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• Call Web Service via BizTalk Orchestration via received file

  This example shows how some business logic can be implemented by receiving a file into a BizTalk Orchestration and calling a Web Service. The results of the Web Service call are decided upon from the contents of the incoming file and the response message is constructed accordingly. The response message is also saved down to the local file system.  read moreBy BiZTech KnowDid you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Which game logic should run when doing prediction for PNP state updates

  - by spaceOwl

  We are writing a multiplayer game, where each game client (player) is responsible for sending state updates regarding its "owned" objects to other players. Each message that arrives to other (remote) clients is processed as such: Figure out when the message was sent. Create a diff between NOW and that time. Run game specific logic to bring the received state to "current" time. I am wondering which sort of logic should execute as part of step #3 ? Our game is composed of a physical update (position, speed, acceleration, etc) and many other components that can update an object's state and occur regularly (locally). There's a trade off here - Getting the new state quickly or remaining "faithful" to the true state representation and executing the whole thing to predict the "true" state when receiving state updates from remote clients. Which one is recommended to be used? and why?

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• How to determine file in "Error opening file for reading" error

  - by Mark Hildreth

  Since Ubuntu 12.04, whenever I open aterm, I get the following error message: Error opening file for reading: Permission denied aterm still opens and runs correctly, but I get that error message. I'd like to figure out what all this is about. Is someone familiar with this specific error for aterm? Otherwise, is there some log that records files that are attempting to be opened so I can determine what file it's complaining about? I've grepped my log files for "aterm" without success. Other tips for determining what the issue is?

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• Laptop resumes from suspend while lid is closed

  - by Gus

  I have a Dell Studio 15 and I am running Ubuntu 10.10. When I close my lid or select the suspend option, the machine suspends as indicated by the slowly pulsing power indicator. I'll put the machine in my bag and after a while it seems that the machine resumes, at least I think. When ever I go to get it, it's overheated and the system cannot resume. I am guessing that the processor resets in this overheat condition, but heat is still generated. This has happened about three times and I'm getting worried that I'll end up damaging the machine. How can I diagnose why the system is resuming from suspend? Can I force it to never resume from suspend if the lid is down?

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• Why does Network-Manager close when it cannot bind to any connection?

  - by Agmenor

  When Network-Manager is not able to bind my Ubuntu to any connection, after a while it closes. The icon in the notification area (or indicator area) disappears, and it does not run any more. For instance this happens when there is really no ethernet network nor wireless one. Nonetheless this is a problem, since I often plug in my ethernet cable long after having booted my computer. As a hack I therefore hit Alt + F2, and type nm-applet. But I am not satisfied with this solution, because I think it is not intuitive enough. Is there a way to keep Network-Manager always running? I have Network-Manager 0.8.1 on Ubuntu 10.10, but this has been so for a long time, at least for one year.

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• Is it possible to remove a particular host key from known_hosts?

  - by Kaustubh P

  I usually end up deleting the entire known_hosts file, which I have no problems for. But just out of curiosity, Is it possible to remove just a single entry? I opened the known_hosts file, and other han understanding that the file contains fingerprints for a given machine, I ddnt understand anything. Below is the message I faced, which led me to ask this question. Add correct host key in /home/wissen16/.ssh/known_hosts to get rid of this message. Offending key in /home/wissen16/.ssh/known_hosts:1 RSA host key for foo.com has changed and you have requested strict checking. Host key verification failed. Thanks.

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• Configuration server problem after changing /tmp mountpoint: how to solve?

  - by Aron Rotteveel

  I created a new partition on my hard drive because my /tmp partition was too small. I changed the mountpoint in /etc/fstab and rebooted. Every time I reboot, I get the following error message at the login screen: There is a problem with the configuration server. (/usr/lib/libgconf2-4/gconf-sanity-check-2 exited with status 256) When I log in, /tmp is mounted correctly and everything seems to work fine. When I reboot, the error shows again. When I change the /tmp mountpoint back to the old partition, the error message disappears. What could be causing this and how can I solve this issue?

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• Does dist-upgrade require PPA software to be uninstalled first?

