ssh problem

OS: SLES 11 SP 4
We have the following problem: We want to establish a ssh connection
between 2 SLES machines for some users without password. Normally it
works without a problem, but with 2 new users it does not work.

What we did is the following:

as user a on machine A:
[email protected]> ssh-keygen -t rsa
no passphrase
[email protected]> cat ~/.ssh/id_rsa.pub | ssh [email protected] 'cat >> .ssh/authorized_keys'

We use the local /etc/password, the output of "id a" is identical on
both machines.

The same procedure is successful for user c, but not for a and b. Where
should I search for differences between a, b and c?

Thanks in advance!

Regards
Burkhard

 

Am 18.11.2015 um 12:25 schrieb Burkhard Schultheis:

I found it myself: Permissions of the home directory on the foreign
machine was 775, not 755.

 

log onto B as root. Look at the .ssh/authorized_keys files for each of
the users a, b and c.
Look at the .ssh/id_rsa.pub files for each of the users a, b, and c on
machine A. Make sure that they are exactly the same stuff.

Then make sure that the permission are correct on the .ssh directlry and
on the files
It must not be readable, writeable of exactutable by others.
Also the various files should not be readable or writeable except for
the user.