This happens recurrently to me, usually after significant updates. The last time was some months ago, so I forget exactly what I did, but it involved the location of xauth and the ssh config on the target machine, if I recall correctly.
So that's where I would start to google, (and will, the next time I have this issue). I hope this helps. Ken On 2018-02-16, at 10:33 AM, Gustavo Seabra wrote: > Hi all, > > I understand this may not be a real Macports problem, but I suspect someone > here may know the solution. I have googled a bit about this, but the > solutions I found do not really apply to that problem. Here it is: > > I have 3 machines: > > A: My Mac > B: A Unix machine that serves as firewall to other computers > C: The computer I want to access. > > SO, If I do: > > A]$ ssh -Y B > B]$ echo $DISPLAY > localhost:10.0 > B]$ xmgrace > > I get a nice window from xmgrace, as expected. > > However, If I try to open xmgrace from C using B as a jump, I get: > > A]$ ssh -Y B > B]$ echo $DISPLAY > localhost:10.0 > B]$ ssh -Y C > C]$ echo $DISPLAY > localhost:10.0 > C]$ xmgrace > Can't open display > Failed initializing GUI, exiting > C]$ > > I suspect there’s something ill-configured in C, but don’t know what could it > be or where to look. Could someone there please help me here? > > Thanks, > — > Gustavo Seabra. > > >