  - by seb

  Hi all, I'm still running Ubuntu 10.04 with quite a few PPAs. Amongst the PPAs there is Guiodic (Guido Iodice) Lucid quasi-rolling :) PPA which brings most recent versions of many programs to my desktop. My steps: sudo update-manager -d click on upgrade on the appearing window wait for the magic to happen: prepare to upgrade and setting new software channels during 'calculating the changes' I will get the following error message in the panel An error occurred, please run Package Manager form the right-click menu or apt-get in a terminal to see what is wrong. The error message was: ' Error: Marking the upgrade (E:Error, pkgProblemResolver::Resolver generated breaks, this may be caused by help packages.)'This usually means that your installed packages have unmet dependencies When I check Synaptic/apt-get I can't find any errors or hint toward broken packages Could this error be because of many PPA versions being newer than 10.04 original versions?

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• How can I reach over 100% volume with a keyboard shortcut?

  - by suli8

  sometimes the sound of videos isn't enough for me. so i reach the sound indicator , over sound preferences and change it to a level higher than 100%. the question is how can i do it from the keyboard? now i can control the volume from the keyboard but it's maximum is 100%. is there a way to do that? EDIT 1: how to use amixer and scripts to do it? (as Lyrositor suggested) EDIT2: the closest answer , as Jo-erland, suggested is to set a hotkey to bring up the gnome-volume-control, and then to use left and right arrows to change volume also beyond the 100% mark. any other suggestions, to make this 1 step only? is it possible to set a hotkey to do a sequence of commands ?

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• Is it possible to remove a particular host key from SSH's known_hosts file?

  - by Kaustubh P

  I usually end up deleting the entire known_hosts file, which I have no problems for. But just out of curiosity, Is it possible to remove just a single entry? I opened the known_hosts file, and other han understanding that the file contains fingerprints for a given machine, I dont understand anything. Below is the message I faced, which led me to ask this question. Add correct host key in /home/wissen16/.ssh/known_hosts to get rid of this message. Offending key in /home/wissen16/.ssh/known_hosts:1 RSA host key for foo.com has changed and you have requested strict checking. Host key verification failed. Thanks.

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• Is there a good design pattern for this messaging class?

  - by salonMonsters

  Is there a good design pattern for this? I want to create a messaging class. The class will be passed: the type of message (eg. signup, signup confirmation, password reminder etc) the client's id The class needs to then look up the client's messaging preferences in the db (whether they want communication by email, sms or both) Then depending on the client's preference it will format the message for the medium (short version for sms, long form for email) and send it through our mail or sms provider's API. Because the fact that we want to be able to change out email and sms providers if need be I wondered if the Command Pattern would be a good choice.

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• how to make Chromium-browser start on vnc display?

  - by Oleksandr Dudchenko

  I have started Tightvncserver on Lubuntu 12.04 via the command $ tightvncserver -geometry 800x600 -depth 16 :2 VNC server successfully started and I got message like follows. New 'X' desktop is gateway:2 Starting applications specified in /home/dolv/.vnc/xstartup Log file is /home/dolv/.vnc/gateway:2.log Then I've successfully loged in from remote PC using realvncclient. Trying to start Chromium-browser from menu... no luck. There was one more attempt: I opened the LXTerminal from menu. Trying to start is from terminal with the command /usr/bim/chromium-browser & it returned the message like follows: Xlib: extention "RANDR" missing on desktop :2 I have also discovered that after my two attampts the chromium-browser has created 2 new windows on the host on which was session running on display :0 The Question: How to make the browser start on that display from which it was called (in my occasion from vnc session display)?

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• How to solve this problem starting new Opera-windows on dual monitor-setup?

  - by Mnementh

  I use Opera and have a setup with two monitors. If I want to open a new URL opera -newwindow URL. The outcome differs, if I execute this command in a program on the same screen where Opera is, or on the other. On the same screen everything is fine. I get the message opera: Activated running instance and the new window with the URL is opened. On the other screen, I get a dialog with the following message: It appears another opera instance is using the same configuration directory because its lock file is active: /home/(my name)/.opera/lock and the URL is not shown. That's not only from console, also if I click a link in E-Mail or so. How can I fix this? Window-manager is awesome, if it does make a difference.

