initial security

initial security

[gtr]

hi
i've got a bare bones linux system up and running.
but zero security on it.
i dont want to change it since i've hacked the kernel and got a bunch  of stuf fon it taht i like
and for reasons that mystify me grub wont boot on it so i had to hack the boot loader.

the question is. i have no security onit apart form tcp wrappers and the firewall on the router.
which is all somewhat iffy.
 whats the best way to get the standard login/mingetty/pam security stuff installed.


ther just doesnt seem  to be much documentation around about this.

ta muchly
neil foster

Re: initial security

[terry white]

... ciao:

: bare bones linux
: zero security
: hacked kernel
: bunch of stuff
: grub wont boot
: hacked boot loader.
: 
: whats the best way to get the standard
: login/mingetty/pam security stuff installed.
 
    given the above listed system attributes, i'd have to think
you the system expert , on this 'one of a kind' platform.  i am more than 
willing to admit NOT understanding what you've described, and have no clue 
how to approach a not too well defined result.

 
: ther just doesnt seem  to be much documentation around about this.
 
    perhaps, the first step toward a solution, is 'writing' documentation 
for the system you've created ...


-- 
... it's not what you see ,
    but in stead , notice ...

Re: initial security

[Adam T. Bowen]

Hi Neil,

It's difficult to know where to start. Sounds pretty barebones at the 
moment. The first thing you need to know is how your system is 
configured to start up. If you are using System V style boot scripts, or 
a more modern init system such as Upstart. You should probably start by 
having a look if you've got an /etc/inittab file. This is processed by 
the init process, and it will usually start up a number of getty 
(probably using agetty or mingetty) processes that should handle user 
login. I'm assuming that you have a getty and login program available on 
the system? If not you will want to look at building something like the 
util-linux package:

   https://www.kernel.org/pub/linux/utils/util-linux/

That's just the start of course. These things usually have dependencies 
that cause long chains of package building when you are trying to build 
a system from scratch. Good fun though!

Adam

On 05/05/15 16:10, gtr@the-vampire-bites.org.uk wrote:
> hi
> i've got a bare bones linux system up and running.
> but zero security on it.
> i dont want to change it since i've hacked the kernel and got a bunch  of stuf fon it taht i like
> and for reasons that mystify me grub wont boot on it so i had to hack the boot loader.
>
> the question is. i have no security onit apart form tcp wrappers and the firewall on the router.
> which is all somewhat iffy.
>   whats the best way to get the standard login/mingetty/pam security stuff installed.
>
>
> ther just doesnt seem  to be much documentation around about this.
>
> ta muchly
> neil foster
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Re: initial security

[Siegmar Alber]

Hi Neil,

as Adam wrote:


> On 06.05.2015 12:57, Adam T. Bowen <adamb@agitate.org.uk> wrote:
> 
> That's just the start of course. These things usually have dependencies that cause long chains of package building when you are trying to build a system from scratch. Good fun though!


Maybe "Linux From Scratch" can help to guide you through the chain of dependencies and how to compile and install all required packages: http://www.linuxfromscratch.org

-- 
Good luck,
Siegmar