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ArchBeat Link-o-Rama for November 21, 2012

- by Bob Rhubart

Fault Handling and Prevention - Part 1 | Guido Schmutz and Ronald van Luttikhuizen In this technical article, part one of a four part series, Oracle ACE Directors Guido Schmutz and Ronald van Luttikhuizen guide you through an introduction to fault handling in a service-oriented environment using Oracle SOA Suite and Oracle Service Bus. One Stop Shop for Oracle Webcasts Webcasts can be a great way to get information about Oracle products without having to go cross-eyed reading yet another document off your computer screen. Oracle's new Webcast Center offers selectable filtering to make it easy to get to the information you want. Yes, you have to register to gain access, but that process is quick, and with over 200 webcasts to choose from you know you'll find useful content. Oracle on Oracle: Is that all? (Identity Management)| Darin Pendergraft Darin Pendergraft shares a discussion with Jaime Cardoso aboutthe latter's experience with Oracle's IDM products. What's particularly interesting is that the discussion grew out of Jaime's highly critical comment that Darin missed important pointsabout those products in an earlier interview Chirag Andani. If that ain't social engagement, I don't know what is. I.T. Chargeback : Core to Cloud Computing | Zero to Cloud "While chargeback has existed as a concept for many years (especially in mainframe environments), it is the move to this self-service model that has created a need for a new breed of chargeback applications for cloud," says Mark McGill. "Enabling self-service without some form of chargeback is like opening a shop where all of the goods are free." New Self-paced Online Oracle BPM 11g Developer Training | Dan Atwood Oracle ACE Dan Atwood of Avio Consulting shares a lot of information about a new Oracle BPM 11g Developer Workshop. JPA SQL and Fetching tuning ( EclipseLink ) | Edwin Biemond Oracle ACE Edwin Biemond's post illustrates how to "use the department and employee entity of the HR Oracle demo schema to explain the JPA options you have to control the SQL statements and the JPA relation Fetching." Thought for the Day "Team development is like a birthday cake. Everybody gets a piece." — Assaad Chalhoub Source: SoftwareQuotes.com

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How to have file/folder icons use a relative path?

- by Memor-X

On my portable hard drive I set icons for almost every organized folder. All these icons are located in an Icons folder located on the root directory of the same hard drive. When I change the drive letter of the hard drive (well I don't, windows does automatically sometimes) these icons are lost. So far this hard drive is assigned to F: While it's not a problem now, it may becomes a problem if I upgrade my computer or get a new one and the F: Drive is already taken up for something else. It's also annoying on networks where F: is mapped to a network drive.

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Using Linode as a proxy server wrapped in DNS to bypass paid internet services

- by snihalani

I have a linode server that I use for development. I was thinking of using that as a proxy server. I have noticed that most paid connections allow DNS queries but don't allow http until I pay them. I verified this by flushing my dns cache and nslookup some random websites. How do I create a proxy server that allows me to may be wrap my packets from my computer in DNS packets, relay to my linode server with ssh key authentication and act as a broker? Thanks.

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How to get OpenSSH to use ksshaskpass under KDE?

- by Guss

When using a GNOME desktop on Ubuntu, if I use OpenSSH client to connect to another computer (running from the gnome-terminal), I get a single graphic popup asking for my private key's pass-phrase. After that I no longer need to enter my pass-phrase as it is cached by the SSH agent. Under KDE it doesn't work like that - when I start ssh from konsole, I get a text prompt for my pass-phrase every single time, even though ssh-agent is running. If I run ssh-add from the terminal then I can enter my pass-phrase on the terminal and it will be stored by ssh-agent and I won't get any more pass-phrase prompts, while if I run ssh-add the KRunner graphical command line ("Run" dialog) then I get a graphical prompt with the same behavior. The problem is I have to remember running ssh-add every time I log in to the desktop. How can I get ssh to behave under KDE, the same as it does on GNOME - the first time the pass-phrase is needed, pop up a graphical dialog and store the pass-phrase in the agent. I've installed ksshaskpass, but that didn't change anything.

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Online Backup strategy for family individuals

- by marlon brando

The majority of my family, including myself, uses Dropbox and Syncplicity free accounts for our syncing needs. However our backup strategy is pretty non-existent, we all have access (via webDav) to our qnap nas located at home, however we copy files accross when we can remember to do so, terrible I know. Is there tools like CrashPlan or Spideroak that allows each the accomodation of each family members syncing and back-up needs under one main account? I'm not sure how this would work, as each family member would need a seperate sub-account or would I manage each computer's syncing and backup lists from a single account? Any thoughts?

