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Altera_Forum
Honored Contributor I
891 Views

Can't SSH to Arria 10 Dev Board

I just received our Arria 10 Dev Boards and I'm running through the quick start guide. I can get to the web interface and blink some lights and change the LCD message. I tried to SSH to it and the following happened: 

 

$ ssh root@192.168.0.21The authenticity of host '192.168.0.21 (192.168.0.21)' can't be established. 

ECDSA key fingerprint is SHA256:6Roa+AUDD3RyzVleUJS04lWWt7tdVvD1LrZBkHTwADE. 

Are you sure you want to continue connecting (yes/no)? y 

Please type 'yes' or 'no': yes 

Warning: Permanently added '192.168.0.21' (ECDSA) to the list of known hosts. 

Connection to 192.168.0.21 closed by remote host. 

Connection to 192.168.0.21 closed. 

 

All subsequent attempts end the same: 

 

$ ssh root@192.168.0.21 

Connection to 192.168.0.21 closed by remote host. 

Connection to 192.168.0.21 closed. 

 

Any idea what's happening?
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2 Replies
Altera_Forum
Honored Contributor I
125 Views

Try to add some -v's to get more verbose debug output: 

 

ssh -vvv -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null root@192.168.0.21  

You can also see if you get any response from the server using telnet or netcat: 

nc 192.168.0.21 22  

You should see something like: 

SSH-2.0-OpenSSH_7.5p1-hpn14v12 

 

depending upon the ssh version you hav running on your board.
PJais1
Novice
125 Views

Hello , i am facing same error.On entering the command :

 ssh -vvv -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null root@192.168.1.10

OpenSSH_6.6.1, OpenSSL 1.0.1f 6 Jan 2014

debug1: Reading configuration data /etc/ssh/ssh_config

debug1: /etc/ssh/ssh_config line 19: Applying options for *

debug2: ssh_connect: needpriv 0

debug1: Connecting to 192.168.1.10 [192.168.1.10] port 22.

debug1: Connection established.

debug3: Incorrect RSA1 identifier

debug3: Could not load "/home/bmit/.ssh/id_rsa" as a RSA1 public key

debug1: identity file /home/bmit/.ssh/id_rsa type 1

debug1: identity file /home/bmit/.ssh/id_rsa-cert type -1

debug3: Incorrect RSA1 identifier

debug3: Could not load "/home/bmit/.ssh/id_dsa" as a RSA1 public key

debug1: identity file /home/bmit/.ssh/id_dsa type 2

debug1: identity file /home/bmit/.ssh/id_dsa-cert type -1

debug3: Incorrect RSA1 identifier

debug3: Could not load "/home/bmit/.ssh/id_ecdsa" as a RSA1 public key

debug1: identity file /home/bmit/.ssh/id_ecdsa type 3

debug1: identity file /home/bmit/.ssh/id_ecdsa-cert type -1

debug1: identity file /home/bmit/.ssh/id_ed25519 type -1

debug1: identity file /home/bmit/.ssh/id_ed25519-cert type -1

debug1: Enabling compatibility mode for protocol 2.0

debug1: Local version string SSH-2.0-OpenSSH_6.6.1p1 Ubuntu-2ubuntu2.13

debug1: Remote protocol version 2.0, remote software version OpenSSH_7.8

debug1: match: OpenSSH_7.8 pat OpenSSH* compat 0x04000000

debug2: fd 3 setting O_NONBLOCK

debug3: load_hostkeys: loading entries for host "192.168.1.10" from file "/dev/null"

debug3: load_hostkeys: loaded 0 keys

debug1: SSH2_MSG_KEXINIT sent

and it hangs after this command.

 

Also by entering :  nc 192.168.1.10 22 , the terminal shows following output.

SSH-2.0-OpenSSH_7.8

 

Could you help with above query?

 

Thanks,

Priya

 

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