Visit Our UNIX and Linux User Community


Display variable


 
Thread Tools Search this Thread
Special Forums Cybersecurity Display variable
# 1  
Old 10-02-2001
Question Display variable

Hi:

Im trying to change the display setting from my Linux server to Linux workstation but a Refused connection by server appear.

The first task that I doing is to export the DISPLAY variable on my Linux Workstation so I tried to execute several X programs with the Refused Connection message.

Anybody can help me?

Thanks and Regards
# 2  
Old 10-02-2001
X is your friend...

Now repeat that in a crowded room 20 times, see who looks at you, they can help...

Just kidding, you need to allow connections incoming to your display. Now, this is easy in most unices, and I don't know if I'm off or not given taht you're on Linux.. Here goes:

What is lacking is an allowed connection to your Xserver. Picture it like this, the display (screen) you want to paint the grapohics on is the "server", you must allow it to accept sconnections from "guests" that want to paint graphics on the display. To do this, you used to type an "xhost + ip.of.host.youknow". This allows for host based authentication of connections to the Xserver. This is about as secure as the "r" services, but i's not terrible if you.re careful. Now, sometimes, you can get frustrated and just want it to WORK NOW!!! In those rare cases (snicker), you can of course type in "xhost +", this opens to connections for ANYONE. Meaning that your display can output the graphics from any host. That's not all, so this is bad, you REALLY want to keep tabs on your XSERVER. Try not to do this unless you are NOT connected to an external network.
X is really confusing and I certainly don't understand all of it, jeez, I still use the kindergarten example from above that my first real boss gave to me. I have to picture it in my head, and it's still weird. If you're really interested in how confyusing and complex X can be, might I suggest the X Library, I forget who prints them, but I think it was around 11 volumes, all having to do with X, it's protocol, it's uses, and it's programming API.



HTH,


loadc
# 3  
Old 10-02-2001
Ooops!!

One more thing

man is you rfriend here, and if you haven't done the updatedb, do that and use man -k and a keyword that you want to look for "man -k X | more", that should give you some ideas as to what commands will be helpful...



loadc

Previous Thread | Next Thread
Test Your Knowledge in Computers #94
Difficulty: Easy
The mv command in Linux moves a file from one location to another, but only in the same directory.
True or False?

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Display all lines after a matching variable

Hi, I have a file called abc.txt with the following dates 2016-01-27 2016-01-28 2016-01-29 2016-01-30 2016-01-31 2016-02-01 2016-02-02 2016-02-03 I would like to print all lines below if 2016-01-31 is found, excluding that date. I use this command --> sed '1,/2016-01-31/d' abc.txt If... (4 Replies)
Discussion started by: Nagesh_1985
4 Replies

2. Shell Programming and Scripting

Variable arangement to display

Hello For this future package for community, i'd like to know your preference on this presented 'issue'. Writing some commands which will display some strings, using another command supporting 3 strings to be supplied, i wonder how the 'default output' should look like. Let me use a... (2 Replies)
Discussion started by: sea
2 Replies

3. UNIX for Dummies Questions & Answers

DISPLAY Environment Variable

I've seen articles which say "export DISPLAY=<IP>:0" and others which say "export DISPLAY=<IP>:0.0". Can someone explain what the difference is? TIA (4 Replies)
Discussion started by: cjhancock
4 Replies

4. Shell Programming and Scripting

Trying to display a tab character in variable

Hi, I'm trying to figure out a way to encapsulate a tab character, or four or five space characters into a string variable to be used in my script. I'm using the bash shell. I tried $variablename=" <string text>" but it didnt give me the output i wanted (output was still... (7 Replies)
Discussion started by: rowlf
7 Replies

5. Ubuntu

Configure DISPLAY variable for DB2

I am trying to install a DB2 90-day trail but I got the error with the DISPLAY, it says is not configured correctly. I cannot post the error due to I am not in my personal PC but when I type: echo $DISPLAY it shows nothing. I also tried: xclock & and nothing appears just an error. I know there... (2 Replies)
Discussion started by: agasamapetilon
2 Replies

6. UNIX for Dummies Questions & Answers

How to export the Display variable

I'm trying to open an xwindow on my Sun server. What am I doing wrong? # echo $SHELL /sbin/sh # # export DISPLAY=localhost:0.0 DISPLAY=localhost:0.0: is not an identifier Thank you! (1 Reply)
Discussion started by: FredSmith
1 Replies

7. Shell Programming and Scripting

How to read variable with no display

I'll be reading user name and password from the person while running a shell script so that he is authenticated. The challenge here is to read the password variable without displaying on screen. Is there a way? I presently do it displaying it on the screen as echo " please enter your... (9 Replies)
Discussion started by: dayanandra
9 Replies

8. Shell Programming and Scripting

Loop counter variable display

Hello everyone, how can I send output to the screen from a running script or tcl, in such a way that if a loop is executing I will see the rolling counter on my screen as the records are processed in the loop. I do not want the screen to scroll, though. In other words can a var's value be painted... (2 Replies)
Discussion started by: lifespan
2 Replies

9. UNIX for Dummies Questions & Answers

Display from a variable using echo.

I have a variable that is outputting a lot of space. here has been 45 lines returned ... how can I remove the spaces between the "been and the 45" CODE: fil_len=`wc -l < coshb.txt` if ; then cat coshb.txt | more echo " " echo "There has been ${fil_len} lines... (4 Replies)
Discussion started by: jagannatha
4 Replies

10. UNIX for Dummies Questions & Answers

Passing DISPLAY variable through rsh

I am trying to add a menu item (Openwin menu) to do an rsh and execute a script which open a graphical tool. The problem I am having is that I cannot seem to pass the display variable. The OS for both boxes is Solaris 2.6. Thanks, Chuck (4 Replies)
Discussion started by: 98_1LE
4 Replies

Featured Tech Videos