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Re: cryptic netcat

...on Tue, Sep 26, 2000 at 11:46:40AM +0100, John Wright wrote:

 > On Tue, Sep 26, 2000 at 11:44:06AM +0200, Alexandre Dulaunoy wrote:
 > > On Tue, 26 Sep 2000, John Wright wrote:
 > > > On Mon, Sep 25, 2000 at 03:25:05PM -0300, Rafael Coninck Teigao wrote:
 > > > > You could make an encrypted tunnel with ssh.
 > > > The difference being that you need a login on the destination box.
 > > That's not true, you can keep key with ssh-agent and using standard script
 > > with scp & so on without typing any password. (i use it everyday). 
 > No.  It is true.  You *have* to login to another box.  ssh-agent just means
 > you don't have to enter a password or passphrase.  I use ssh-agent too.  

Create a new ssh identity with an empty passphrase and put the 
public key in the authorized_keys on the destination machine.

use ssh -i ~/.ssh/key -o BatchMode=yes remotehost

You will not be asked for a passphrase and you don't need ssh-agent 
(if you can live with unprotected keys).

I think the risk is acceptable with restricted-use logins that 
for example just run a specific program (man sshd and look for 
the options in authorized_keys).


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