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  • Just updated, after reboot my computer won't start up again

    - by Alex
    I have a macbook that I use on occasion which dual boots Ubuntu and OSX (It has rEFIt installed). I turned it on for the first time in a while and it needed a bunch of updates. So I let it run, and restarted it when it asked. When it was booting up, it got stuck at a light blue screen. There was nothing on the screen to indicate that it was doing anything - I figured it just got stuck or something, so I turned it off and back on. (I suspect now it was actually working, but I had no indication that it hadn't just frozen) Now I can't access either OSX or my Ubuntu partition. When I choose ubuntu on the rEFIt menu, it shows "No bootable device -- insert book disk and press key". If I try to start up OSX is looks like it starts loading, but instead of an apple logo there's a crossed out circle icon.

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  • HTC Trophy not detected

    - by Earl Larson
    When I plug in the device via USB chord, nothing happens and the device is not shown on the desktop. However, when I type "lsusb" into a terminal this is the output: Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 002: ID 04f2:b249 Chicony Electronics Co., Ltd Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 005: ID 045e:04ec Microsoft Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub I'm assuming Microsoft Corp. is the device but why isn't Ubuntu displaying it on the desktop?

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  • Why are group policy preference drive mappings not applied to the domain administrator account?

    - by Saariko
    I have a working policy on my entire domain. I just found out, when logging with the domain administrator, that this policy is not applied (EDIT: Running : gpresult shows that the GPO's are applied - but, this GPO is for Drive Mappings, and the actual drive mappings are NOT shown) The administrator account - does not have any login script on his profile tab. To note: The mappings were applied before the GPO with a login script using the : net use ... command - all was working perfectly and correctly for the domain administrator user as well - That removes sharing and security problem (IMO) My GPO's are mainly small/atomic settings: single GPO to handle each settings: UAC, Firewall, printers. GPO status for the object is enabled That's an overview of the Drive Maps: Reading on MS support site, I checked the delegation tab, and it is marked as applied to domain and enterprise admins. Every user gets these policies correctly. The OU that is set is the root of the domain. (for testing purpose - I did that to eliminate hierarchy issues - did not help) Block Inheritance is disabled. (never used it anyway) GPO link GPO Security Filterings

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  • Selenium server won't start

    - by moff
    I'm getting the following error when trying to start selenium: C:\Temp\selenium-server-1.0.3java -jar selenium-server.jar 22:02:07.615 INFO - Java: Sun Microsystems Inc. 16.0-b13 22:02:07.617 INFO - OS: Windows 7 6.1 x86 22:02:07.625 INFO - v2.0 [a2], with Core v2.0 [a2] 22:02:07.811 INFO - RemoteWebDriver instances should connect to: http://127.0.0. 1:4444/wd/hub 22:02:07.813 INFO - Version Jetty/5.1.x 22:02:07.815 INFO - Started HttpContext[/selenium-server/driver,/selenium-server /driver] 22:02:07.817 INFO - Started HttpContext[/selenium-server,/selenium-server] 22:02:07.818 INFO - Started HttpContext[/,/] 22:02:07.866 INFO - Started org.openqa.jetty.jetty.servlet.ServletHandler@2bbd86 22:02:07.867 INFO - Started HttpContext[/wd,/wd] 22:02:07.870 WARN - Failed to start: [email protected]:4444 Exception in thread "main" org.openqa.jetty.util.MultiException[java.net.SocketE xception: Unrecognized Windows Sockets error: 0: JVM_Bind] at org.openqa.jetty.http.HttpServer.doStart(HttpServer.java:686) at org.openqa.jetty.util.Container.start(Container.java:72) at org.openqa.selenium.server.SeleniumServer.start(SeleniumServer.java:3 96) at org.openqa.selenium.server.SeleniumServer.boot(SeleniumServer.java:23 4) at org.openqa.selenium.server.SeleniumServer.main(SeleniumServer.java:19 8) java.net.SocketException: Unrecognized Windows Sockets error: 0: JVM_Bind at java.net.PlainSocketImpl.socketBind(Native Method) at java.net.PlainSocketImpl.bind(Unknown Source) at java.net.ServerSocket.bind(Unknown Source) at java.net.ServerSocket.(Unknown Source) at org.openqa.jetty.util.ThreadedServer.newServerSocket(ThreadedServer.j ava:391) at org.openqa.jetty.util.ThreadedServer.open(ThreadedServer.java:477) at org.openqa.jetty.util.ThreadedServer.start(ThreadedServer.java:503) at org.openqa.jetty.http.SocketListener.start(SocketListener.java:204) at org.openqa.jetty.http.HttpServer.doStart(HttpServer.java:716) at org.openqa.jetty.util.Container.start(Container.java:72) at org.openqa.selenium.server.SeleniumServer.start(SeleniumServer.java:3 96) at org.openqa.selenium.server.SeleniumServer.boot(SeleniumServer.java:23 4) at org.openqa.selenium.server.SeleniumServer.main(SeleniumServer.java:19 8) Java is installed: C:\Temp\selenium-server-1.0.3java -version java version "1.6.0_18" Java(TM) SE Runtime Environment (build 1.6.0_18-b07) Java HotSpot(TM) Client VM (build 16.0-b13, mixed mode, sharing) Thanks in advance

