How can we use the sar command in Linux to check intern…

1 year ago
Olivia Parker
1 minute

In Linux, you can use the sar command to view network traffic.

To use the sar command to view network traffic, follow these steps:

  1. Ensure that the sar command is installed on your system. If it is not installed, you can use the following command to install it:
sudo apt-get install sysstat
  1. Open the terminal and enter the following command to check network traffic:
sar -n DEV

This command will display statistical information for network devices, including amounts of data received and sent, and the number of errors.

  1. If you only want to view the statistics of specific network devices, you can use the following command:
sar -n DEV -I <network_interface>

Replace with the name of the network device you want to view, such as eth0 or wlan0.

  1. You can use the following command to view the historical records of network traffic.
sar -n DEV -s <start_time> -e <end_time>

Replace and with the time range you want to view. The time format is HH:MM:SS, for example, 08:00:00 represents 8:00 AM.

These commands can assist you in using the sar command to view network traffic in Linux.

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