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• Few questions about Thunderbird in Ubuntu 11.10

  - by Darwell

  I am happy with Ubuntu choice to replace Evolution with Thunderbird. However, I am having some issues with it. 1. What do you use to make Thunderbird minimize (and disappear from the launcher) when closing it? It should still be running (and give me notifications of new emails) but do not bother me on Launcher or in the list of windows, because I need free space. I tried using FireTray extension, it works quite okay, but it's buggy - sometimes there are two instances of Thunderbird open when using it and also, Thunderbird's global menu disappears after some time of using the extension. 2. Is there a plan to integrate Thunderbird's calendars into Date indicator in Ubuntu? I'd like to see my events when I have clicked on the time. Thanks.

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• Ubuntu chroot “No such file or directory”

  - by Paris

  Hi there. I hace a web application where I create some folders on my server and put executables there. Then I try to wun them with chroot but I get a message that access is denied there. I tried chroot -r 777 blah blah.... and then I get a message that the folder or the file that I call (sudo chroot mydirectory myfile_inside_Mydirectory) does not exist. This happens only when I call chroot on folders created by the web server. My web application is in php and I use: shell_exec("cp -R /var/www/comp/prison/bin $dir"); shell_exec("cp -R /var/www/comp/prison/lib $dir"); shell_exec("cp /var/www/janitor.out $dir/janitor.out"); shell_exec("sudo chmod -R 777 $dir"); $process = proc_open("sudo chroot $dir janitor.out", $descriptorspec, $pipes); sudo does not need password.

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• Simple alternating text in Visual Basic 2008

  - by Josh Grate

  I have a simple completed program, but i would like to add one more feature to it but I'm not sure how. I have it set up to send a message automatically every 7 seconds when a text field is selected, repeating the message of course. What I would like for it to do is alternate between two separate messages, instead just repeating the one. I would like the new program to post at an interval of 12 seconds. Can you help me? Here is my coding. Public Class Form1 Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick SendKeys.Send(TextBox1.Text) SendKeys.Send("{ENTER}") End Sub Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Timer1.Enabled = True Timer1.Interval = (TextBox2.Text) End Sub Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click Timer1.Enabled = False End Sub Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Timer1.Enabled = False End Sub End Class

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• will Unity have a keyboard shortcut for accessing the "Session Menu" that appears on the panel?

  - by Sam

  I noticed in screen shots of Unity the presence of the "Session Menu" indicator in the right corner of the top-panel. This menu drops down to offer Log Out, Hibernate, Restart, Shut Down, etc. I know the keyboard shortcuts are not complete yet. But are there plans to implement a shortcut for accessing this Session Menu (i.e., so users can log out, restart & shut down without having to use the mouse)? Further, will the shortcut allow navigation through the menu by just typing the first letter of the listed word (e.g., R for restart and S for shut down)?

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• gnome-file-share-properties doesn't work

  - by Riccardo Magrini

  I've configured gnome-file-share-properties on all my Ubuntu's PC for sharing the directory Public to each other. I following some guide found on Internet for the configuration of it, all explain the same procedure but in my case I don't see any Public directory shared with the PC. Following this link http://library.gnome.org/users/gnome-user-share/stable/gnome-user-share-getting-started.html.en I'd see the directory Public plus the name of PC that shares its directory on Nautilus Places. In my case I don't see anything, therefore on the Network place see all the machines 'n if I try to click on one receive this: "DBus error org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)" note: I don't want to use Samba because I've all Ubuntu PC, and the firewall is disabled on all PC.

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• EntSSO stopped working

  - by blomqvist

  My EntSSO (Enterprise Single Sign-On Server, part of BizTalk) did not start today, with the message: The SSO service failed to start. Error Code: 0x80131700 Could not create SSOSQL. To fix the problem, reinstall SSO or try 'regasm SSOSQL.dll' from a Visual Studio command prompt. Error Code: 0x80131700   The only reason for this that I can think of is that I have just installed the .net framework 4.0 RC but I have not verified this. The solution suggest in the error message works like a charm! Open a Visual Studio command prompt and run this command: regasm  ‘C:\Program Files\Common Files\Enterprise Single Sign-On\SSOSQL.dll’ Problem solved!

