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PING Command on linux


PING Command

PING (Packet INternet Groper) command is the best way to test connectivity between two nodes. Whether it isLocal Area Network (LAN) or Wide Area Network (WAN). Ping use ICMP (Internet Control Message Protocol) to communicate to other devices. You can ping host name of ip address using below command.

# ping 4.2.2.2

PING 4.2.2.2 (4.2.2.2) 56(84) bytes of data.
64 bytes from 4.2.2.2: icmp_seq=1 ttl=44 time=203 ms
64 bytes from 4.2.2.2: icmp_seq=2 ttl=44 time=201 ms
64 bytes from 4.2.2.2: icmp_seq=3 ttl=44 time=201 ms

OR

# ping www.tecmint.com

PING tecmint.com (50.116.66.136) 56(84) bytes of data.
64 bytes from 50.116.66.136: icmp_seq=1 ttl=47 time=284 ms
64 bytes from 50.116.66.136: icmp_seq=2 ttl=47 time=287 ms
64 bytes from 50.116.66.136: icmp_seq=3 ttl=47 time=285 ms

In Linux ping command keep executing until you interrupt. Ping with -c option exit after N number of request (success or error respond).

# ping -c 5 www.tecmint.com

PING tecmint.com (50.116.66.136) 56(84) bytes of data.
64 bytes from 50.116.66.136: icmp_seq=1 ttl=47 time=285 ms
64 bytes from 50.116.66.136: icmp_seq=2 ttl=47 time=285 ms
64 bytes from 50.116.66.136: icmp_seq=3 ttl=47 time=285 ms
64 bytes from 50.116.66.136: icmp_seq=4 ttl=47 time=285 ms
64 bytes from 50.116.66.136: icmp_seq=5 ttl=47 time=285 ms

--- tecmint.com ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4295ms
rtt min/avg/max/mdev = 285.062/285.324/285.406/0.599 ms

asked Jun 9, 2015 in LINUX by rajesh
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