Intel® DevCloud
Help for those needing help starting or connecting to the Intel® DevCloud
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ssh connection issues

intelmark
Employee
415 Views

When attempting to connect on Ubuntu OS 18.04 inside the Intel network, I'm seeing the following:

ssh devcloud

ssh: connect to host devcloud.intel.com port 22: Connection timed out
ssh_exchange_identification: Connection closed by remote host

 

I don't believe this system is using a ssh proxy server (is there a way to tell?)

After reviewing other messages, I tried 

proxy-dmz.intel.com:1080

as a ssh proxy server and was able to connect

0 Kudos
6 Replies
Imtiaz
Employee
402 Views

Just wondering if you were able to fix this issue?

Most of the Intel system does use some kind of Proxy, I am seeing the same issue when trying to connect.

ssh devcloud.proxy
nc: read failed (0/3): Broken pipe
kex_exchange_identification: Connection closed by remote host
Connection closed by UNKNOWN port 65535

Host devcloud.proxy
User guest
Hostname devcloud.intel.com
IdentityFile ~/.ssh/devcloud-access-key-XXXXX.txt
LocalForward 4022 c009:22
ProxyCommand nc -x proxy-dmz.intel.com:911 %h %p

 

 

 

intelmark
Employee
398 Views

I used proxy-dmz.intel.com:1080 in the ProxyCommand and it just started working...

Gopika_Intel
Moderator
374 Views

Hi,

 

Thank you for reaching out. As you are able to connect to devcloud now, can we discontinue monitoring this thread?

 

Regards

Gopika


intelmark
Employee
364 Views

yes, you can discontinue.  thx

Imtiaz
Employee
354 Views

Thanks for sharing the port number, do you happen to know why I am getting protocol mismatch and ssh is terminated?

ssh devcloud.proxy
SSH-2.0-OpenSSH_7.6p1 Ubuntu-4ubuntu0.3

Protocol mismatch.


Ncat: Broken pipe.
Connection to devcloud.intel.com closed.

Gopika_Intel
Moderator
322 Views

Hi,

@intelmark Thank you for the confirmation. If you need any additional information, please submit a new question as this thread will no longer be monitored.

@Imtiaz  We request you to raise a new thread. We will be able to assist you further

Regards

Gopika

 

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