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Re: ssh, su and root access



On Mon, 2004-11-01 at 12:11 +0100, Luis Fernando Llana Díaz wrote:
> Hi all,
>   I have a doubt. I ussually use ssh to access remote machines 
> without sending any password (PasswordAuthentication no) and I
> store private keys with the help of ssh-agent.
>   This is valid also to login as another users (including root)
> in the local machine (ssh root@localhost). With the help of ssh
> agent, on can open several root sessions by only asking one 
> password: the one of my private key "id_rsa". In this way I void
> tping a root password any time I want to be root.
> It is very easy for me to work this way, but I would to know if
> there could be aware of any possible security problems to do so.
> The only problem is that if I make ssh root@localhost, its gain
> root privileges whitout asking any password.

You are right to fear.  Disable root logins via ssh, and use su
and sudo on the remote box to do root stuff.

-- 
-----------------------------------------------------------------
Ron Johnson, Jr.
Jefferson, LA USA
PGP Key ID 8834C06B

"Would you mind not firing on the thermonuclear weapons?"
A great line, from a *great* action flick: Broken Arrow

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