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  • Wireless device not working...supposed problem with b43 driver

    - by Francesco
    I just installed Xubuntu 11.10 onto an old Acer Aspire 3003wlmi. The wireless card is not working. I did all the passages illustrated in the troubleshooting guide but I came up with nothing. It says that driver is b43, but when I booted from the installation cd I noted down some messages saying "Error - b43/ucode " and "Error b43/phy_...something". I had Ubuntu 10.10 installed before and I remember I had similar problems but I don't remember how to solve it. If you please can help me. thanks a lot. Francesco

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  • Today's Links (6/30/2011)

    - by Bob Rhubart
    James Gosling Says He Doesn't Care About Java But here's the rest of the story: "What I really care about is the Java Virtual Machine as a concept," says Gosling, "because that is the thing that ties it all together; it's the thing that makes Java the language possible; it's the thing that makes things work on all kinds of different platforms; and it makes all kinds of languages able to coexist." Virtual Developer Day: SOA Accelerate Your Development with Oracle SOA Suite. Learn how in this FREE on-line workshop with Hands-on labs July 12th 9 am to 1:30 PM PST" July 12th 9 am to 1:30 PM PST Podcast: Toronto Architect Day Panel Discussion Part 3 (of 4) is now available, in which the panel (including Oracle ACE Director Cary Millsap and InfoQ editor and co-founder Floyd Marinescu) discusses public vs private cloud as the best strategy for small businesses and start-ups. WebLogic Weekly for June 27th, 2011 | James Bayer Bayer shares the latest resources for those with WebLogic on the brain. Griffiths Waite at Oracle Open World | Mark Simpson Oracle ACE Director Mark Simpson share information on the presentations he's scheduled to give at Oracle OpenWorld San Francisco 2011. Kscope Solid Service Bus Implementations Peter Paul van de Beek's Kscope11 presentation "is aimed at supporting architects and especially developers to choose the right integration infrastructure for a job." Migration To Java EE 6 With Spring 3 - ...Could Become "Interesting" | Adam Bien "Put simply, big data implies datasets so large they can't normally be processed using a standard transactional database," says David Dorf. "The term 'noSQL' is often used in this context as well." Book Review: "Designing With the Mind In Mind" | Abhinav Agarwal According to Abhinav Agarwal, Jeff Johnson's new book is about "the theory of how the mind perceives information, of how humans understand what they read, and how our eyes are attuned to paying attention to not just what's happening in front of us but also at the periphery of our vision." BPM 11g Advanced Workshop | Martien van den Akker Martien van den Akker shares his thoughts on both the workshop he recently attended and on the Oracle BPM 11g product. Fusion Applications - What You Need To Know: Product Families | Floyd Teter "Fusion Applications are organized into seven groups of related products called Product Families," observes Oracle ACE Director Floyd Teter. "While the product features are organized according to the Business Process Model and can cross the boundaries of product families, the product family groupings are an easy way to wrap your mind around Fusion Apps." Grid Control: Refreshing Weblogic Domains | Dave Best Dave Best shares tips for avoiding problems when using grid control to centrally manage/monitor your environment. Webcast: Oracle to Announce Datanomic Integration Plans The combination of Datanomic technology and the previous acquisition of Silver Creek Systems will deliver a complete, integrated and best-of-breed solution for Data Quality. Learn about Oracle’s strategy and product plans and how the new products acquired from Datanomic will impact your organization. July 19, 2011, 8:00am PT / 11:00am ET. Speakers include Michael Weingartner (Vice President, Product Development, Oracle), Martin Boyd (Senior Director, Product Strategy, Oracle), and Dain Hansen (Director, Product Marketing, Fusion Middleware, Oracle).

