DNS Server linuxLinux serverNETWORK ADMINISTRATIONS

Domain Name System (DNS) basics tutorial in Linux

CAINE – 18 – DNS basics tutorial

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Difficulty Level: beginner
Prerequisites: basic understanding of linux command line
basic understanding of networking

In this video, we will look at how Domain Name System (DNS) work with Linux.

Video timeline
00:00 intro
01:08 /etc/hosts
03:04 DNS servers: bind and dnsmasq
05:47 /etc/resolv.conf
07:33 /etc/nsswitch.conf
09:18 summary

⭕️ For other videos about the Linux command line, see other videos in this series: https://www.youtube.com/playlist?list=PLSbhiuoC0XgX70ZtgJ7d-1rLui0jZRabg

⭕️ To learn more about networking, see other videos in this series: https://www.youtube.com/playlist?list=PLSbhiuoC0XgXXJpFBzFvPd3AjPWmHTOPA

Linux distro:
CAINE  linux (http://www.caine-live.net)

Virtualization software:
Virtual Box (http://virtualbox.org)

DNS server software:
Dnsmasq (https://thekelleys.org.uk/dnsmasq/doc.html)
BIND (sudo apt install bind9)

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Folks: these tools should only be used on networks that you own or have explicit consent to be on. “hacking” networks can land you in some very unpleasant places controlled by very scary people. I’ve been to countries where the Law Enforcement folks have told me some cautionary tales
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Icons made by Smashicons from  ttp://www.flaticon.com/authors/smashicons

This course was designed to provide information on how to use the command line environment in a Unix/Linux system to accomplish tasks such as imaging, data acquisition, and archiving.  This course covers the basics of Unix/Linux commands that allow users to view and edit text files, obtain hardware and system information, partitioning and formatting, process related commands, manipulating disks and partitions, imaging, archiving, logical acquisition, live system response, and basic networking.

This would be beneficial for folks who are interested in digital forensics, incidence response, system administration, ethical hacking, or just plain linux.  his course covers material for beginners as well as for advanced users. This course would also be helpful if you are considering taking the CompTIA Linux+ certification test.

#DFIR #networking #DNS

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by BlueMonkey 4n6

linux dns server

11 thoughts on “Domain Name System (DNS) basics tutorial in Linux

  • Im just starting with networking. Have a web app in production (cloudflare + digital ocean VPS). at digital ocean, I have to ssh into my vps with ip say "xx.xx.xx.xx" but when I ping domain name from terminal I see entirely different ip. I have a lease for static IP (even though I probably dont need it), and IP visible in ping command output is not static, nor xx.xx.xx.xx for my VPS. How/why?

  • Nice video very good and explanatory

  • Underrated channel, very good stuff!!

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