ssh without password is not working correctly

[ShibuThomas]

Hi Nigel,

Yes, you are right.
I done as such you mentioned.Its working now
Thanks.

Regards
ShibuThomas


Nigel Wade wrote:
> On 29/06/11 11:46, ShibuThomas wrote:
>   
>> HI all.
>>
>> I want to do ssh login into two different mechines on by one.I tried the
>> following squence.but it is not working correctly.
>> For Ex I have 3 mechines Host1,Host2,Host3.
>> I need to login into Host2,Host3 using SSH from Host1.
>> I tried the following:
>> step 1:
>> -logged into Host 1
>> -execute ssh localhost
>>     
> Why, you are already logged into host1?
>
>   
>> -execute ssh-keygen -t dsa
>> -execute scp ~/.ssh/id_dsa.pub Host2:.ssh/authorized_keys2
>> -exectue ssh -l root Host2
>> not get the prompt for password.
>>     
>
> Ok, so now you have a private key on host1, and the corresponding public
> key on host2.
>
>   
>> Then I tried to connect to Host3
>> step 2:
>> -logged into Host 1
>> -execute ssh localhost
>> -execute ssh-keygen -t dsa
>>     
>
> You just created a new public/private key pair, overwriting the keys you
> previously created (which you need to logon to host2).
>
>   
>> -execute scp ~/.ssh/id_dsa.pub Host3:.ssh/authorized_keys2
>> -execute ssh -l root Host3
>> not get the prompt for password.
>>     
>
> Ok, so using the new public/private key works for host3.
>
>   
>> But after this I tried to connect Host2 from Host1 using
>> -ssh -l root Host2
>> I got the prompt for enetring pasword.
>>     
>
> Because you overwrote the private key on host1 which is needed to
> connect to host2 using the public key on host2.
>
>   
>> Is anyone know how to rectify this.
>>
>>     
>
> Copy the new public key to host2
>
>   
>> -log into Host 1
>> -execute scp ~/.ssh/id_dsa.pub Host2:.ssh/authorized_keys2
>>     
>
> All you needed to do at step 2 was copy the same public key to host3,
> just as you had already done for host2.
>
>   


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