Ubuntu :: XVFB Served Remotely To Java Enabled Web Browser
Nov 1, 2010
What I have is Xubuntu running as a VM with VirtualBox on my Windows 7 Media Center that is always on. I am trying to be able to remotely access an X display on that box to do network auditing/ various linux stuff from the various places I go. I would like it to be as simple as possible and leave no trace on the remote computer, so what I would like is to use a java-enabled browser to connect to an xvfb on xubuntu with SSL encryption. I almost got it working using cherokee/x11vnc/desktop.cgi but it only works once or twice and I get network errors even on localhost. I would rather just not have X running all the time on the VM and just have an xvfb display waiting/created when I log in remotely from a browser.
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Mar 23, 2011
When I tried to log in this morning I couldn't until I enabled Java scripts in my Opera browser. This must be something "new and improved". Could someone confirm this? I would prefer "old and lousy" rather than open up my computer to the world at large.
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May 10, 2010
Girlfriend with a problem: she needs to sign up at the unemployment office in Spain. She is here in China. But for reasons unknown, she can't access the bit which she needs to. It says: 'can't set the browser' Java is enabled and so on, we read the instructions. On her windoze computer, she has a digital certificate. I copied it onto my mem-stick. When I try to copy it from my mem-stick to my Linux machine, I can't. Not even as root! The folder is called 'certificado digital' and contains two folders:
Trash.(tilde)1 and VM_Ware_Workstation They both have some kind of encrypted stuff inside. Can this certificate be installed on my machine?? Trash has 5 things, VM_Ware_Workstation has 3 things. The guy who set this up for her told her she must use Mozilla. Is a certificate only valid with a particular browser?
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May 29, 2011
Code: ~ $ /usr/java/jre1.6.0_25/bin/java -showversion Error occurred during initialization of VMjava/lang/NoClassDefFoundError: java/lang/Object
That's the error I get. When trying to run a java app with the firefox plugin, the browser simply crashes if it's the 64bit java or tells me it's not installed if it's the 32bit version.
I'm at a loss as to what to do. I think it has something to do with leftover gunk from a previous version I misinstalled(Is that even a word?) Anyway, the only thing that google could come up with was a solution for windows which laid blame on Bill Gates for having a bunch of pf (java prefetch) files stuffed into c:windows for no apparent reason. The solution was to delete them, but I can't seem to find the java prefetch folder in linux. The method I used is downloading the rpm from java.com the rpm2tgz then installpkg then cp libnpjp2.so to firefox plugins folder.
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Dec 20, 2010
As per this guide, I've enabled the multiverse source in /etc/apt/sources.list. However, using "sudo apt-get install sun-java6-bin" yields the same result:
Code:
cats4gold@laptop:~$ sudo apt-get install sun-java6-bin
Reading package lists... Done
[code]....
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Jun 4, 2011
Is it possible to debug remotely a java program with ddd (data display debugger)?
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Mar 27, 2011
I have Mozilla Firefox 3.6.16, Copyright (c) 1998 - 2011 mozilla.org,java version "1.5.0_06"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_06-b05)
Java HotSpot(TM) Server VM (build 1.5.0_06-b05, mixed mode)
And I did ln -s /usr/lib/../libjavaplugin_oji.so to my firefox plugins directory but I still have no java.There is also no java enable in the preferences/advanced in firefox. I also did about: config and switched to libjavaplugin_oji.so.Still no dice.I noticed that mozilla works, I launched PDM successfuly, but I want to use firefox. As for the java version, it's the only version Cisco's PIX PDM works.That's why i have this version of java.
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Sep 22, 2010
Not sure if this was the right place to post this. Recently installed Ubuntu Netbook remix on my netbook. On Windows I used IIS and pointed my website to a directory full of video files all in .avi containers, enabled directory browsing and could watch files in the browser on my PS3.
I'm wondering how I go about doing this in Apache? Since there isn't any GUI to do it for me like in IIS :P.
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Nov 19, 2010
Is it possible to install and use Flash Player whilst running under a Tor enabled browser. I have seen a version compiled to run under Windows but don't want to go backwards! I am running Ubuntu 10.10.
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Feb 16, 2011
I installed Libreoffice from the openbuild service and I observed the following when using Librecalc:
1. Lag time when opening a file.
2. Decreased performance when opening more than one file.
3. Windows freezing when minimizing or maximizing them, or moving them.
4. Windows freezing when using the tiling feature and dragging the cursor to one of the screen edges.
I disabled java and everything works perfectly. Is this the proper course of action? From what I read, I really only need java for the database program.
