Re: SL6 ssh fail

2023-01-05 Thread Nico Kadel-Garcia
On Thu, Jan 5, 2023 at 11:18 PM Konstantin Olchanski  wrote:
>
> I cannot ssh to SL6 machines from current MacOS or Debian 20 or 22:

SL 6 is obsolete, the upstream RHEL 6 is out of primary support for
more than 2 years. Maybe time to upgrade?


> root@daq00:~# ssh ladd00
> Unable to negotiate with 142.90.111.60 port 22: no matching host key type 
> found. Their offer: ssh-rsa,ssh-dss

Some SSH servers in Microsoft Azure have similar issues.

> Are there updated ssh rpm packages anywhere?
>
> In the mean time, this workaround works for me:
>
> bash-3.2$ ssh -oHostKeyAlgorithms=+ssh-rsa 
> -oPubKeyAcceptedAlgorithms=+ssh-rsa ladd00
> Last login: Thu Jan  5 19:18:20 2023 from daq07.triumf.ca
> ladd00:~$

You can put that in your ~/.ssh/config pointed to that particular server.

> --
> Konstantin Olchanski
> Data Acquisition Systems: The Bytes Must Flow!
> Email: olchansk-at-triumf-dot-ca
> Snail mail: 4004 Wesbrook Mall, TRIUMF, Vancouver, B.C., V6T 2A3, Canada


SL6 ssh fail

2023-01-05 Thread Konstantin Olchanski
I cannot ssh to SL6 machines from current MacOS or Debian 20 or 22:

root@daq00:~# ssh ladd00
Unable to negotiate with 142.90.111.60 port 22: no matching host key type 
found. Their offer: ssh-rsa,ssh-dss

Are there updated ssh rpm packages anywhere?

In the mean time, this workaround works for me:

bash-3.2$ ssh -oHostKeyAlgorithms=+ssh-rsa -oPubKeyAcceptedAlgorithms=+ssh-rsa 
ladd00
Last login: Thu Jan  5 19:18:20 2023 from daq07.triumf.ca
ladd00:~$ 

-- 
Konstantin Olchanski
Data Acquisition Systems: The Bytes Must Flow!
Email: olchansk-at-triumf-dot-ca
Snail mail: 4004 Wesbrook Mall, TRIUMF, Vancouver, B.C., V6T 2A3, Canada


Re: Crucial Computer Program for Particle Physics at Risk of Obsolescence | Quanta Magazine

2023-01-05 Thread Götz Waschk

Am 05.01.23 um 04:31 schrieb Yasha Karant:
SL originally was rebuilt through Fermilab/CERN for HEP and adopted by a 
number of persons who wanted a stable "hardened enterprise" Linux. 
Because of the association with HEP and the needed computational 
resources for the support of HEP, I was curious if anyone on this list 
was or will be involved with FORM.  Was FORM being used on SL 
environments?  Is it being used today on whatever environments that 
currently are deployed by what were SL HEP sites?  Most of the HEP lists 
that are available outside of the actual communities of the various HEP 
collaborations do not seem to be discussing this issue.  Sorry for the 
intrusion.


Hi Yasha,

DESY is still using FORM in the theoretical physics group, we have even 
bought work group servers with lots of RAM to run it, on SL7 of cause.


Regards,
Götz Waschk

--
Götz Waschk° Phone:  +49 33762 77169
Deutsches Elektronen-Synchrotron DESY  ° E-Mail: goetz.was...@desy.de
Platanenallee 6
15738 Zeuthen Germany



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