Shulou(Shulou.com)06/02 Report--

This article mainly introduces the use of linux ping command to test the network connectivity between hosts, the article is very detailed, has a certain reference value, interested friends must read it!

The ping command is mainly used to test the connectivity of the network between hosts, but can also be used. The execution of the ping instruction uses the ICMP transport protocol to send a message requesting a response, and if there is nothing wrong with the network function of the remote host, it will respond to the message, thus knowing that the host is operating normally.

However, it is worth noting that the ping command on Linux is slightly different from the ping command on Windows. Running the ping command under Windows usually ends with 4 requests, but it is not automatically terminated under Linux. In this case, we need to press CTR+C to terminate or use the-c parameter to specify the number of requests sent for the ping command.

Syntax format: ping [parameters] [target host]

Common parameters:

-d use the SO_DEBUG function of Socket-c to specify the number of times to send messages-I specify the interval between sending and receiving messages-I use the specified network interface to send packets-l set before sending the request information The first packet-n outputs only values-p sets the template style to fill the packet-Q does not show instruction execution-R records the routing process-s sets the size of the packet-t sets the size of the survival value TTL-v shows the execution of the instruction in detail

Reference example

Test connectivity to the linuxcool website:

[root@linuxcool ~] # ping www.linuxcool.com

Consecutive ping4 times:

[root@linuxcool] # ping-c 4 www.linuxcool.com

Set the number of times to 4, and the interval is 3 seconds:

[root@linuxcool] # ping-c 4-I 3 www.linuxcool.com

Use the ping command to obtain the IP address of the specified website:

[root@linuxcool ~] # ping-c 1 linuxcool.com | grep from | cut-d ""-f 4

220.181.57.216 and above are all the contents of testing network connectivity between hosts using linux's ping command. Thank you for reading! Hope to share the content to help you, more related knowledge, welcome to follow the industry information channel!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.