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  • Duke's Choice Award Ceremony

    - by Tori Wieldt
    The 2012 Duke's Choice Awards winners and their creative, Java-based technologies and Java community contributions were honored after the Sunday night JavaOne keynotes. Sharat Chander, Group Director for Java Technology Outreach, presented the awards. "Having the community participate directly in both submission and selection truly shows how we are driving exposure of the innovation happening in the Java community," he said. Apache Software Foundation Hadoop Project The Apache Software Foundation’s Hadoop project, written in Java, provides a framework for distributed processing of big data sets across clusters of computers, ranging from a few servers to thousands of machines. This harnessing of large data pools allows organizations to better understand and improve their business. AgroSense Project Improving farming methods to feed a hungry world is the goal of AgroSense, an open source farm information management system built in Java and the NetBeans platform. AgroSense enables farmers, agribusinesses, suppliers and others to develop modular applications that will easily exchange information through a common underlying NetBeans framework. JDuchess Rather than focus on a specific geographic area like most Java User Groups (JUGs), JDuchess fosters the participation of women in the Java community worldwide. The group has more than 500 members in 60 countries, and provides a platform through which women can connect with each other and get involved in all aspects of the Java community. Jelastic, Inc. Moving existing Java applications to the cloud can be a daunting task, but startup Jelastic, Inc. offers the first all-Java platform-as-a-service (PaaS) that enables existing Java applications to be deployed in the cloud without code changes or lock-in. Liquid Robotics Robotics – Liquid Robotics is an ocean data services provider whose Wave Glider technology collects information from the world’s oceans for application in government, science and commercial applications. The organization features the “father of Java” James Gosling as its chief software architect. London Java Community The second user group receiving a Duke’s Choice Award this year, the London Java Community (LJC) and its users have been active in the OpenJDK, the Java Community Process (JCP) and other efforts within the global Java community. NATO The first-ever Community Choice Award goes to the MASE Integrated Console Environment (MICE) in use at NATO. Built in Java on the NetBeans platform, MICE provides a high-performance visualization environment for conducting air defense and battle-space operations. Parleys.com E-learning specialist Parleys.com, based in Brussels, Belgium, uses Java technologies to bring online classes and full IT conferences to desktops, laptops, tablets and mobile devices. Parleys.com has hosted more than 1,700 conferences—including Devoxx and JavaOne—for more than 800,000 unique visitors. Student Nokia Developer Group This year’s student winner, Ram Kashyap, is the founder and president of the Nokia Student Network, and was profiled in the “The New Java Developers” feature in the March/April 2012 issue of Java Magazine. Since then, Ram has maintained a hectic pace, graduating from the People’s Education Society Institute of Technology in Bangalore, India, while working on a Java mobile startup and training students on Java ME. United Nations High Commissioner for Refugees The United Nations High Commissioner for Refugees (UNHCR) is on the front lines of crises around the world, from civil wars to natural disasters. To help facilitate its mission of humanitarian relief, the UNHCR has developed a light-client Java application on the NetBeans platform. The Level One registration tool enables the UNHCR to collect information on the number of refugees and their water, food, housing, health, and other needs in the field, and combines that with geocoding information from various sources. This enables the UNHCR to deliver the appropriate kind and amount of assistance where it is needed. You can read more about the winners in the current issue of Java Magazine.

