I was uncomfortable with libssh because, under the hood, it's going to require
OpenSSL. TigerVNC is already difficult to build and has really become more the
province of O/S distributors because of its onerous build requirements. I'm the
guy who used to generate project binaries, and yet I had difficulty building
the code in trunk. Using OpenSSL isn't such a big deal it you're releasing
TigerVNC for a specific platform and can take advantage of the system
libraries. But it creates difficulties when trying to create a cross-platform
version of TigerVNC. But given that I'm no longer with the project and no
longer generating cross-platform project binaries, it really doesn't matter to
me anymore what you guys do. I'm just offering up the suggestion that adding a
dependency on libssh may make the build even more onerous and further turn off
potential contributors. Given that Cendio is the only active developer, the
only things that get tested are things they care about, so libssh functionality
would have to be maintained by someone else.
Personally, I prefer -via calling an external SSH executable on Un*x and
Windows, and that's the route we're taking with TurboVNC. We supply a build of
PLink with the vncviewer executable, but the feature (once completed) will
allow you to override that with, for instance, Cygwin OpenSSH.
On Jan 20, 2013, at 2:37 PM, Eric Stadtherr <estadth...@gmail.com> wrote:
> All,
>
> My project uses the "-via" capability extensively in our display architecture
> on Red Hat, so I'm very interested in ensuring that functionality persists in
> the new viewer. I've worked on the -via code in the old viewer before, and am
> very familiar with how it works. I'm more than willing to add the feature to
> the new viewer, but I want to make sure I'm not duplicating effort. Is anyone
> else working on this capability?
>
> If I go ahead with it, I could implement it a couple different ways:
> spawn an "ssh" executable as a child with a port tunnelled to the remote VNC
> port (the way the old viewer did it). This works fine on Unix (assuming the
> TCP port is handled correctly), but isn't really portable to Windows since
> there isn't a standard ssh command line tool.
> integrate SSH as a library (such as with the OpenSSH library). I
> actually did this to the old viewer, but DRC was uncomfortable adding another
> library dependency at the time. That's the drawback - another 3rd party
> library dependency.
> I'd welcome everyone's opinion on approaches.
> Thanks,
> Eric
>
> On 09/17/2012 02:37 PM, Robert Goley wrote:
>> The only full featured viewer for TigerVNC is currently the java viewer. It
>> has the SSH tunneling and TLS capabilities. The command line is slightly
>> changed but a quick script could be written to pass variables using the old
>> syntax. Hope this gives you a better work around than sticking with the
>> older viewer.
>>
>> Robert
>>
>> On 09/17/2012 03:59 PM, SourceForge.net wrote:
>>>
>>> Feature Request Tracker item #3552744, was opened at 2012-07-31 12:40
>>> Message generated for change (Comment added) made by ikelos
>>> You can respond by visiting:
>>> https://sourceforge.net/tracker/?func=detail&atid=1126849&aid=3552744&group_id=254363
>>>
>>> Please note that this message will contain a full copy of the comment
>>> thread,
>>> including the initial issue submission, for this request,
>>> not just the latest update.
>>> Category: FLTK viewer
>>> Group: None
>>> Status: Open
>>> Resolution: None
>>> Priority: 5
>>> Private: No
>>> Submitted By: Havin_it (havinit)
>>> Assigned to: Pierre Ossman (ossman_)
>>> Summary: FLTK Viewer: reinstate -via functionality
>>>
>>> Initial Comment:
>>> I note the discussion of this issue in #3429667, so this is just putting on
>>> record that someone is interested in seeing the feature return.
>>>
>>> As a sidenote, the vncviewer manpage (on Gentoo, user-submitted 1.2.0
>>> ebuild) currently still lists the -via option. If the feature does return,
>>> I submit that the description could do with some clarification on how to
>>> correctly use it for complex use-cases, e.g. non-standard SSH or
>>> local/remote bound VNC ports, or specifying the username on the gateway
>>> host. I had to resort to a lot of googling and trial-and-error for my
>>> use-case (which combines all of the above!) ... before finally learning the
>>> feature wasn't actually implemented :/
>>>
>>> ----------------------------------------------------------------------
>>>
>>> Comment By: Mike Auty (ikelos)
>>> Date: 2012-09-17 12:59
>>>
>>> Message:
>>> It's a shame this isn't a priority at Cendio. Ever since the auth bypass
>>> in realvnc, I assume most users deny access to the server apart from
>>> localhost, and therefore rely on the via option for quick and easy access
>>> to their servers. I guess I'll be staying at 1.1.0, since the changes
>>> won't likely have as much of an effect on my productivity as removing the
>>> via option will, which is a pity...
>>>
>>> ----------------------------------------------------------------------
>>>
>>> You can respond by visiting:
>>> https://sourceforge.net/tracker/?func=detail&atid=1126849&aid=3552744&group_id=254363
>>>
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>>> _______________________________________________
>>> Tigervnc-devel mailing list
>>> Tigervnc-devel@lists.sourceforge.net
>>> https://lists.sourceforge.net/lists/listinfo/tigervnc-devel
>>
>> --
>> Robert Goley
>>
>> FOSS Implementation Specialist
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>>
>>
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>>
>>
>> _______________________________________________
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>> https://lists.sourceforge.net/lists/listinfo/tigervnc-devel
>
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