On Fri, 1 Jan 2016, Yuri wrote: > I connect from host into the guest VM with X-forwarding (ssh -X), so that > programs launched in the VM will run on the host display. > > X-forwarding works first, but after a while it stops working. Connection (from > inside of the VM) on the corresponding port (6010 or similar) is immediately > closed by the foreign host. Ssh connection itself is okay though. Reconnecting > ssh helps, but later the same thing repeats. > > Why would this be happening? It's probably this: (ssh_config(5)) > ForwardX11Trusted > If this option is set to “yes”, remote X11 clients will have full > access to the original X11 display. > > If this option is set to “no”, remote X11 clients will be consid‐ > ered untrusted and prevented from stealing or tampering with data > belonging to trusted X11 clients. Furthermore, the xauth(1) > token used for the session will be set to expire after 20 min‐ > utes. Remote clients will be refused access after this time. > > The default is “no”. > > See the X11 SECURITY extension specification for full details on > the restrictions imposed on untrusted clients. You can use "ssh -Y" as a shortcut for ForwardX11Trusted=yes _______________________________________________ openssh-unix-dev mailing list openssh-unix-dev@xxxxxxxxxxx https://lists.mindrot.org/mailman/listinfo/openssh-unix-dev
