Re: [ice-dev] ICE Remote VisIt connection error

[Greg Watson <greg@watson.earth>]

There is no error output. A password dialog is displayed. I enter the password, and the dialog just comes back again.

Gordon is just regular ssh, it doesn’t use OTP.

Are you trying to tunnel over ssh? What ports need to be forwarded?

Greg

> On Jul 13, 2016, at 6:58 PM, Harinarayan Krishnan <hkrishnan@xxxxxxx> wrote:
> 
> Hi all,
> 
> 1. What does the error output look like?
> I am not sure why the password would not be honored. Is Gordon OTP or
> can an SSH key version be tested?
> 
> A simple test might be to manually create an SSH tunnel and forward
> the appropriate ports from the VisIt server. Then on the client side
> do a direct connection to localhost:<forwarded port>
> 
> Best regards,
> Hari
> 
> 
> On Wed, Jul 13, 2016 at 11:53 AM, McCaskey, Alex <mccaskeyaj@xxxxxxxx> wrote:
>> Ok that’s good to know. We’ll see if Hari has any further insight then.
>> 
>> Alex
>> 
>> On Jul 13, 2016, at 2:51 PM, Greg Watson <greg@watson.earth> wrote:
>> 
>> Alex,
>> 
>> I’m not able to connect from my machine (outside the ORNL network) to either
>> a TACC machine or an SDSC machine, so I don’t think this is a proxy issue.
>> 
>> The problem is that the connection just keeps asking for a password, even if
>> the correct one is entered.
>> 
>> Greg
>> 
>> On Jul 13, 2016, at 2:40 PM, McCaskey, Alex <mccaskeyaj@xxxxxxxx> wrote:
>> 
>> Hey Hari,
>> 
>> We are giving an ICE tutorial at the XSEDE conference next week. Part of
>> that tutorial will be demonstrating a remote VisIt connection from ICE to
>> XSEDE resources. However as of now, the remote connection mechanism as part
>> of the visit_java_client is not working when we connect to those resources
>> from within the ORNL internal network. We’re able to connect to machines
>> within the network, but not without. My guess is the visit remote connection
>> is not taking into account our ssh proxy server. Please see Robert’s
>> detailed email below on what he’s found.
>> 
>> Any thoughts on this, and would you be able to help us out? I think it may
>> require a small modification to the visit_java_client.
>> 
>> Best,
>> 
>> Alex
>> 
>> Begin forwarded message:
>> 
>> From: "Smith, Robert W." <smithrw@xxxxxxxx>
>> Subject: VisIt connection info
>> Date: July 13, 2016 at 2:35:32 PM EDT
>> To: "McCaskey, Alex" <mccaskeyaj@xxxxxxxx>
>> 
>> Alex,
>> 
>> I'm able to connect remotely to all of Bohr (my Mac desktop), Megafluffy,
>> and Habilis. However, attempting to connect to Gordon or Stampede we've been
>> getting into a loop where the password dialog keeps popping up without the
>> authentication ever passing.
>> 
>> When this became an issue for ParaView, I think the fix was adding
>> session.setConfig("PreferredAuthentications",
>> "privatekey,password,keyboard-interactive"); so that the session could
>> handle the multiple different ways the server might specify the the password
>> authentication. When you're emailing Hari, you can suggest that he add that
>> line in the launch method of VisItSwtConnection in the VisIt Java client to
>> see if that makes a difference.
>> 
>> Robert
>> 
>> 
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