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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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Level
Clock icon Beginner
Duration
Clock icon 45m
Last updated
Clock icon Aug 22, 2025

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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.
Pluralsight Skills - Labs - Pluralsight
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Pluralsight Skills

Pluralsight Skills gives leaders confidence they have the skills needed to execute technology strategy. Technology teams can benchmark expertise across roles, speed up release cycles and build reliable, secure products. By leveraging our expert content, skill assessments and one-of-a-kind analytics, keep up with the pace of change, put the right people on the right projects and boost productivity. It's the most effective path to developing tech skills at scale.

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Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.

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