Jarrod,
Would/could goconserver from Confluent be brought into xCAT relatively easily?  
 
----
Don Avart
CTO
RedLine Performance Solutions, LLC
(703) 634-5686
dav...@redlineperf.com

> On Jan 10, 2024, at 11:09 AM, Jarrod Johnson <jjohns...@lenovo.com> wrote:
> 
> gocons is 'goconserver'.  confluent has a baked in console handler for ipmi 
> that is written in python.
> 
> One could imagine a modification to the ipmitool invocation to try default 
> and add -C 3 if it fails (exits within a second or so)
> From: David Johnson <david_john...@brown.edu>
> Sent: Wednesday, January 10, 2024 11:02 AM
> To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net>
> Subject: Re: [xcat-user] [External] Ipmitool support for old BMC cipher suite 
> 3
>  
> For console I’m still broken with both goconserver and ipmitool (w/o
> -C 3). I thought gocons came from confluent — is there a better way to do 
> console now from confluent?
>   -- ddj
> Dave Johnson
> 
>> On Jan 10, 2024, at 10:44 AM, Jarrod Johnson <jjohns...@lenovo.com> wrote:
>> 
>> 
>> Well, I suspect it works when the amended result was posted that the xCAT 
>> fallback did function fine.
>> 
>> So it's a matter of ipmitool's fallback being perhaps too picky or is 
>> outright broken.
>> 
>> In xCAT/confluent we try 17 and if failed, just start over at 3.
>> 
>> ipmitool tries to more carefully decide what it's initial attempt will be 
>> based on advertised support (I think from a cursory glance).  So I could 
>> imagine how a strange response to supported ciphers could steer ipmitool 
>> wrong when xcat/confluent can fare better.
>> 
>> Unfortunately on our side we deprecated use of ipmitool for console, so I'm 
>> a bit rusty in evaluation.
>> From: Ryan Novosielski <novos...@rutgers.edu>
>> Sent: Tuesday, January 9, 2024 10:23 PM
>> To: Jarrod Johnson <jjohns...@lenovo.com>
>> Cc: xCAT Users Mailing list <xcat-user@lists.sourceforge.net>
>> Subject: Re: [xcat-user] [External] Ipmitool support for old BMC cipher 
>> suite 3
>>  
>> That’s a good question! We don’t currently have a Confluent system running 
>> anything newer than RHEL7 managing anything other than DSS-G equipment, but 
>> we’re planning to upgrade our management system to RHEL9 soon, or 
>> alternatively could add an additional machine to one of the DSS-G clusters 
>> to see.
>> 
>> --
>> #BlackLivesMatter
>> ____
>> || \\UTGERS,     |---------------------------*O*---------------------------
>> ||_// the State  |         Ryan Novosielski - novos...@rutgers.edu
>> || \\ University | Sr. Technologist - 973/972.0922 (2x0922) ~*~ RBHS Campus
>> ||  \\    of NJ  | Office of Advanced Research Computing - MSB A555B, Newark
>>      `'
>> 
>>> On Jan 9, 2024, at 18:16, Jarrod Johnson <jjohns...@lenovo.com> wrote:
>>> 
>>> Curious, how does confluent ipmi interaction work against those systems?  
>>> does it manage to successfully downgrade transparently?
>>> From: Ryan Novosielski via xCAT-user <xcat-user@lists.sourceforge.net>
>>> Sent: Tuesday, January 9, 2024 5:37 PM
>>> To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net>
>>> Cc: Ryan Novosielski <novos...@rutgers.edu>
>>> Subject: Re: [xcat-user] [External] Ipmitool support for old BMC cipher 
>>> suite 3
>>>  
>>> I can confirm that that last part is not true:
>>> 
>>> root@fw01-hpc-hill:/home/novosirj 11:11 PM# ipmitool -U USERID -I lanplus 
>>> -H master-imm chassis status
>>> Password: 
>>> Error in open session response message : no matching cipher suite
>>> 
>>> Error: Unable to establish IPMI v2 / RMCP+ session
>>> 
>>> …and suspected as much since I had to learn anything about the cipher 
>>> suites and -C. :-D 
>>> 
>>> Maybe the version provided by RHEL derivatives has defaults or something? 
>>> We’re on RHEL8/9 where we’re seeing it.
>>> 
>>> —
>>> #BlackLivesMatter
>>> ____
>>> || \\UTGERS,     |---------------------------*O*---------------------------
>>> ||_// the State   |         Ryan Novosielski - novos...@rutgers.edu
>>> || \\ University | Sr. Technologist - 973/972.0922 (2x0922) ~*~ RBHS Campus
>>> ||  \\    of NJ   | Office of Advanced Research Computing - MSB A555B, 
>>> Newark
>>>      `'
>>> 
>>>> On Jan 9, 2024, at 16:24, Jarrod Johnson <jjohns...@lenovo.com> wrote:
>>>> 
>>>> In what context do you find use of  ipmitool with '-C'?  I was checking 
>>>> the ipmi console backend and it doesn't seem to have that.
>>>> 
>>>> rpower and such should try SHA256, fallback to SHA1 (equivalent to -C 3)
>>>> 
>>>> The ipmi backend for conserver, if used, doesn't currently attempt a -C 17 
>>>> that I see.  Newer ipmitool should try 17 and fallback to 3, if that's the 
>>>> issue.
>>>>   
>>>> From: David Johnson <david_john...@brown.edu 
>>>> <mailto:david_john...@brown.edu>>
>>>> Sent: Tuesday, January 9, 2024 11:53 AM
>>>> To: xcat-user@lists.sourceforge.net 
>>>> <mailto:xcat-user@lists.sourceforge.net> <xcat-user@lists.sourceforge.net 
>>>> <mailto:xcat-user@lists.sourceforge.net>>
>>>> Subject: [External] [xcat-user] Ipmitool support for old BMC cipher suite 3
>>>>  
>>>> I’d like to know if there is an option somewhere in xcat to choose -C 3 
>>>> for either selected elderly nodes that don’t support suite 17, or use -C 3 
>>>> by default for the whole cluster? Thanks!
>>>>   -- ddj
>>>> Dave Johnson
>>>> 
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