Unable to set up a two way passwordless ssh

[John M Cavallo]

On Tuesday, October 14, 2014 06:14:22 PM you wrote:
> On 10/14/2014 05:59 PM, John M Cavallo issued this missive:
> > I have two Fedora 20 boxes that I am trying to set up a passwordless login
> > from each to the other. I am able to set up the login from one, bert, to
> > the other, ernie, but not the other way around.
> > 
> > To create it, I do the following:
> > 
> > On bert,
> > 
> >     remote_user=jack at ernie
> >     ssh-keygen -t dsa
> >     ssh ${remote_user} mkdir -p .ssh
> >     ssh ${remote_user} chmod 700 .ssh
> >     cat .ssh/id_dsa.pub | ssh ${remote_user} 'cat >> .ssh/authorized_keys'
> >     ssh ${remote_user} chmod 600 .ssh/authorized_keys
> > 
> > Then when I execute
> > 
> >     ssh ${remote_user}
> > 
> > I can go from bert to ernie without a password. Reversing the process
> > however doesn't work, I still need a password to go from ernie to bert.
> > What is most confusing is that I haven't found any configuration option
> > that is different between the two.
> 
> Uhm, see if ssh-agent is running on ernie.

ssh-agent is running on both.

> Also, you could have
> simplified this by using:
> 
> 	$ ssh-keygen -t dsa
> 	$ ssh-copy-id -i ~/.ssh/id_dsa.pub jack at ernie
> 
> That would have done steps 3-6 you did manually. See "man ssh-copy-id"
> for details. You do know you only have to do the "ssh-keygen" once and
> use the same id_dsa.pub on all your remote machines, right?

Learn something new every day.

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