December 2018
Beginner
826 pages
22h 54m
English
Content preview from Linux Administration Cookbook
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
How to do it...
First, it's recommended that you fill your drive with random data, prior to creating an encrypted partition on top of it; this is so that data that wasn't encrypted can't be recovered later.
I'm going to accomplish this with shred:
$ sudo shred -v -n1 /dev/sdb1 shred: /dev/sdb1: pass 1/1 (random)...shred: /dev/sdb1: pass 1/1 (random)...1.6GiB/2.0GiB 82%shred: /dev/sdb1: pass 1/1 (random)...2.0GiB/2.0GiB 100%
Now that we've filled our drive with random data, we have to format our partition as a Linux Unified Key Setup (LUKS), an encryption specification:
$ sudo cryptsetup luksFormat /dev/sdb1 WARNING!========This will overwrite data on /dev/sdb1 irrevocably.Are you sure? (Type uppercase yes): YESEnter passphrase: Verify passphrase: ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.