I am experiencing this behavior on my work computer which is running Opensuse 11.3 KDE 4.6 on a windows network.
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Apr 29, 2011
I just noticed that I can no longer login to the forums unless Java scripts are enabled in my browser (Opera). Is this a new feature?
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May 21, 2010
installing the software BluePad, which allows a user to control their desktop environment with a Java-enabled mobile phone. I am still adjusting to Fedora (and some other Linux distros) from Windows and I am unfamiliar with installing and executing software programs. Also, if you could also include any pre-requirements involved in the installation..
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Feb 13, 2010
I have switched from Firefox to Midori, but the default Java plugin in the Software Center will not work in Midori. I'm using Ubuntu 9.10 64-bit.
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Sep 17, 2010
I want to install Java...? Where can i download and can anybody tell me how can i install it? I have one more doubt. I am using two browser with Ubuntu. I want to install software ( informenter in chrome). Is this possible to install it I already download informenter.xpi from web...But still facing problem to install it.
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Jul 21, 2010
I'm looking for a browser than can handle heavy java usage. Firefox doesn't seem to be able to handle heavy usage anymore . Chromium does a decent job, but its just so different from Firefox I just can't get used to it. I have been trying to get used to chromium for over 2 weeks but can't because of the huge difference. So what other browsers can handle heavy java usage? On windows kmeleon was my go to browser to give you an idea of the browsers that I like.
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Mar 17, 2011
I'm using SeaMonkey instead of FireFox, and this won't change. SeaMonkey is set to be the default browser in Preferred Applications I use a java chat client every day (.jar), which has a button that opens an appropriate web address.
The problem is, it opens that site with FireFox instead of my desired SeaMonkey.
The client runs fine with openjdk and sunjava too ( I have both installed ), but they both open sites with FireFox. In Sun Java 6 Plugin Control Panel I set the SeaMonkey launcher as "Command to launch default browser", but the client still opens sites with FireFox. As for OpenJDK, I haven't found any way to modify settings.
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Jun 30, 2010
In my box Sun java and Open JDK co-exists. My problem is, despite been able to run java softs I can't run java applet in my browser (Opera mobile emulator, Facebook photo uploader etc).
Opera is my primary browser (Version 10.60 beta) and have FireFox 3.6.4 as the second choice. Both the browsers are malfunctioning when it comes to Java.
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May 7, 2009
How do u get jre to work with fc 10 64bit? I've tried installing both x86.64 and i586 version from sun's website but firefox still shows plugin missing.
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May 24, 2010
I want a internet browser to open a site that needs java engine,firefox has not this and also galeon :
The certificate is not trusted because it is self-signed.
(Error code: sec_error_ca_cert_invalid)
* This could be a problem with the server's configuration, or it could be someone trying to impersonate the server.
* If you have connected to this server successfully in the past, the error may be temporary, and you can try again later.
Or you can add an exception
You should not add an exception if you are using an internet connection that you do not trust completely or if you are not used to seeing a warning for this server.
If you still wish to add an exception for this site, you can do so in your advanced encryption settings.
How i can add exception or it is better to say me that :is there any browser instead of internet explorer for linux??
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Dec 17, 2010
I thought I knew what I was doing, just a minimal install of slackware 13.1 for a game server (minecraft), but it seems I missed java or something - I get the "command not found" error. gcc-java is installed. What package did I miss/what series is it in? Does it have any dependencies?
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May 7, 2010
I'm having a very strange error after upgrading to (K)Ubuntu 10.04.. basically Java Applets don't work in any browser (tried with Firefox, Chrome and Opera). The applet loads (plugin and JVM detected by all browsers) but it is grayed out. After trying all possible solutions I could think of (including installing alternatives jvm) I tried to run the browser as superuser: the applet is then working correctly. So somehow it seems to be a user right problem, but I'm not sure where this is coming from, both java (sun-6) and the browsers were installed and working ok in 9.10. Here is the directory list of /usr/lib/jvm/java-6-sun/jre/lib/i386
Code:
drwxr-xr-x 2 root root 4.0K 2010-05-07 14:03 client
drwxr-xr-x 2 root root 4.0K 2010-05-07 14:03 headless
drwxr-xr-x 2 root root 4.0K 2010-05-07 14:03 jli
[code].....
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Aug 5, 2010
I am using F13 and new to Linux, whenever I am browsing internet that contains java script, the browser crashes, showing error signal as:
Package: firefox-3.6.3-4.fc13
Latest Crash: Wed 04 Aug 2010 12:00:09 PM
Command: /usr/lib/firefox-3.6/firefox
Reason: Process /usr/lib/firefox-3.6/firefox was killed by signal 11 (SIGSEGV)
Comment: None
Bug Reports:
I also used google-chrome browser, same problem is arising there too.
