=64 time=0.166 ms
64 bytes from Panser (192.168.11.51): icmp_seq=3 ttl=64 time=0.174 ms
64 bytes from Panser (192.168.11.51): icmp_seq=4 ttl=64 time=0.170 ms
64 bytes from Panser (192.168.11.51): icmp_seq=5 ttl=64 time=0.158 ms
Example: Check the communication status by specifying the number of times.
$ ping -c 5 Panser    Run 5 times
PING Panser (192.168.11.51) 56(84) bytes of data.
64 bytes from Panser (192.168.11.51): icmp_seq=0 ttl=64 time=0.184 ms
64 bytes from Panser (192.168.11.51): icmp_seq=1 ttl=64 time=0.175 ms
64 bytes from Panser (192.168.11.51): icmp_seq=2 ttl=64 time=0.174 ms
64 bytes from Panser (192.168.11.51): icmp_seq=3 ttl=64 time=0.174 ms
64 bytes from Panser (192.168.11.51): icmp_seq=4 ttl=64 time=0.170 ms
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