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Posted to user@vcl.apache.org by Henry Schaffer <he...@ncsu.edu> on 2013/09/11 20:33:49 UTC
more on RDP
In looking into the use of Linux images in the VCL and using xRDP to allow
Windows and Mac users to access the images in their usual way - RDP Client,
I've come across two more RDP Client products, both Open Source.
CoRD http://cord.sourceforge.net/ for Macs. (I can't figure out what the
acronym stands for!)
FreeRDP http://www.freerdp.com/ which has free Android and iOS ports
available. (It would be good to hear of any experiences with this, as more
and more students have mobile devices.)
--henry schaffer
Re: FW: more on RDP
Posted by Jeffrey Kirby <Je...@marist.edu>.
Delete your VCL-related cookies and try again. Alternately, try a
different browser.
cheers
jeff
From: Keenan Martinez <k....@lokjackgsb.edu.tt>
To: "user@vcl.apache.org" <us...@vcl.apache.org>,
Date: 09/13/2013 01:39 AM
Subject: FW: more on RDP
Issues with VCL login.
I am have issues logging in with the VCL admin account. When I enter the
password it just redirects me back to the main page HELP….
____________________________________________________________________
CONFIDENTIALITY: This email (including any attachments) may contain
confidential, proprietary and/or privileged information. Any duplication,
copying, distribution, dissemination, transmission, disclosure or use in
any manner of this email (including any attachments) without the
authorisation of the sender is strictly prohibited. If you receive this
email (including any attachments) in error, please notify the sender and
delete this email (including any attachments) from your system. Thank you.
Re: more on RDP
Posted by Keenan Martinez <k....@lokjackgsb.edu.tt>.
Hi all,
Thanks for the great support. When I changed browsers I was able to login.
Regards,
Keenan Martinez
Ag. Manager
I.T. Department
Arthur Lok Jack Graduate School of Business
Max Richards Drive, Uriah Butler Highway, North West, Mt. Hope
€ (868) 645-6700 ext 333 € (868) 662 1411 (fax) €
k.martinez@lokjackgsb.edu.tt <ma...@lokjackgsb.edu.tt>€
www.lokjackgsb.edu.tt <http://www.lokjackgsb.edu.tt/>
€support@lokjackgsb.edu.tt
On 9/13/13 10:16 AM, "Aaron Peeler" <aa...@ncsu.edu> wrote:
>Keenan,
>
>What happens on your testsetup.php page? Any warnings?
>
>https://my.server.org/vcl/testsetup.php
>
>Change out my.server.org with the address of your server.
>
>Aaron
>
>On Thu, Sep 12, 2013 at 7:24 PM, Keenan Martinez
><k....@lokjackgsb.edu.tt> wrote:
>> Issues with VCL login.
>>
>> I am have issues logging in with the VCL admin account. When I enter the
>> password it just redirects me back to the main page HELPŠ.
>> ____________________________________________________________________
>> CONFIDENTIALITY: This email (including any attachments) may contain
>> confidential, proprietary and/or privileged information. Any
>>duplication,
>> copying, distribution, dissemination, transmission, disclosure or use
>>in any
>> manner of this email (including any attachments) without the
>>authorisation
>> of the sender is strictly prohibited. If you receive this email
>>(including
>> any attachments) in error, please notify the sender and delete this
>>email
>> (including any attachments) from your system. Thank you.
>
>
>
>--
>Aaron Peeler
>Program Manager
>Virtual Computing Lab
>NC State University
>
>All electronic mail messages in connection with State business which
>are sent to or received by this account are subject to the NC Public
>Records Law and may be disclosed to third parties.
____________________________________________________________________ CONFIDENTIALITY: This email (including any attachments) may contain confidential, proprietary and/or privileged information. Any duplication, copying, distribution, dissemination, transmission, disclosure or use in any manner of this email (including any attachments) without the authorisation of the sender is strictly prohibited. If you receive this email (including any attachments) in error, please notify the sender and delete this email (including any attachments) from your system. Thank you.
Re: FW: more on RDP
Posted by Aaron Peeler <aa...@ncsu.edu>.
Keenan,
What happens on your testsetup.php page? Any warnings?
https://my.server.org/vcl/testsetup.php
Change out my.server.org with the address of your server.
Aaron
On Thu, Sep 12, 2013 at 7:24 PM, Keenan Martinez
<k....@lokjackgsb.edu.tt> wrote:
> Issues with VCL login.
