The cores only have the rooot user. When you logon to the MCPC as yourself, you can logon the cores as ssh root@rckxx where xx is the core number. No password is needed. sccKit sw installation set up ssh key value pairs for you.
Why do you need a username/password on the core itself?
I was asking this question because I'm writing a python scripts that loads different program in each SCC core.
One easy solution as you suggest is just to call the ssh root@rckxx followed by the commad I want to execute. Unfortunately if I want to ensure the end of the task I am running it is hard using the python subrpocess lib.
Thus I found a python library that implement directly the libssh2 API (http://www.no-ack.org/2010/11/python-bindings-for-libssh2.html) and open a ssh stream between the python script and each core. Unfortunately the two login methods it does supply are:
Now it does not work if I select user = root and password empty and it does not work if I point to the ssh key in sccKit.
I have tried with an other lab machine with username and password and works pretty well.
Thus I was wondering if the root user in each scc core has a special password. I tryed bruteforce the root account using software such as "john the ripper" and I obtained NO PASSWORD. Then I went throught the buildroot files to find if there was any setting I could change to enable the password...then I wrote the post.
Thus it look like root account in buildroot is without password, but the I do not understand why I'm not allowed to login if I remove the ssh_config settings that point to the sccKit/.ssh/openssh_id_rsa . If I'm doing that as consequence of "ssh root@rckXX" it asking me the login password and even if I keep it empty it does not let me log in.
Do you think it is possible to login to scc cores without using the sccKit/.ssh/openssh_id_rsa key ? or I am forced to do that and thus I need find the righ configuration for the
Thanks in advance,
You can login as root and issue the adduser command to create a new user
rck00:/root # adduser -h /bozo bozo
Changing password for bozo
Bad password: too weak
Password for bozo changed by root
tekubasx@marc101:~$ ssh bozo@rck00
rck00:/bozo # pwd
You'd have to do this for each core, but I think you can write a script to do it. The logins you create would not persist over reboots. To have them persist over reboots, you'd have to modify SCC Linux. You'd have to build a custom SCC Linux. You have access to SCC Linux source code at http://marcbug.scc-dc.com/svn/repository/trunk/sccLinux/
Yep it should work!!!