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Why my laptop doesnt boot in any OS (windows or ubuntu) after RAM upgrade?

- by qrsq

My laptop previously had 2 slots of RAM ( 1x1Gb , 1x2GB , both were clocked at 1066mhz) and it was working on windows 7 x86 OS. I Upgraded the ram with ( 2x4GB clcoked at 1333mhz). Bios displayed 8192MB of memory and windows was working ok but (only 2.99GB of ram from 8gb was avabile). So i decided to switch to an x64 system to be able to use all the amount of memory. But the laptop wasnt able to install any os (windows 7 x64 or windows 8 x64) so i placed the 3gb of ram instead of 8gb. Then i succesfully instaled an x64 os (windows 8). After than i placed the 8gb ram back again. Now the computer doesnt boot in the os but bios is working normally. I tried also to install ubuntu , without any succes. What should i do ?? All the help will be appreciated. thanks

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Internet wireless connected with limited access, windows vista

- by r0ca

I had some malware in my computer so I did a bit of manual work to remove it including resetting TCP/IP. Now the malware is gone. I can see my home wireless network and I can get connected to it but when connected I get the Internet wireless connected with limited access message. When I go to the IE I cannot browse. When I tried to ping 192.168.1.1 I got an Error Code 1231 Unconnected Network Problem. I have deactivated my Windows firewall as I thought it could be hyperactive security. Still no luck. I have Norton but it is not active, I have also Avast and AVG installed but they are not active. Any ideas?

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Wireless driver not detected by Windows 8

- by rksh

I've a problem in my wireless driver on windows 8. I bought a new X500L Asus laptop and installed windows 8 on it. However the driver CD I got with the laptop doesn't support my laptop. The CD says it's designed for Windows 8.1. I tired finding Wireless driver model and finding driver online and installing and that hasn't worked either, the wireless driver is shown at the device manager as not installed. I tired live booting the computer with a live CD of Linux and that also doesn't pick up my wireless driver. Can anyone tell me how to fix it? Thanks

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Dell D620 Windows 7 Blank screen

- by Dave Arkell

When I installed Windows 7 on my Dell D620 it was all fine until a couple of days later most times when I either shut down or suspend (by closing the lid). When I unsuspend or startup the computer, there is often a completely blank screen (can't see post screen or anything), and restarting doesn't help. I've found that I can eventually bring it back up again by suspending and unsuspending a few times, but obviously this is not ideal. Has anyone else experienced this? I think it is a driver issue, that somehow the driver is putting the video card into a certain mode that it forgets how to get it back out of. Any ideas on a better solution than my switching off and on business? Edit: Turns out that the video card had burned out! IT managed to get me a new mainboard sorted for me.

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Is my use case diagram correct?

- by Dummy Derp

NOTE: I am self studying UML so I have nobody to verify my diagrams and hence I am posting here, so please bear with me. This is the problem I got from some PDF available on Google that simply had the following problem statement: Problem Statement: A library contains books and journals. The task is to develop a computer system for borrowing books. In order to borrow a book the borrower must be a member of the library. There is a limit on the number of books that can be borrowed by each member of the library. The library may have several copies of a given book. It is possible to reserve a book. Some books are for short term loans only. Other books may be borrowed for 3 weeks. Users can extend the loans. 1. Draw a use case diagram for a library. 2. Give a use case description for two use cases: • Borrow copy of book • Extend loan Diagram: Use case description: 1. Borrow a copy of the book: If the person wishes to borrow a book from Derpville Public Library, he/she must be a member of the library in which case they will be allowed to issue a certain number of books. If the person is not a member, the book will not be issued to them for taking away, rather they will have to sit and read in the library. 2. Extending loan: Some books will be lent for 3 weeks while others will be lent for more than 3 weeks in which case the person borrowing has to come to the library and get the date extended. There is a limit on how much the user can extend the date of a particular book.

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vncserver too many security failures

- by cf16

I try to connect to my vncserver running on CentOs from home computer, behind firewall. I have installed Win7 and Ubuntu both on this machine. I have an error: VNC conenction failed: vncserver too many security failures even when loging with right credentials (I reset passwd on CentOs). Is it something regarding that I try as root? I think important is also that I have to login to remote Centos through port 6050 - none else port works for me. Do I have to do something with other ports? I see that vncserver is listening on 5901, 5902 if another added - and I consider connection is established because from time to time (long time) the passwd prompt appears,... right? please help, what to do? even if prompt appeared and I put correct password I get: authentication failure. how to disable this lockout for a testing purposes?

