topic SSH not working - no supported authentication methods available in Network Access Control

SSH not working - no supported authentication methods available

TedB123 — Thu, 22 Jun 2023 11:00:26 GMT

having this error pop up trying to connect to our azure hosted ISE node
v3.2

not sure whats happening here as im sure i was connected via SSH yesterday.
i can access ISE via GUI and the serial console in Azure.

does anybody know how to resolve this?

cheers,

Re: SSH not working - no supported authentication methods available

Mark Elsen — Thu, 22 Jun 2023 12:14:17 GMT

- Make sure to use the latest version of PuTTY , (if not yet done) ; now you may also have the serial console open in Azure when this is tried , perhaps an informative message is or gets displayed ,

Re: SSH not working - no supported authentication methods available

Aref Alsouqi — Thu, 22 Jun 2023 12:50:27 GMT

I think ISE 3.2 in Azure would only allow you SSH into it via the SSH key pair, so you might need to import the key into putty before you can SSH to that box. I can't remember exactly where that should be imported, but I think it is in Connection > Data tab.

Re: SSH not working - no supported authentication methods available

TedB123 — Thu, 22 Jun 2023 14:44:21 GMT

@Aref Alsouqi wrote:
I think ISE 3.2 in Azure would only allow you SSH into it via the SSH key pair, so you might need to import the key into putty before you can SSH to that box. I can't remember exactly where that should be imported, but I think it is in Connection > Data tab.

i had a feeling that i need to import the ssh key pair
its not under connection > Data

it might be under connection -> SSH -> Host Keys ?
there seems to be a couple of spots for this..

i cant find any guide to explain how to configure this

Re: SSH not working - no supported authentication methods available

Aref Alsouqi — Fri, 23 Jun 2023 16:07:10 GMT

I think you are right, it would be in Connection > SSH > Auth and in the Authentication parameters section you browse for the key.

Re: SSH not working - no supported authentication methods available

hslai — Sat, 24 Jun 2023 16:04:37 GMT

@TedB123 : Aref is correct. And Internet has a few guides on it, e.g., Log in to a Linux server with an SSH private key on a Windows client (rackspace)

Re: SSH not working - no supported authentication methods available

TedB123 — Mon, 26 Jun 2023 08:09:50 GMT

@Aref Alsouqi wrote:
I think you are right, it would be in Connection > SSH > Auth and in the Authentication parameters section you browse for the key.

yup i figured it out eventually...

i missed the step where i had to create a .ppk key for putty... as soon as i did that i was able to log in without any issues into ISE.

thanks for all your help.

cheers