I think I like those ideas for sure...

But thyat still doesn't stop someone from mounting the CF, and CHrooting it,
and writing a new passwd file, where they could log in as a user they
created and then su root?

-Christopher

-----Original Message-----
From: Philip Prindeville [mailto:[email protected]] 
Sent: Tuesday, August 31, 2010 9:19 PM
To: [email protected]
Subject: Re: [Astlinux-users] run passwd file in /tmp?

  Passwords are stored as MD5 hashes, which are a lot harder to crack.

Also, you should be turning off root logins ("PermitRootLogin no" in your
/mnt/kd/sshd_config.tmpl), and forcing people to 'su' or 'sudo'.

And of course, "PasswordAuthentication no" will stop people from logging in
via password (you'll need to have a pre-installed public key instead).

Start with these things, and you'll already be pretty well covered.



On 8/31/10 4:20 PM, Chris Abnett wrote:
>
> I am wanting to have astlinux run my passwd file on the RAM disk.. so that
if someone were to try and root hack the box, they could not mount the disk
in another machine and chroot to it, or simply write a new /etc/passwd file
over the top of mine.
>
> A script at bootup would handle creating the new file that astlinux will
use to log users in .
>
> Is there a way to accomplish this?
>
> My intent is for someone to not be able to crack the root passcode of a
running system. they can do what they want with the drive and a non running
system. but when they would try to boot it up to run it would fail out.
>
> -Christopher
>
>


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