comp.os.linux.networking

tom_sawyer70@yahoo.com wrote:

> I am taking a course at a local university and we're using a revision
> of "Red Hat Linux Networking and System Administration." In the VNC
> configuration section, the text states:
>
> "By default, VNC uses ports numbered 5900 plus the display number. In
> this example, the display is :1, so the port number is

still 5900!!

The display number is like a session number.
Suppose you had 10 users connecting to the same machine.
Each of those persons can have the same port number but a different display
number so that each person will be given a different screen so they can
open up different applications and have different windows open at any one
time. Each screen can't see the other screen but each user will feel they
have the PC all to themselves. Each display runs independently even
though there is only one physical graphics card.

The converse of that is many users connecting to the same port and display.
For example 10 students can connect to port 5600 display :1 so that
they all see what teacher is demonstrating.


> 5901. If you
> were using display number :21, the port number would be 5912."
>
> Is the port designation that is transposed for display number :21
> supposed to be transposed to "5912" as stated? Or is this a typo and
> should it be "5921?"
>
> TIA,
> Dave