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

intelmark
Employee
2,935 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

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Imtiaz
Employee
2,922 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

 

 

 

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intelmark
Employee
2,918 Views

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

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Gopika_Intel
Moderator
2,894 Views

Hi,

 

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

 

Regards

Gopika


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intelmark
Employee
2,884 Views

yes, you can discontinue.  thx

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Imtiaz
Employee
2,874 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.

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Gopika_Intel
Moderator
2,842 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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