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RE: (75881) QSECOFR/QP0ZSPWP:PENCOR05 sshd[31757]: fatal: no hostkey alg



fixed

I have the SSHD logging configured and working, production and r&d.
There is an issue that an SSH client request into the iSeries does not always generate a message at QSYSOPR.
I'm using this message as a trigger, (MPLUS), but in its absence, the email/page will not appear.
Does anyone have info on SSH client requests and/or intermittent QSYSOPR messages.

Thanks
Paul

-----Original Message-----
From: Steinmetz, Paul
Sent: Tuesday, February 18, 2014 11:11 AM
To: 'Midrange Systems Technical Discussion'
Subject: RE: (75881) QSECOFR/QP0ZSPWP:PENCOR05 sshd[31757]: fatal: no hostkey alg

Per IBM support, a remote SSH request was made with no key.
There is an optional SSH log for incoming requests, Doc # N1014301. (The SSHD Can Use the UNIX Syslog Facilities for Logging) Does anyone have this logging setup on their iSeries?


-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of John McKee
Sent: Tuesday, February 18, 2014 1:52 AM
To: Midrange Systems Technical Discussion
Subject: Re: (75881) QSECOFR/QP0ZSPWP:PENCOR05 sshd[31757]: fatal: no hostkey alg

I have no idea if this helps or not.

I was able to connect, via ssh, to a desktop computer. The CMOS battery was removed from the desktop computer and replaced after a minute. Then, I could not connect with ssh, as the desktop generated a new key. Once that key was imported, into the computer I was using, I could connect again.

I found this, which is Ubuntu. May not be relevant.

http://askubuntu.com/questions/268272/ssh-refusing-connection-with-message-no-hostkey-alg

But, the above link and my experience with Linux has me wondering if something similar happened to your system. Did some component get replaced or have power removed for an extended period of time? Thus remote sites now no longer have valid public keys to your system?

Wild guess.

John McKee


On Mon, Feb 17, 2014 at 11:16 PM, Steinmetz, Paul <PSteinmetz@xxxxxxxxxx>wrote:

Received 3 of these this evening at 18:10.
1) Is there anyway of confirming who or what is trying to connect?
2) why the failure messages?
3) what is the reason for the message and/or failure?

(75881) QSECOFR/QP0ZSPWP:PENCOR05 sshd[31757]: fatal: no hostkey alg
(75890) QSECOFR/QP0ZSPWP:PENCOR05 sshd[31758]: fatal: no hostkey alg
(75899) QSECOFR/QP0ZSPWP:PENCOR05 sshd[31759]: fatal: no hostkey alg

Also, MPLUS auto notified (email and/or text) of the above failure.

Thank You
_____
Paul Steinmetz
IBM i Systems Administrator

Pencor Services, Inc.
462 Delaware Ave
Palmerton Pa 18071

610-826-9117 work
610-826-9188 fax
610-349-0913 cell
610-377-6012 home

psteinmetz@xxxxxxxxxx
http://www.pencor.com/
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