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Locating Network Configuration Information from the Command Line

Being able to find and understand network configuration information is fundamental to using Linux on a network. In this hands-on lab, we will determine the network configuration for the eth0 interface of the lab host.

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Path Info

Level
Clock icon Beginner
Duration
Clock icon 45m
Published
Clock icon Jul 17, 2019

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Table of Contents

  1. Challenge

    Determine the IP Address

    1. Run the following command:
    sudo ip addr show
    1. Note the IPv4 and IPv6 addresses in the output.

  2. Challenge

    Determine the MAC Address

    1. Run the following command:
    sudo ip addr show
    1. Note the MAC address in the output.

  3. Challenge

    Determine the Gateway

    1. Show the routing table.
    sudo ip route show
    1. Note the gateway in the output.

  4. Challenge

    Determine the DNS Server

    1. Show the DNS nameserver:
    cat /etc/resolv.conf | grep nameserver
    1. Note the DNS server in the output.
A Cloud Guru - Labs - Locating Network Configuration Information from the Command Line
Author
A Cloud Guru

The Cloud Content team comprises subject matter experts hyper focused on services offered by the leading cloud vendors (AWS, GCP, and Azure), as well as cloud-related technologies such as Linux and DevOps. The team is thrilled to share their knowledge to help you build modern tech solutions from the ground up, secure and optimize your environments, and so much more!

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