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How can I use a batch shortcut to open multiple Windows Explorer folders, and a Notepad file?

- by ModelHX

I've recently built a computer with an SSD in it (my first) and am in the process of moving a select few of my Steam games to the SSD and symbolically linking them to where they're supposed to be on the main (mechanical) hard drive so that Steam doesn't throw a fit and I get maximum performance. To this end, I'm finding myself repeatedly navigating to both target folders to move the relevant files and opening a specific Notepad file to enter the relevant paths into a template I've got set up that I paste into the Windows command prompt to create the symlink. This is annoying. I've read up a little bit on batch shortcuts, and have a basic understanding on how to use one to open programs and files. However, I'm finding a lot of confusing suggestions on how to use batch shortcuts to open specific folders in Windows Explorer, and none of them deal with opening multiple folders at once. Any assistance on writing the shortcut would be greatly appreciated. Thank you for your time.

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Upgrading NAS hard drives

- by Mihai Damian

I was thinking of buying a NAS for home-usage. I've never used a NAS or had HDDs set up in Raids. Before I commit myself to moving all my data to a NAS I need to find out how difficult it is to upgrade and replace the NAS' hard drives. Suppose I set up a Raid 1 NAS with two 1TB hdds. At some point in the future I will use up all the space and will have to install two new 2TB hdds. Now I'll need to migrate the data from the old disks to the new ones. Will I have to hook up one of the old disks in a computer and copy all the data back in the NAS? Or can the migration be done using only the NAS? I realize the answer to the question might depend on the NAS model. Being a simple for-home solution I was thinking of getting something along the lines of D-link's 323.

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Building Single Page Apps on the Microsoft Stack

- by Stephen.Walther

Thank you everyone who came to my talk last night on Building Single Page Apps on the Microsoft Stack. I’ve attached the slides and code samples below. Here’s a quick summary of the talk. I argued that Single Page Apps are better than traditional Server Side Apps because: Single Page Apps are Stateful – In a traditional server-side app, whenever you navigate to a new page, all of your previous state is lost. It is like rebooting your computer whenever you perform any action In a Single Page App, Your Presentation Layer is Not Miles Away – In a traditional server-side app, because everything happens on the server, your presentation layer is separated from the user by space and time. In a Single Page App, the presentation layer is in the browser and not the server (which is the right place for a presentation layer). A Single Page App Respects the Web – It is easier to take advantage of HTML5 and related standards when building a Single Page App. Next, I recommended using the following four technologies when building a web application: Knockout – This is how you create your presentation layer. ASP.NET Web API – This is how you expose JSON data from your web server and perform server-side validation. HTML5 – This is how you implement client-side validation. Sammy – This is how you implement client-side routing and create a Single Page App with multiple virtual pages. There are code samples in the download (look in the Samples folder) which demonstrate how all of these technologies work when building Single Page Apps. Powerpoint Sample Code

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Project Corndog: Viva el caliente perro!

- by Matt Christian

During one of my last semesters in college we were required to take a class call Computer Graphics which tried (quite unsuccessfully) to teach us a combination of mathematics, OpenGL, and 3D rendering techniques. The class itself was horrible, but one little gem of an idea came out of it. See, the final project in the class was to team up and create some kind of demo or game using techniques we learned in class. My friend Paul and I teamed up and developed a top down shooter that, given the stringent timeline, was much less of a game and much more of 3D objects floating around a screen. The idea itself however I found clever and unique and decided it was time to spend some time developing a proper version of our idea. Project Corndog as it is tentatively named, pits you as a freshly fried corndog who broke free from the shackles of fair food slavery in a quest to escape the state fair you were born in. Obviously it's quite a serious game with undertones of racial prejudice, immoral practices, and cheap food sold at high prices. The game itself is a top down shooter in the style of 1942 (NES). As a delicious corndog you will have to fight through numerous enemies including hungry babies, carnies, and the corndog serial-killer himself the corndog eating champion! Other more engaging and frighteningly realistic enemies await as the only thing between you and freedom. Project Corndog is being developed in Visual Studio 2008 with XNA Game Studio 3.1. It is currently being hosted on Google code and will be made available as an open source engine in the coming months.

