Pop!_OS Linux: Checksum Integrity + Full ...

Pop!_OS Linux: Checksum Integrity + Full Install Guide For Beginners

Nov 27, 2021

https://youtu.be/vi7mwGh_FMs

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If anyone needs any help on this video, I welcome comment/questions.

Happy to help!


Continuing this privacy/sec operating systems series we move from Qubes, Tails, Whonix over to Pop OS! Great choice for beginners and experts alike.

I needed a distribution to install on my internal drive after many weeks of surviving on a Tails OS USB (which I will continue using, but sometimes we need a disk install!)

Above we download System76's Pop OS and learn to use checksums to evaluate file integrity.

This is a rather important thing to learn as files can be manipulated. Not only on a server, but also in mid download! There are additional ways to further check integrity we will cover in future videos.


TIP FOR CHECKSUMS: If relying on checksums for integrity checking, it is ideal to find them on a server outside the download itself.

Why? If the download server were compromised, it could potentially contain bad checksums.

One 3rd party website for finding for a specific distributions current checksum, would be the Linux project's git page (ie: github/gitlab/gitea)

If you need any help at all with this, please leave a comment! Happy to help!

CHECKSUMS: REAL EXAMPLE FROM LINUX HISTORY

Years ago Linux Mint's server was remotely broken into. The Mint download image that day (not now!) contained a backdoor (To be clear: THEN, not now)! This affected users that day, and thankfully since then, they have had no further problems.

I was even a daily driver Linux Mint user at the time, but not a victim. I still love Linux Mint and highly recommend it.

IMPORTANT NOTE: I'm not looking to tarnish their (well deserved) good name. This could have happened to any Linux distribution. Any download. These things happen, but remain a reminder why checksum integrity (along with PGP signature integrity) is vital to understand.

I recommend Linux Mint as another beginning Linux option today. It was a consideration for this series.

Including a real world example feels important.

The point is, these things can happen on ANY server. The next download you make could be backdoored at anytime. It could come through a MITM (Man in the middle) or a file replacement.

And as my video (below) on "watch out for hidden code" demonstrates, the file itself could remove evidence of itself ever existing: after sharing sensitive information (such as in the mac address example I created using base64 to mask the original script)

WATCH OUT FOR HIDDEN CODE (SELF REMOVING EVIDENCE, MAC ADDRESS "CALLING HOME" SHARING EXAMPLE):

https://youtu.be/rvVHk6y8nag


After we download and check the integrity and flash it to the USB stick as shown the top video, we can move on to installation:

Pop OS! FULL LINUX INSTALL FOR BEGINNERS + ADVICE ALONG THE WAY

https://youtu.be/6E1QB-DE1to

We will continue working with Pop OS in coming videos. Make sure to Follow me here to not miss out on anything.

I may add more to this later and if you have questions or suggestions, I welcome them below!


Thanks for reading and following/watching.


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RELATED LINKS:
https://www.system76.com
Pop OS! Download: https://pop.system76.com/

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