title: VS Code Remote SSH not working for server with duo factor authorization
body: <p>I'm trying to use VS Code's Remote SSH to work on a server node. However, said server node has duo factor authentication. And whenever I try to connect:</p>
  <blockquote>
  <p>ssh coe62815@birch-gw1.hpccoe.rdlabs.ext.hpe.com</p>
  </blockquote>
  <p>I get these errors as shown from the terminal output:</p>
  <pre><code>        This system is for the use of authorized users only. Individuals
          using this computer system are subject to having all of their
          activities on this system monitored and recorded by system
          personnel. All use of this system is subject to the HPE
          Acceptable Use Policy and Confidential Data Policy.
  
  Password:
  Duo two-factor login for coe62815
  
  Enter a passcode or select one of the following options:
  
   1. Duo Push to XXX-XXX-3262
  
  Passcode or option (1-1): 1
  63ffe9e60334: running
  Acquiring lock on /home/users/coe62815/.vscode-server/bin/83bd43bc519d15e50c4272c6cf5c1479df196a4d/vscode-remote-lock.coe62815.83bd43bc519d15e50c4272c6cf5c1479df196a4d
  Found existing installation at /home/users/coe62815/.vscode-server/bin/83bd43bc519d15e50c4272c6cf5c1479df196a4d...
  Checking /home/users/coe62815/.vscode-server/.83bd43bc519d15e50c4272c6cf5c1479df196a4d.log and /home/users/coe62815/.vscode-server/.83bd43bc519d15e50c4272c6cf5c1479df196a4d.pid for a running server
  Looking for server with pid: 92522
  Found running server...
  
  *
  * Reminder: You may only use this software with Visual Studio family products, 
  * as described in the license (https://go.microsoft.com/fwlink/?linkid=2077057)
  *
  
  Checking server status on port 34455 with curl
  63ffe9e60334: start 
  SSH_AUTH_SOCK====   
  DISPLAY====
  webUiAccessToken====
  listeningOn==34455==
  osReleaseId==sles==
  arch==x86_64==
  tmpDir==/run/user/62815==
  platform==linux==
  unpackResult====
  didLocalDownload==0==
  downloadTime====
  installTime====
  extInstallTime====
  serverStartTime====
  connectionToken==6335be4c-b6b5-48ac-a43d-4d5f83c48004==
  63ffe9e60334: end
  channel 3: open failed: connect failed: Connection refused
  channel 4: open failed: connect failed: Connection refused
  </code></pre>
  <p>I can connect just fine with Cygwin and just about any other terminal on MacOS/Ubuntu. For some reason this will not let me do it.</p>
  <p>Any feedback appreciated</p>