macports-users Digest, Vol 138, Issue 15

[James Linder]

> On 20 Feb 2018, at 8:00 pm, macports-users-request at lists.macports.org wrote:
> 
>> 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?

I found a bunch of X11 localhost configs in /etc/ssh/ssh_config that can/must be changed.
My 27” takes long for the first connection
My laptop is always fast 
????
James