In a Linux system, to test the connectivity to the target host using the ping command, you can perform the following steps:
Open the terminal or command line interface.
ping 8.8.8.8。ping 8.8.8.8。
Press Enter to execute the command.
The ping command sends an ICMP echo request packet to the destination host and displays the response. The output information can be used to determine whether the target host is reachable. Please note that ping in Linux will not be terminated automatically, you need to press CTRL+C to terminate, or use the parameter "-c" to specify the number of responses that are required to be completed.
Here's a detailed explanation of the ping command:
Syntax: The basic syntax of the ping command is "ping destination hostname".
How it works: The ping command sends an ICMP echo request packet to the destination host and waits for a response from the target host. When the target host receives the request, it returns an ICMP echo reply packet in response. The ping command determines the connectivity to the target host by sending a request and receiving a response.
Parameters: The ping command has many parameter options that can be used to customize the behavior of the ping request. Some commonly used parameters include:
t: Continuously sends requests to the target host until the user is interrupted.
A: Resolves the IP address of the destination host to the hostname.
n: specifies the number of times the request is sent.
l: Set the size of the request to be sent.
i: Set TTL (Time to Live), that is, the maximum number of hops that a packet can survive in the network.