ssh problems

[Rodney K]

Hi Jeffrey,

I understand now...I think. But since I am using Road Runner with a dynamic 
IP, that would mean that I would have to add an entry each time I get a new 
IP address?

Thanks for the explanation. Explanations are good, I think you should keep 
doing it. Understanding why something doesn't work is very important...that 
way if the same problem should occur later on, I would know what the problem 
is and hopefully be able to fix it.

Rodney


On Thursday 04 October 2001 04:48 am, you wrote:
> Okay, here is what is happening:
>
> When you ssh into dhcp-196-36 with X forwarding turned on, ssh creates
> (for lack of a better name) a virtual x client ( or server, I seem to
> recall X reverses what you would assume is the client and server) with a
> screen identifier of dhcp-196-37:10.0 on dhcp-196-36.
> You start an app that sees $DISPLAY set as dhcp-196-37:10.0 and interpets
> it as a directive to open the display at dhcp-196-37 screen 10.0 . The app
> then does a lookup on dhcp-196-37 to get an ip address to look for screen
> 10.0 and this is where it fails.  Somewhere you've set the hostname to
> dhcp-196-37 on the remote computer, and it doesn't have a valid DNS
> name->ip mapping.  The easiest way to fix this is just a line to
> /etc/hosts which says something like:
> 127.0.0.1 dhcp-196-37
>
> That should get rid of your problem.
>
> I've been putting these kinda long explanations of why something isn't
> working.  Is anyone really reading it?  Or should I just start writing
> what to do fix it?  Or put the instructions way at the end so your forced
> to read the entire thing :)
>
> Jeff
>
> On Wed, 3 Oct 2001, Rodney Kanno wrote:
> > Hi Dusty,
> >
> > K when I do the echo I get:
> >
> > [happy at dhcp-196-36 happy]$ echo $DISPLAY
> > dhcp-196-36:10.0
> >
> > and on the local computer I get
> >
> > [happy at localhost happy]$ echo $DISPLAY
> >
> > :0.0
> >
> > So is there  a way to SSH into the remote to use the same display?
> >
> > Rodney
> >
> > On Wednesday 03 October 2001 08:00 pm, you wrote:
> > > Sounds like your problem is in setting the DISPLAY.  When you ssh to
> > > dhcp-196-36 do an 'echo $DISPLAY' and see if it is "dhcp-196-36:0.0",
> > > it should be <localsystems>:0.0.  dhcp-196-36 is the
> > > <remotesystem>:0.0.  Does that make any sense?
> > >
> > > Dusty
> > >
> > > > Hi,
> > > >
> > > > can anyone tell me what the cause of this error message is in SSH? I
> > > > logged into the computer using " ssh -X happy at servername " so that I
> > > > could forward X. Trying to run xmms I got this message:
> > > >
> > > > [happy at dhcp-196-36 happy]$ xmms
> > > > _X11TransSocketINETConnect: Can't get address for dhcp-196-36
> > > >
> > > > ** CRITICAL **: Unable to open display
> > > >
> > > > Is it because the computer I am logged onto uses DHCP?
> > > >
> > > > Thanks,
> > > > Rodney
> > > >
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