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asus eee pc 1018p os installation

- by cornerback84

My friend has an asus eee pc 1018p. It has no cd/dvd drive (neither do he have a usb cd/dvd drive). The OS wasn't working fine, so we decided to restore the system using the provided OS backup from HD. But midway to installation it was interrupted and the computer was restarted (not h/w or s/w issue but we did it). Now we cannot run the backup and we also tried to install windows 7 through USB, but as soon as we start to install the OS, it says that some device driver is missing. It turns out that the OS needs usb device driver to continue. It has USB 3.0 maybe thats why the OS needs the driver. I tried disabling 3.0 and enabling 2.0 but then it does not boot from USB drive for some reason. We are stuck with this. The backup doesn't runs and when booting from USB it says that it needs device driver. Anyone has any idea what we should do?

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Reimage PC: Myth or Fact to speeding up a slow PC?

- by sunpech

I have a 4-5 year old PC running Windows XP for software development at work. It struggles to run all development tools I need at the same time. Management feels I need to reimage my computer to "speed it up". The last time it was imaged was about 3 years ago. What resources books, websites, blogs, articles, etc are out there that supports/debunks this well known belief that reimaging an old PC running Windows XP will make it faster once again? A resource I remember reading is from Lifehacker.com: Windows Maintenance Tips: The Good, Bad And Useless

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Why can't I run Compiz?

- by jasoncruz98

I installed Ubuntu 11.10 on my laptop. The main reason I switched to Ubuntu is because I wanted to use Compiz. The first thing I did was to go to Additional Drivers and install ATI/AMD Proprietary FGRLX Graphics Driver. There was also another one available, ATI/AMD Proprietary FGRLX Graphics Driver (post-release updates), but I didn't install that one, because it basically meant the same thing to me as the one I already installed. Next, I went to the ubuntuguide.org Oneiric Wiki http://ubuntuguide.org/wiki/Ubuntu:Oneiric#Compiz_Fusion So I followed the instructions there and ran this command in terminal: sudo apt-get install compiz compizconfig-settings-manager compiz-fusion-plugins-main compiz-fusion-plugins-extra emerald librsvg2-common But then, the terminal window said that the package "emerald" could not be found. So, I ran this command instead: sudo apt-get install compiz compizconfig-settings-manager compiz-fusion-plugins-main compiz-fusion-plugins-extra After that, I installed Fusion Icon by running this command: sudo apt-get install fusion-icon I restarted my computer, searched for Compiz Config Settings Manager, and clicked on it. Then, I activated Wobbly Windows. I logged off and logged back on again, but there was no wobbly windows effect. So I tried clicking on Fusion Icon, but it never started. Can someone please tell me what I did wrong here? Because I see everyone seems to be able to run Compiz except me. I really need to start Compiz, or else I think I'm going to uninstall Ubuntu.

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To my lola

- by Erik Araojo

Originally posted on: http://geekswithblogs.net/Erik/archive/2013/06/29/153290.aspx I've been staring at the computer for a few minutes now and I honestly don't know what to write. First I thought of writing about myself, where I was born, where I studied, where I am now... but that seems shallow. Now that I thought about it. I'd rather not talk about who I am because it seems irrelevant right now. What I really want to say is..I'm sad. Been like this for quite some time now.Nobody knows I'm sad.I tried telling my wife but I guess she didn't think it was serious. We were having a fight when I told her so she probably thought I was just making up an excuse for my behavior. And besides, she's not the kind of person who'd put my interests before hers especially when she's got lots of things on her mind.I'm not sad every single day. Some days I'm perfectly fine. I actually have no idea when I'd feel sad. It just happens. I'd wake up cheerful and then before I go to bed I already feel depressed. I have no idea what triggers it. On the bed, I'd turn my back to my wife, curl up into a fetal position and start sobbing silently. Awful. Maybe you're wondering now what's the cause of all this.My grandma passed away and I haven't completely come to terms with that fact. I long to see her, talk to her and hold her... but I can't do that anymore because she's gone. I will never be able to hear her voice and feel her touch again. To make matters worse, the only person whom I wish would stay beside me whenever I'm feeling miserable and dejected is never around. She's either working late or out with her friends. Such is my life at the moment. I doubt it will improve anytime soon.

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Simple SSH public/private key question

- by James R.

I am trying to learn this instead of just following guides so I can recommend proper actions when people do ask (and they do). Here is what I got down. First, generate both key with command such as this: ssh-keygen -b 2048 -t rsa -C comment -f ~/.ssh/id_rsa Then you push the public part of the key into authorized_keys2 file cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys2 (and then chmod it to 600 or similar) And you download the private key to your computer (id_rsa) and feed that in to Putty to be read and authenticate. Are these the correct steps to setting this public/private key authentication for passwordless login to SSH?