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Feb 27, 2011
I am thrown in at the deep end and I am trying to get xvfb running but feel like I am doing a driving test blindfolded after a bottle of vodka when I go through the stuff google throws out when I search for help. I get the message when I try xvfb-run xvfb failed to start. I simply don't know where to start trouble shooting as I can't find or create an error log. I am using an aws systen and need it to keep running in the background so that I can use cutycapt, which is the main reason I have to work with it. I am on i386 with ubuntu maverick 10.10. I have installed the fonts and dependent software I think.
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May 22, 2010
Is there any Linux software that allows accessing a pre-configured serial console via Browser using a java applet? I would like to access the serial management consoles of various hardware devices via browser.
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May 16, 2011
I use Linux * 2.6.18-164.10.1.el5.028stab067.4ent #1 SMP Fri Jan 15 03:06:15 MSK 2010 i686 build to configure xvfb + cutycapt, I need it to convert html to image. The package that I have already installed:
build-essential
xvfb
xfonts-100dpi xfonts-75dpi xfonts-scalable xfonts-cyrillic
libgl1-mesa-dri
libqt4-webkit libqt4-dev g++
x11-xkb-utils
xserver-xorg-core
It seems like it works, but there is one problem. It misses chinese symbols when converts html to image. I thought that it is encoding issue and rechecked all my conf related that and set default encoding up to es_US.UTF8.
LANG=en_US.UTF-8
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC="en_US.UTF-8"
LC_TIME="en_US.UTF-8"
LC_COLLATE="en_US.UTF-8"
LC_MONETARY="en_US.UTF-8"
LC_MESSAGES="en_US.UTF-8"
LC_PAPER="en_US.UTF-8"
LC_NAME="en_US.UTF-8"
LC_ADDRESS="en_US.UTF-8"
LC_TELEPHONE="en_US.UTF-8"
LC_MEASUREMENT="en_US.UTF-8"
LC_IDENTIFICATION="en_US.UTF-8"
LC_ALL=
I'm testing these on the 2 computer. local and my vds. They both have Ubuntu 10.04. On the local machine all works fine, but on the vds it doesn't take chinese symbols. Where can I find the difference between machines configurations? I suspect it depends with X server configuration.
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Jan 4, 2011
Does anyone know or recommend some software or a script to remotely power on a PC from standby to on, or even better from completely off?
I guess the completely OFF to ON is much more complicated - would probably require an extra piece of hardware(?)
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Jun 29, 2011
I'm not terribly new to Linux, but I am new to the forums, so hear me out! I am in the process of creating an electronic mapwall for our meteorology program, and have designed the computing system from scratch. I have two Linux Boxes, each with capabilities for 6 attached monitors...a total of 12 displays driven from two machines. My intention is to have one machine be the master...it has a touchpanel control. The inputs to the touchpanel will then trigger events for the both the master and the slave machine to display. Each of them has a specific IP address (DNS entry), and are not on a subnet.
Now...is there a way to remotely login to the slave machine and have it display on it's OWN monitors? The code is Java and which works on the master machine to animate directories of .gifs for each of the master's attached monitors. I will most likely have Java execute shell commands for the remote login (ssh), but I believe the answer lies somewhere in the X-configuration. Do I have the machines in an adverse configuration (creation of a subnet would be better)? Lots of questions...lots of desire...few answers!
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Jun 3, 2011
I am using RHN system. Today, I were running Yum, some errors appeared as the below. Before, I had never such problems. I tried to search some solutions in Google, but can not find it.
[root]# Yum install xorg-x11-server-Xvfb
or
[root]# Yum list updates
There was an error communicating with RHN RHN support will be disabled Error communicating with server. The message was: Connection timed out
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Jan 4, 2010
I am trying to create a screen capture program with Xvfb server, ImageMagick and Khtml2PNG. I seem to be having some issues and was hoping someone could help me out. I have everything installed and working on a centos WHM/CPanel system and am able to generate the screen shots and save them to root folder from shell with the following commands.
Xvfb :2 -screen 0 1024x768x24&
export DISPLAY=localhost:2.0
khtml2png2 --sw 200 --sh 150 http://www.example.com example.png
It works 100% fine when you run it from shell.
[Code]...
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Mar 13, 2010
Where i can get xephyr,xnest, xvfb source tarrballs from particular version?
i want to test something but i haven't found any.
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