Hi,

this is really strange because the goconserver should be the very same for 
quite some time.
goconserver-0.3.3-snap202011021058.x86_64.rpm

With site.consoleondemand set to yes  the following happens:

goconserver reads /var/lib/goconserver/nodes.json and spawns the following 
command:

/opt/xcat/share/xcat/cons/ipmi <node>

This will spawn:

/opt/xcat/bin/ipmitool-xcat -I lanplus -U XXXXXX -P XXXXXX -H <node>.ipmi sol 
activate

Can you please try to use the sol activate command manually and compare 
ipmitool-xcat vs. ipmitool?
We might want to use ipmitool directly instead of ipmitool-xcat in 
/opt/xcat/share/xcat/cons/ipmi.

Please also try with explicit cipher settings -C 3 -C 17 etc.


​Mit freundlichen Grüßen / Kind regards


Markus Hilger



HPC Engineer



MEGWARE Computer Vertrieb und Service GmbH

Tel:          +49 3722 528-47



Nordstraße 19

markus.hil...@megware.com<mailto:markus.hil...@megware.com>



09247 Chemnitz-Röhrsdorf, Germany

www.megware.com<http://www.megware.com/>



Geschäftsführer: André Singer, Dr. Axel Auweter





Amtsgericht: Chemnitz HRB 584

________________________________
Von: Calvin Sawyer <c.saw...@qmul.ac.uk>
Gesendet: Montag, 13. Mai 2024 10:01
An: xcat-user@lists.sourceforge.net <xcat-user@lists.sourceforge.net>
Betreff: [xcat-user] 2.16.5 and rcons

Hi

We've just migrated to a fresh 2.16.5 in a Rocky9.3 VM using imports from the 
previous 2.16.3, which has been mostly successful. We can rinstall and perform 
most r-commands

Our test cluster which this xcat manages is comprised of older hardware and is 
meant to serve as a dress rehearsal for upgrading similarly in our production 
cluster with newer-gen hardware

For the most part, 2.16.5 has been working fine with the notable exception of 
rcons. Both system types in the test cluster work fine with rcons under 2.16.3 
user CentOS7, but under 2.16.5:

Flex System x240 and NeXtScale nx360 M5 respond on C3 only, C17 is inoperative 
(and verified using ipmitool) with error:

Error: Unable to establish IPMI v2 / RMCP+ session
Error in open session response message : no matching cipher suite

Testing on other hardware is complicated by many accepting both C3 and C17 
(dell iDrac is one). More contemporary IMM2 allows both cipher suites as well

This leads me to think that rcons is still somewhere hardwired to C3.  We 
downloaded and patched IPMI.pm with the one from 
https://github.com/xcat2/xcat-core but the issue persists.

However, I also don't understand exactly which system or xcat-specific 
components are involved in operation of goconserver or establishing an rcons 
connection to track down where the cipher suite is set


Cal Sawyer
ITS Research Platforms Manager
Queen Mary University of London
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