IPG Doc

User Tools

Site Tools

Trace:
faq

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revisionBoth sides next revision
faq [2007/02/12 15:30] – damirfaq [2007/02/13 11:56] – damir
Line 42: Line 42:
  
 (not yet complete) (not yet complete)
 +
 +== How to run several X-Servers simultaneously ==
 +
 +Have you ever wondered why Linux has 6 different virtual text-terminals but only one graphic-terminal? In fact, Linux has also 6 graphic terminals, it just uses only one by default.
 +
 +When you start your X-Server with the command "startx", the system assumes, you want to send the graphical output to the first graphic-terminal, which you can access by pressing Ctrl-Alt-F7.
 +
 +  "startx -- :0"
 +
 +is normally the same as just "startx", it puts the graphics to the first graphic-terminal
 +
 +  "startx -- :1"
 +
 +starts another X-Server with its output to the second graphic-terminal
 +
 +  "startx -- :2"
 +
 +starts another X-Server with its output to the third graphic-terminal
 +
 +... so we can run upto 6 different X-Servers simultaneously!
 +
 +You probably already knew, that you can switch between the text-terminals with the combination Alt- and the F1 to F6 keys.
 +Parallel you can switch between the graphic-terminals with Ctrl-Alt- and F7 to F12.
 +
 +
 +== How to connect to a remote X-Server, i.e. control it ==
 +
 +Have you noticed that, when you open an X-Server on your box, the system will open the port 7000 (thats the standard)? So it seems possible to connect to this port and trasmit the graphic data over a network(i.e. the internet). For this to be possible you have to do the following configuration steps:
 +
 +  - On the server:
 +
 +     - Allowing the server to send data to your client :
 +       "xhost +[ip]" whereas [ip] is the IP of the client
 +
 +  - On the client:
 +
 +     - Setting the server output to the remote X-Client:
 +     "export DISPLAY="[ip]:0" whereas [ip] is the IP of the client
 +
 +After doing this all programs that use X which are executed on the server will be visible and controllable on the client. The CPU time used by the program, however, will be the server one's.
 +
 +Thats pretty much it. I hope that wasn't too cryptic. Have fun. 
  
 === Mac === === Mac ===