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Differences between Default SSH engine and Compatibility Mode

Votes:

0

Hello,

after the update to 16.3.24.4980 and the implementation of the new Default SSH engine our SSH Disk Free sensors stopped working on SUSE Linux Release 11.

The switch back to the old Compatibility Mode fixed this for the time being, but with the impending removal of this option we want to get the new SSH engine working.

What are the key differences between the two engines and what are possible options to get the new engine working? Do we need to configure anything on the host? Any troubleshooting tips would be very helpful.

Thank you for your help

ssh ssh-engine update

Created on Jul 19, 2016 6:46:16 AM



5 Replies

Votes:

0

Hello,

Thank you very much for your KB-Post. The most important difference between the two engines is that the newer engine supports more and newer ciphers for encryption. To further troubleshoot this, can you please send us the exact error message that you get, when you run these SSH Sensors with the new engine?

best regards.

Created on Jul 19, 2016 11:13:54 AM by Torsten Lindner [Paessler Support]



Votes:

0

Hello,

thanks for the quick reply.

The error message is

"Failed to connect. Please check the SSH log of the target device or try the Compatibility Mode of the sensor's SSH engine and consider updating the target system's operating system. Reason: auth_password failedAccess denied. Authentication that can continue: publickey,keyboard-interactive".

Created on Jul 19, 2016 11:24:15 AM



Votes:

0

For further troubleshooting and improving the new engine, please send all the details we can get (Sensor Results to disk + probe logs + sshd logs + sshd config), with the default (new) SSH engine set. Send this via email to [email protected] with a reference to this KB-Thread.

Created on Jul 20, 2016 10:23:22 AM by Torsten Lindner [Paessler Support]



Votes:

0

I am having the exact same Issue on an SLES 11 SP3 Server, has there been any progress regarding this?

Created on Feb 17, 2017 7:23:43 PM



Votes:

0

gfontes, to be able to better troubleshoot your issue, please send all the details we can get (Sensor Results to disk + probe logs + sshd logs + sshd config), with the default (new) SSH engine set. Send this via email to [email protected] with a reference to this KB-Thread.

Created on Feb 20, 2017 8:41:59 AM by Torsten Lindner [Paessler Support]




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