>
> I am have issues logging in with the VCL admin account. When I enter the
> password it just redirects me back to the main page HELP….
> ____________________________________________________________________
> CONFIDENTIALITY: This email (including any attachments) may contain
> confidential, proprietary and/or privileged information. Any duplication,
> copying, distribution, dissemination, transmission, disclosure or use in any
> manner of this email (including any attachments) without the authorisation
> of the sender is strictly prohibited. If you receive this email (including
> any attachments) in error, please notify the sender and delete this email
> (including any attachments) from your system. Thank you.
--
Aaron Peeler
Program Manager
Virtual Computing Lab
NC State University
All electronic mail messages in connection with State business which
are sent to or received by this account are subject to the NC Public
Records Law and may be disclosed to third parties.
Re: FW: more on RDP
Posted by Josh Thompson <jo...@ncsu.edu>.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Keenan,
We're happy to help anyone with VCL problems, but know it would be useful to
give a little more info about your problem when asking for help such as what
version of VCL you have installed, any error messages you are seeing, and what
steps you've taken to debug the problem already. Here are a few things to
look at based on what you did provide.
Check COOKIEDOMAIN in your conf.php file and make sure you have something
valid set for it. If you are accessing your VCL system using an IP address,
set COOKIEDOMAIN to an empty string.
Did you change anything in the $authMechs array in conf.php? For the local
accounts, the key has to be "Local Account" and the "type" has to be set to
"local".
Have you loaded the testsetup.php page to make sure it did not find any
errors?
Let us know what you find.
Josh
On Thursday, September 12, 2013 11:24:43 PM Keenan Martinez wrote:
> Issues with VCL login.
>
> I am have issues logging in with the VCL admin account. When I enter the
> password it just redirects me back to the main page HELP....
> ____________________________________________________________________
> CONFIDENTIALITY: This email (including any attachments) may contain
> confidential, proprietary and/or privileged information. Any duplication,
> copying, distribution, dissemination, transmission, disclosure or use in
> any manner of this email (including any attachments) without the
> authorisation of the sender is strictly prohibited. If you receive this
> email (including any attachments) in error, please notify the sender and
> delete this email (including any attachments) from your system. Thank you.
- --
- -------------------------------
Josh Thompson
VCL Developer
North Carolina State University
my GPG/PGP key can be found at pgp.mit.edu
All electronic mail messages in connection with State business which
are sent to or received by this account are subject to the NC Public
Records Law and may be disclosed to third parties.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.19 (GNU/Linux)
iEYEARECAAYFAlIzDCIACgkQV/LQcNdtPQM6NgCeMrxdw528hUorajZIhEsVx0mb
0voAnjjvZAfPSdzlav4ct6Rrzw4Uayti
=vs/M
-----END PGP SIGNATURE-----
FW: more on RDP
Posted by Keenan Martinez <k....@lokjackgsb.edu.tt>.
Issues with VCL login.
I am have issues logging in with the VCL admin account. When I enter the password it just redirects me back to the main page HELP....
____________________________________________________________________ CONFIDENTIALITY: This email (including any attachments) may contain confidential, proprietary and/or privileged information. Any duplication, copying, distribution, dissemination, transmission, disclosure or use in any manner of this email (including any attachments) without the authorisation of the sender is strictly prohibited. If you receive this email (including any attachments) in error, please notify the sender and delete this email (including any attachments) from your system. Thank you.
Re: more on RDP
Posted by Aaron Coburn <ac...@amherst.edu>.
(It is a simple Cocoa wrapper around the RDesktop software)
Does this mean it requires that the Mac RDP Client (from Microsoft) be present?
No, CoRD is entirely self contained, and it does not require the Microsoft client.
This is what I tend to use to connect to VCL reservations. The caveat is that audio is not forwarded over the RDP connection, so if audio is an important part of the VCL image, then you will need to use another RDP client.
Audio is important for accessibility. But if JAWS (the most popular screen reader) is installed in the remote computer - I'm not sure how it transmits to the local computer so the local computer can give the audio.
This is correct. My understanding, though, is that in order for JAWS to work in this context, it needs to be installed and running on both the local and the remote machine. And using a Mac as a local machine precludes installing JAWS locally in the first place, hence CoRD becomes a non-issue.
The way JAWS works in this environment is by forwarding the audio over "virtual channels" [1] (sort of like how disks are forwarded over the RDP port). That is, anything the remote JAWS reads is not sent across the RDP channel as standard audio (such as if you were to watch a YouTube video), rather it uses a special segment of the RDP stream that is picked up by the local JAWS software (and it is probably not sending actual audio anyhow -- just some type of encoded instructions in text). The actual audio output is handled by the local JAWS software.