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• gpg passcode error

  - by shantanu

  I just created my gpg key using developer.ubuntu.com packaging page's documentation and also upload the public key in key server. When i import the key into launchpad it sent me an encrypted message. Now i give a command to decrypt the message gpg -d launchpad.txt it asked for a passcode. I gave one which i used to create gpg key. but it shows error again again. I repeat the process(gpg creation) again but stuck on .... passcode(decryption). What is the problem?

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• How come I can not install plugins on my local Wordpress install?

  - by classer

  Hello, I got WordPress up and running fine on Ubuntu 10.04 by using this source except that when I try to update and install themes/plugins I get this following error message in wp-admin page: Installing Plugin: WordPress.com Stats 1.8.1 Downloading install package from http://downloads.wordpress.org/plugin/stats.1.8.1.zip… Unpacking the package… Could not create directory. /var/www/wordpress/wp-content/upgrade/stats.tmp/stats Actions: Return to Plugin Installer At first I thought I had to setup an FTP account but searched more and I found some information that says that I need to change the permissions of the wp-content folder which is located in the directory: /var/www/wordpress/wp-content I tried changing it by doing: sudo chmod -R 777 wp-content/ but when I tried installing a plugin I got the same error message. I also tried passing it 755 as a permission but still got the same thing. I settled on 755 because it is more secure I have read. How can I solve this problem safely and securely?

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• How to fix "maximum number of clients reached"?

  - by Brian Averill

  About 30 Oct I ran recent updates for 12.04 64bit. No errors occurred. Next day when I booted computer most apps would not start or if started (eg Chrome) other app windows do not appear. Trying a command line start on most apps gives this message: "Maximum number of clients reachedError: cannot open display: :0" The 'error' part of message not always the same. Have tried to find solution on Ubuntu forums and other Linux web sites, but cannot find a solution. HELP please.

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• An alternative way to request read reciepts

  - by lavanyadeepak

  An alternative way to request read reciepts Sometime or other we use messaging namespaces like System.Net.Mail or System.Web.Mail to send emails from our applications. When we would need to include headers to request delivery or return reciepts (often called as Message Disposition Notifications) we lock ourselves to the limitation that not all email servers/email clients can satisfy this. We can enhance this border a little now, thanks to a new innovation I discovered from Gawab. It embeds a small invisible image of 1x1 dimension and the image source reads as recieptimg.php?id=2323425324. When this image is requested by the web browser or email client, the serverside handler does a smart mapping based on the ID to indicate that the message was read. We call them as 'Web Bugs'. But wait it is not a fool proof solution since spammers misuse this technique to confirm activeness of an email address and most of the email clients suppress inline images for security reasons. I just thought anyway would share this observation for the benefit of others.

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• Bluetooth pairing works in 10.10 but not in 11.04

  - by Nathan Haines

  My laptop, a Compaq Presario V2000, has a built-in Bluetooth module that has worked well since at least Ubuntu 8.04 LTS. I use it to pair with headphones and a mouse. These both worked great in Ubuntu 10.10 (and still do with a live CD) but I cannot pair to any Bluetooth device in Ubuntu 11.04, even from a live CD. I can see the Bluetooth module in lspci and when I try to set up a new device from the Bluetooth indicator my computer detects all Bluetooth devices around me but pairing always fails. At the moment I'm most concerned with getting my Microsoft Wireless Notebook Presenter Mouse 8000 paired. Relevant output of lspci: Bus 003 Device 002: ID 03f0:011d Hewlett-Packard Integrated Bluetooth Module

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• How to modify Dreamweaver's SpryMenuBar.js to send a msgbox on what menu was clicked?

  - by Mike

  I have a simple HTML webpage made in Dreamweaver with a SpryMenuBar. When I click on a menu item, I want to send a pop up message box that says which menu item was clicked. (This is not really my objective but once I can learn to hook into the spry java script with a mouse click listener I can try to do what I am really after.) The problem is for some reason I can't seem to get started with this seemingly simple task. Does anybody know how to revise the SpryMenuBar.js to make a msgbox showing the item that was clicked? For example if I click a menu that say's 'Contact us', I wan't to throw a message box that says "You pressed, Contact us". Note: My final objective is to actually call another function that changes text in the center of my page, depending on what menu item was clicked.

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