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ffserver - streaming problem transcodation for input

- by zozo

Good day to all. I have a little problem. I'm trying to stream something from a cam to a server and then forward to... somewhere (it will be a site or something). On the computer that I have the cam connected to I use vlc to stream it to the server and there I try to get the stream as an input for a ffserver. The problem is that ffserver doesn't detect the input (regardless of the protocol I use (udp, rtp, etc.)). I suspect a transcoding problem or something like that but I can't find any documentation about that so... Does any1 know what transcodation I should use? Thank you for help and have a great day.

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Crystal Reports 8 - Error 533 PESStartPrintJob

- by Federico Giust

We have on the company I work for an application built in Delphi V with Crystal Reports 8. We all know that Crystal & Delphi can be temperamental sometimes and the worst thing is, nearly no detail on the error. Also there is a big lack of documentation on the web about this. There's lot of people with similar issue but no solution. The error I'm talking about in particular is the one on the image below. This happens when trying to print any Crystal Reports on screen. This has happened sometimes in the clients computer and it was hard for us to replicate on our environment. Since it's an old version of Crystal it is very hard to find any helpful documentation to know the exact source of the problem.

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How to make a folder (D:\xyz) accessible to only me in Windows-XP?

- by claws

Hello, I'm using Windows XP on my lab computer. There is a global folder (d:\xyz). This is my folder and I want this folder to be accessible to only me. It should be invisible even if it is visible they shouldn't be able to open this folder. For now my account has administrative privilages. After few days, I don't know if the Admin lets me have these privilages or not. I heard that soon our XP machines will be upgraded to either vista or windows 7. Will the method of making folder in accessible change for other Windows OSes? How to accomplish this?

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Keep your Root Authorities up to date

- by John Breakwell

Originally posted on: http://geekswithblogs.net/Plumbersmate/archive/2013/06/20/keep-your-root-authorities-up-to-date.aspxBy default, Windows will automatically update it’s internal list of trusted root authorities as long as the Update Root Certificates function is installed. This should be enabled by default and takes manual intervention to remove it. With this component enabled, the following happens: If you are presented with a certificate issued by an untrusted root authority, your computer will contact the Windows Update Web site to see if Microsoft has added the CA to its list of trusted authorities. If it has been added to the Microsoft list of trusted authorities, its certificate will automatically be added to your trusted certificate store. If the component is not installed and a certificate from an untrusted CA is encountered then the following text will be seen: This is an inconvenience for the person browsing the site as they need to click to continue. Applications, though, will be unable to proceed and will throw an exception. Example: ERROR_WINHTTP_SECURE_FAILURE 12175 (0x00002F8F) One or more errors were found in the Secure Sockets Layer (SSL) certificate sent by the server. If you look at the certificate’s properties, you can see the “Issued by:” value: This must match a Trusted Root Certificate Authority in the current user’s certificate store. So turn on automatic updating of trusted root authority certificates. For Windows Vista and above, this option is controlled through Group Policy. See the “To Turn Off the Update Root Certificates Feature by Using Group Policy” section of the following Technet article: Certificate Support and Resulting Internet Communication in Windows Vista If Windows Update is a blocked site then download and deploy the latest pack of root certificates from Microsoft: Update for Root Certificates For Windows XP [May 2013] (KB931125) Failing that, find a machine that has the latest root certificates installed and export them from there: Open up the Certificates console. Right-click the required Trusted Root Certificate Authority certificate Choose Export from “All Tasks” to open up the Certificate Export Wizard Choose an export file format – DER should be fine Provide a file name and complete the export. Move the file to the machine that’s missing the certificate Right-click the file and choose “Install Certificate” to open up the Certificate Import Wizard Allow the wizard to automatically select the certificate store and complete the import On a side note, for troubleshooting certificate issues it can be helpful to clear the SSL state:

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External Hardrive Not Reconized on Windows 7 at all

- by Bella

I Have a NextStar 2/5" from Vantec and its an 80G HD. I have used it many times on windows xp and it works fine. We just recently upgraded to windows 7 home premium and when I plug it in it beeps many times. I've tried all the USB plugs in my computer and its not those plugs. Haven't tried eSata because it uses a weird cable to plug into. People told me that when it beeps everything is corrupted, but works fine on xp. I tried installing the drivers online from their website and when I try it asks me to put in a cd which makes no sense because they are online drivers. When I go into device manager nothing comes up, it just acts like the HD is invisible. The beeping will stop eventually as it is plugged in, but with no result.

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