ssh and sudo

[Arnaud G]

On Tue, Nov 16, 2010 at 5:28 PM, Arnaud G <lepelerin2002 at yahoo.com> wrote:
> Hi,
>
> Here is what I would like to do in my environment
>
> env: all machines running Ubuntu 10.04 LTS.
> all machines running openssh-server and openssh-client
>
> User "A" on machine "a" and user "B" on machine "b", user "C" on machine "c"
> and so forth ...
>
> First I want to be able to ssh to "b" from "a" without the remote ("B") user
> password. So login as "B" on "b" from "a" with "A".
> I was successful setting that up following these instructions:
>
> http://linuxproblem.org/art_9.html
>
> Now what I want to do is to use sudo on "b" as "B" with "A" 's password or
> no password. I would prefer to use my ssh key for that.
>
> Setting up the sudoers file with the NOPASSWD option is not an option. I
> want user "B" to keep her sudo password.
>
> I have been trying many things I could find on the web, but to no
> availability.
> Every time I try to sudo on "b", it asks for "B" 's password.
>
> Any chance that it can be done. If yes could you point me in the right
> direction.
>
> But first is it the best way to do it.
> Thank you in advance for sharing your knowledge.
>
> A
>
>
From: Chris MacDonald <chris at fourthandvine.com>
To: "Ubuntu user technical support, not for general discussions" 
<ubuntu-users at lists.ubuntu.com>
Sent: Tue, November 16, 2010 9:40:25 PM
Subject: Re: ssh and sudo

>Someone here might be able to describe a setup wherein this would work
>solely with ssh and sudo being used, but have you considered nis?
>Centralizing authentication would make parts of what you're wanting to
>do a lot easier.
>
>Chris
>


Tx Chris, but what do you mean exactly by centralized authentication? The 
situation here is that I maintaining my converted friends machines (6 at the 
moment but soon a couple more). I made them switch from Vista to Ubuntu. the 
deal we agreed upon is "OK we go with Ubuntu but you maintain the machine". 
Having machine being located remotely how can I have centralized authentication. 
I am ready to try a better solution than mine. I am open to any suggestion that 
would make my life easier.

A


      
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