Jon, That worked! Thank you! Your awesomeness is awesome.
I just edited /usr/bin/startxwin to have: #listenarg="-nolisten tcp"listenarg="" I think you were suggesting a more elegant solution, that I didn't grasp. I don't know if this is worthy of adding to the Upgrade section of the FAQ, because I did look there (and several other places) before posting in this forum. Thanks again. You're the best. don.. ----- Original Message ----- From: Jon TURNEY <[email protected]> To: [email protected] Cc: [email protected] Sent: Thursday, December 11, 2014 2:14 PM Subject: Re: remote xterm's can't open display after upgrade 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 > centos6% > > Is there something obvious? https://cygwin.com/ml/cygwin-xfree/2014-11/msg00029.html 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 http://x.cygwin.com/docs/ug/using-remote-apps.html#using-remote-apps-ssh) -- Jon TURNEY Volunteer Cygwin/X X Server maintainer -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://x.cygwin.com/docs/ FAQ: http://x.cygwin.com/docs/faq/
