How to use the ping command to check network connectivity on Ubuntu?

@lia 

To use the ping command to check network connectivity on Ubuntu, follow these steps:

1. Open a terminal window on your Ubuntu system.
2. Type the following command:

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ping <IP address or domain name>

Replace <IP address or domain name> with the IP address or domain name of the server or website you want to check connectivity to. For example, to check connectivity to Google, you can type:

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ping google.com

1. Press Enter to run the command.
2. You will see a series of messages indicating the status of the network connection. If the connection is successful, you will see messages indicating that packets are being sent and received. If the connection is not successful, you will see messages indicating that packets are being lost.
3. To stop the ping command, press Ctrl + C.

Note: In some cases, a network connection may be blocked by a firewall or other security settings. In such cases, the ping command may not work even if the network connection is active.