Connection problems with ssh
ssh was replaced by OpenSSH on 23 March 2004. ssf uses a version 1 ssh protocol whereas OpenSSH uses a version 2 ssh protocol.
Certains changes or incompatibilities should be noted:
- The
.rhosts
file
IDRIS no longer authorizes using.rhosts
files during connections. To automatise your procedures, you must henceforth use the ssh keys respecting IDRIS recommendations. Les clés
The public keys put into your$HOME/.ssh/authorized_keys
file, encrypted by a version 1 ssh protocol are not compatible with the version 2 ssh protocol. In this case, you must:- Delete the
authorized_keys
file found in the$HOME/.ssh
directory of the IDRIS machines. - Encrypt new keys with the version 2 ssh protocol and update the
authorized_keys
file on the different machines.
Note: The public keys encrypted by a version 2 ssh protocol using the ssh-keygen -t rsa
command begin with the character string ssh-rsa
. For example, from your local machine:
$ cat id_rsa.pub ssh-rsa AbCFc4Km70lRE3dBBBBAJ........
In this way, you can verify the compatibility of the ssh protocol version installed on your local machine and the IDRIS machines.
You are still in version 1 ssh: You should update your machine by installing a recent version of ssh. On 12 october 2004, IDRIS deleted the possibility of connecting via a version 1 ssh protocol. If you wish, you can download the latest version of OpenSSH at the following address: http://www.openssh.org