So, assuming that the client machine is Windows and JAWS is installed locally and on the remote image, any RDP client used to connect to the VCL will need to understand these "virtual channels". This mostly means using the built-in RDP client that ships with Windows (i.e. terminal services).
I have also found that transferring large files between the VM and my local machine can occasionally cause CoRD to crash. Otherwise, it is a very nice piece of software.
Thanks, this gives us more information.
Another class of options along this line includes running the RDP connection entirely through a web browser, using an HTML5 client. There are some commercial solutions out there as well as an open source project called guacamole [2]. When I last looked into this, the commercial solutions seemed cost-prohibitive and the open source project was still in alpha, but in looking at their website just now, they appear to have made a lot of progress. Any of these "client-less" RDP connections will require some additional infrastructure for the VCL admin to setup (it works by running an intermediate web application that converts the RDP stream from the VCL session into a WebSockets stream that can be presented on the HTML5 canvas object). I have no idea how (or whether) audio is handled. I also doubt that it would work well for JAWS users -- while you could cut out the "virtual channel" issue, you are left with a local JAWS client needing to extract text from rasterized vector graphics, which probably would not work. Nevertheless, it is an interesting option.
-Aaron
[1] http://msdn.microsoft.com/en-us/library/windows/desktop/aa383509(v=vs.85).aspx
[2] http://guac-dev.org
FreeRDP http://www.freerdp.com/ which has free Android and iOS ports available. (It would be good to hear of any experiences with this, as more and more students have mobile devices.)
--henry schaffer
Re: more on RDP
Posted by Henry Schaffer <he...@ncsu.edu>.
On Wed, Sep 11, 2013 at 3:41 PM, Aaron Coburn <ac...@amherst.edu> wrote:
>
> On Sep 11, 2013, at 2:33 PM, Henry Schaffer <he...@ncsu.edu> wrote:
>
> In looking into the use of Linux images in the VCL and using xRDP to
> allow Windows and Mac users to access the images in their usual way - RDP
> Client, I've come across two more RDP Client products, both Open Source.
>
> CoRD http://cord.sourceforge.net/ for Macs. (I can't figure out what the
> acronym stands for!)
>
>
> CoRD means: Cocoa over RDesktop
>
Thanks, even though I read it used Cocoa, I never would have guess this!
> (It is a simple Cocoa wrapper around the RDesktop software)
>
Does this mean it requires that the Mac RDP Client (from Microsoft) be
present?
>
> This is what I tend to use to connect to VCL reservations. The caveat is
> that audio is not forwarded over the RDP connection, so if audio is an
> important part of the VCL image, then you will need to use another RDP
> client.
>
Audio is important for accessibility. But if JAWS (the most popular
screen reader) is installed in the remote computer - I'm not sure how it
transmits to the local computer so the local computer can give the audio.
> I have also found that transferring large files between the VM and my
> local machine can occasionally cause CoRD to crash. Otherwise, it is a very
> nice piece of software.
>
Thanks, this gives us more information.
--henry
>
> FreeRDP http://www.freerdp.com/ which has free Android and iOS ports
> available. (It would be good to hear of any experiences with this, as more
> and more students have mobile devices.)
>
> --henry schaffer
>
>
>
Re: more on RDP
Posted by Aaron Coburn <ac...@amherst.edu>.
On Sep 11, 2013, at 2:33 PM, Henry Schaffer <he...@ncsu.edu>> wrote:
In looking into the use of Linux images in the VCL and using xRDP to allow Windows and Mac users to access the images in their usual way - RDP Client, I've come across two more RDP Client products, both Open Source.
CoRD http://cord.sourceforge.net/ for Macs. (I can't figure out what the acronym stands for!)
CoRD means: Cocoa over RDesktop
(It is a simple Cocoa wrapper around the RDesktop software)
This is what I tend to use to connect to VCL reservations. The caveat is that audio is not forwarded over the RDP connection, so if audio is an important part of the VCL image, then you will need to use another RDP client. I have also found that transferring large files between the VM and my local machine can occasionally cause CoRD to crash. Otherwise, it is a very nice piece of software.
FreeRDP http://www.freerdp.com/ which has free Android and iOS ports available. (It would be good to hear of any experiences with this, as more and more students have mobile devices.)
--henry schaffer