x11 and port 6000

Hi All,

At work, all of my applications are unix/Linux applications. Once a week
I work from home to cut down on my weekly commute (65 miles to/from). I
would be nice if I can log on to my machine at work and display back to
home machine. But I notice that I'm not listening on port 6000 which I
need for x11.

How do I open port 6000 to listen?

So far I've tried with no luck:

Edit /etc/X11/Xservers
----------------------
:0 local /usr/X11R6/bin/X -br vt7 # remove -nolisten tcp
:1 local reserve /usr/X11R6/bin/X -br :1 vt8 # remove -nolisten tcp
:2 local reserve /usr/X11R6/bin/X -br :2 vt9 # remove -nolisten tcp
:3 local reserve /usr/X11R6/bin/X -br :3 vt10 # remove -nolisten tcp
:4 local reserve /usr/X11R6/bin/X -br :4 vt11 # remove -nolisten tcp
:5 local reserve /usr/X11R6/bin/X -br :5 vt12 # remove -nolisten tcp

Edit /etc/services
------------------
# these lines were previously commented out
x11 6000-6063/tcp X Window System
x11 6000-6063/udp X Window System

Help would be greatly appreciated!

Timothy Cartwright wrote:

> Hi All,
>
> At work, all of my applications are unix/Linux applications. Once a week
> I work from home to cut down on my weekly commute (65 miles to/from). I
> would be nice if I can log on to my machine at work and display back to
> home machine. But I notice that I'm not listening on port 6000 which I
> need for x11.
>
> How do I open port 6000 to listen?

Not sure if this is of any help, but I use Remote Administration inside the
office. I use it to remotely log into several machines from my main
workstation. I configured it using

SUSE 9.3
Yast->Network Services->Remote Administration

I then use KMenu->System->Remote Access->krdc to log into those machines.
I'm then presented with the same kdm login just like when I'm sitting at
the machines.

This may not be what you are looking for, but it may be good enough?

Alvin

Alvin said the following on 10/05/2005 06:48 PM:
> Not sure if this is of any help, but I use Remote Administration inside the
> office. I use it to remotely log into several machines from my main
> workstation. I configured it using
>
> SUSE 9.3
> Yast->Network Services->Remote Administration
>
> I then use KMenu->System->Remote Access->krdc to log into those machines.
> I'm then presented with the same kdm login just like when I'm sitting at
> the machines.
>
> This may not be what you are looking for, but it may be good enough?
>
> Alvin

Is that somewhat like VNC? I use VNC, but sometimes I want to avoid
having to display the whole environment. I want to remote login and then
maybe display only a gvim window for example.

Thanks,
Timothy

On Wed, 05 Oct 2005 21:04:48 GMT
Timothy Cartwright <timothy.cartwright@gmail.com> wrote:

> At work, all of my applications are unix/Linux applications. Once a
> week I work from home to cut down on my weekly commute (65 miles
> to/from). I would be nice if I can log on to my machine at work and
> display back to home machine. But I notice that I'm not listening on
> port 6000 which I need for x11.

Have you opened the appropriate ports in your firewall?


--
Kevin Nathan (Arizona, USA)
Linux Potpourri and a.o.l.s. FAQ -- http://www.project54.com/linux/

Open standards. Open source. Open minds.
The command line is the front line.
Linux 2.6.8-24.18-default
8:31pm up 27 days 21:18, 12 users, load average: 0.60, 0.55, 0.48

Timothy Cartwright wrote:

> How do I open port 6000 to listen?

Extremely bad plan. I would advise you to use FreeNX and nxclient to do
that. It's safer because it runs over SSH and it needs less bandwidth than
raw X11.

--
Ruurd

On 10/5/2005 8:32 PM, Kevin Nathan was rumored to have said:
> On Wed, 05 Oct 2005 21:04:48 GMT
> Timothy Cartwright <timothy.cartwright@gmail.com> wrote:
>
>> At work, all of my applications are unix/Linux applications. Once a
>> week I work from home to cut down on my weekly commute (65 miles
>> to/from). I would be nice if I can log on to my machine at work and
>> display back to home machine. But I notice that I'm not listening on
>> port 6000 which I need for x11.
>
> Have you opened the appropriate ports in your firewall?
>
>
Yes, I'm forwarding port 6000 through my router's firewall.

On 10/6/2005 12:19 AM, R.F. Pels was rumored to have said:
> Timothy Cartwright wrote:
>
>> How do I open port 6000 to listen?
>
> Extremely bad plan. I would advise you to use FreeNX and nxclient to do
> that. It's safer because it runs over SSH and it needs less bandwidth than
> raw X11.
>
I'm not familiar with FreeNX or nxclient. Could you give a brief summary
of these tools.

By the way, the OS on my machine at work is Solaris 5.8, so keep that in
mind.

R.F. Pels wrote:
> Timothy Cartwright wrote:
>
>
>>How do I open port 6000 to listen?
>
>
> Extremely bad plan. I would advise you to use FreeNX and nxclient to do
> that. It's safer because it runs over SSH and it needs less bandwidth than
> raw X11.
>

I wouldn't open port 6000, nor would I display the whole screen if I
didn't want to. Tunnel X through SSH instead.

ssh -X address <application>

You just need to have "X11Forwarding yes" in sshd_config

Lee Garner wrote:

> I wouldn't open port 6000, nor would I display the whole screen if I
> didn't want to. Tunnel X through SSH instead.

Again. Look at FreeNX. Or download the nxclient and do the demo on
nomachine.com

--
Ruurd

R.F. Pels wrote:
> Again. Look at FreeNX. Or download the nxclient and do the demo on
> nomachine.com
>

Once is enough, thanks. From using FreeNX for the last few months, I
agree that the performance is much better than VNC. However, there is
more than one way to access a remote computer, and I was considering the
original poster's request in my reply:

"I use VNC, but sometimes I want to avoid having to display the whole
environment. I want to remote login and then maybe display only a gvim
window for example."

There might be a way, but I haven't found it, to have FreeNX display
only individual apps rather than the whole remote desktop.