[clue] 'Export display' question

[Quentin Hartman]

Oh, and you'll probably need xauth and xvfb installed on the Linux box to
get x forwarding working.

This page has a discussion that might be relevant, if you haven't already
found it:

http://unix.stackexchange.com/questions/76113/x11-forwarding-not-working-from-putty-and-xming-to-centos-6-4


On Thu, Feb 27, 2014 at 10:25 AM, <foo7775 at comcast.net> wrote:

> Thank you Quentin, it's worth a try.  Will update with results.
>
> T.
> ------------------------------
> *From: *"Quentin Hartman" <qhartman at gmail.com>
> *To: *"CLUE's mailing list" <clue at cluedenver.org>
> *Sent: *Thursday, February 27, 2014 10:14:59 AM
> *Subject: *Re: [clue] 'Export display' question
>
>
> According to
> http://www.sharpusa.com/ForBusiness/DocumentSystems/MFPsPrinters/MXM503.aspxthat printer claims to support PCL6 and may support Postscript, so you
> could try using a generic PCL or Postcript driver using a standard port
> 9100 network printer config. It may "just work". I've done that countless
> times to get "unsupported" printers to work in Linux. You lose some of the
> fancier options, but they spit out pages just fine.
>
>
> On Thu, Feb 27, 2014 at 9:39 AM, <foo7775 at comcast.net> wrote:
>
>> Hi guys, I have a problem with a serious time component.
>>
>> Trying to run a Sharp printer install routine on a "cmdline-only" RHEL
>> 6.4 system *(no Xwindows installed)*.  My connection is via SSH over
>> PuTTY from my Win7 workstation *(through a VPN)*.  When I run ./setup,
>> the routine returns 'Can't open display'.  I've enabled X11 forwarding
>> within PuTTY, and entered "<wkstn IP addr>:0.0" in the 'X display location'
>> blank.  Also tried it with "<wkstn IP addr>:0", same result.
>>
>>   One popular suggestion that I've found on many pages is to enter 'xhost
>> +' at the command line - but since this server doesn't have X installed,
>> there is no xhost.
>>
>>   I've then installed Xming on my workstation, configured it as per
>> www.nth-design.com/2010/05/19/x11-putty-xming/ precisely.
>>
>> Wasn't quite sure if I had to make a corresponding change on the server,
>> so I tried entering "export display <wkstn IP addr>:0.0" on the RHEL box,
>> then running setup again.  No luck.  Also tried it with "export display
>> <wkstn IP addr>:0", same result.
>>
>> Looked around for a bit more information, found this page (
>> http://www.doxer.org/learn-linux/use-xming-xshell-to-display-linux-gui-to-windows-desktop-x11-forwarding/)
>> which changed the observed behavior a bit - *now* when I run setup, it
>> pauses for maybe 20-30 seconds before returning the 'Can't open display'
>> error *(which leads me to suspect that at least the server-side of the
>> equation might be working correctly now)*.
>>
>> The setup routine is a binary, so it's opaque to me.
>>
>> X11 forwarding is enabled within the sshd_config file.  /var/log/messages
>> contains no entries from today.
>>
>> The Windows firewall has an exception to allow XMing via the 'Private'
>> network types, but *not* through domain types, so that could be an issue *(I'm
>> currently unable to toggle that, suspect it's managed by either the
>> security team or 'desktops/wkstn' team)*.  (I've sent an email to the
>> company directors who are emphasizing the time pressure, with any luck
>> they'll be able to get me past *that* speed bump.)
>>
>> The Xming log contains this snippet, which *seems* to indicate that it
>> thinks that everything on my Win7 box is OK:
>>
>> winInitMultiWindowWM - DISPLAY=127.0.0.1:0.0
>> winMultiWindowXMsgProc - DISPLAY=127.0.0.1:0.0
>> winProcEstablishConnection - Hello
>> winInitClipboard ()
>> winProcEstablishConnection - winInitClipboard returned.
>> winClipboardProc - Hello
>> DetectUnicodeSupport - Windows Vista
>> winClipboardProc - DISPLAY=127.0.0.1:0.0
>> winMultiWindowXMsgProc - XOpenDisplay () returned and successfully opened
>> the display.
>> winInitMultiWindowWM - XOpenDisplay () returned and successfully opened
>> the display.
>> winClipboardProc - XOpenDisplay () returned and successfully opened the
>> display.
>>
>>
>> To be quite honest, I *don't care* about running the setup routine, if I
>> could get the printers installed another way - but the foomatic info that
>> I've seen this server doesn't list a Sharp MX-503N, & I haven't been able
>> to find any other, compatible models that I could try.
>>
>> I'd sure be grateful for any help/suggestions, etc.  TIA.
>>
>> T,.
>>
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>
>
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