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Re: remote xterm's can't open display after upgrade
- From: "J. Offerman" <jofferman at gmail dot com>
- To: cygwin-xfree <cygwin-xfree at cygwin dot com>
- Date: Fri, 12 Dec 2014 14:03:22 -0800
- Subject: Re: remote xterm's can't open display after upgrade
- Authentication-results: sourceware.org; auth=none
- References: <1716391920 dot 60507 dot 1418322712630 dot JavaMail dot yahoo at jws10765 dot mail dot gq1 dot yahoo dot com> <5489ED06 dot 5040606 at dronecode dot org dot uk>
- Reply-to: cygwin-xfree at cygwin dot com
Instead of bothering with the nolisten option and running
$ ssh centos6
Just do this:
$ ssh -Y centos6
without touching the xserver option. That's what Jon meant. I also
stumbled upon this awhile back and pulled my hair(from whereever I
still got them).
On Thu, Dec 11, 2014 at 11:14 AM, Jon TURNEY
> On 11/12/2014 18:31, Don Webster wrote:
>> I needed to upgrade gs to gs 9.15, so I ran setup yesterday. It
>> wanted to update a whole bunch of stuff, including X. OK, fine, I
>> hadn't updated cygwin in quite a while, and I had other stuff to do.
>> After the upgrade, I can't display remote xterms. OK, my old X
>> shortcut didn't work, but I found "XWin Server" and pinned it to my
>> task bar. I launch that and I have the X server running, and a local
>> xterm pops up. I ssh into my linux server, and run my xterm, and get
>> "can't open display". I did these steps.
>> - turned off my Windows Firewall (I am on a safe, local network). -
>> launched XWin Server.
>> In the xterm that popped up:
>> dcw@dcwdt02 ~
>> $ xhost +
>> access control disabled, clients can connect from any host
>> dcw@dcwdt02 ~
>> $ ssh centos6
>> Last login: Wed Dec 10 16:31:16 2014 from dcwdt02
>> centos6% setenv DISPLAY 10.11.22.33:0.0 # I use tcsh
>> centos6% xterm
>> xterm Xt error: Can't open display: 10.11.22.33:0.0
>> Is there something obvious?
> The relevant part is "startx and startxwin now pass '-nolisten tcp' to the
> server by default, which increases security in the X server by not opening a
> port to TCP connections. The '-listen' flag can be passed as a server
> argument to override this."
> Your choices are to add the '-listen' flag to the startxwin invocation, or
> (better) to use 'ssh -Y' and not explicitly set DISPLAY (See
> Jon TURNEY
> Volunteer Cygwin/X X Server maintainer
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