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  • Is it bad to have an "Obsessive Refactoring Disorder"?

    - by Rachel
    I was reading this question and realized that could almost be me. I am fairly OCD about refactoring someone else's code when I see that I can improve it. For example, if the code contains duplicate methods to do the same thing with nothing more than a single parameter changing, I feel I have to remove all the copy/paste methods and replace it with one generic one. Is this bad? Should I try and stop? I try not to refactor unless I can actually make improvements to the code performance or readability, or if the person who did the code isn't following our standard naming conventions (I hate expecting a variable to be local because of the naming standard, only to discover it is a global variable which has been incorrectly named)

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  • Guidance on building an au pair-to-family networking site.

    - by Philip Kidd
    I'm building a website for an au pair agency business that will connect au pairs to families around Europe. I know nothing about website building, HTML etc. so I'm using a wysiwyg editer (weebly). How I would like the site to function: Families upload their information into profiles Au pairs do the same families can view a limited part of an au pairs' profile until they pay a deposit After deposit is payed, all au pairs' profile information becomes open to families Families can order au pairs and confirm their order with another payment payment must be made before 'order' is confirmed By 'order' I mean full communications become open between the family and the au pair they have 'ordered' as well as travel information being sent to another agency the site needs to be linked with a bank account (e.g paypal) and another agency, who will look after the flight bookings etc. A website already exists for this business however it just contains information on the business and application forms - if the site becomes fully automated it will relieve a lot of strain on administration in the office (dealing with applications, travel information etc.)

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  • How do I make music sync with iOS 5 in Ubuntu 11.10 work?

    - by Alex Cristian
    I've tried several tutorials on the internet but nothing works. This is not a duplicate, it is true that there are several of them about ios5 but not one of them asks specifically about music syncing or ubuntu oneiric ocelot... I'm just so angry at Apple because of this, my iPod classic syncs just fine with Banshee but my iPad 2 won't, because they suddenly decided to change how uploading music to their app works in ios5. I looked around and saw that an unstable libimobiledevice-1.1.2. was available, but I can't manage to install it! It's a nightmare, any help would be greatly appreciated.

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  • How can I prevent HTTPS on another domain from wrongly showing on my HTTP-only domain?

    - by Earlz
    So, I have a blog at domain.com. This blog is HTTP-only because I would gain almost nothing from adding SSL support. I have a web service now that I want to enable SSL support on that runs on the same server and IP address as my blog. I got it all working pretty easily, but not if I go to https://domain.com I will see a huge warning about an SSL certificate error and then if I click "ok" through the warning, I'll see the web service with SSL support, not my blog. My biggest fear with this scheme is Google indexing an HTTPS version of it and penalizing my blog because the content between the two doesn't match. How can I somehow for my blog's domain to either not serve anything on HTTPS, or to redirect back to my HTTP blog, or to serve my blog, but with an invalid SSL certificate? What can I do, preferably without buying another dedicated IP for my website?

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  • Do I need a degree in Computer Science to get a junior Programming job?

    - by t84
    Do I need to go to Uni to get a job as a Junior C# coder? I'm 26 and have been working in Games (Production) for 6 years and I am thinking of a change, I've had exposure to VB6, VBA, HTML, CSS, PHP, JavaScript over the past few years and did a web design NCFE at College, but other than that, nothing else! I'm teaching myself C# at the moment with books and I was wondering 'how much' I need to learn and also how I can improve my chances of getting a programming job! Am I a late started to learn coding? (I know many people who started at a very young age!) Thanks for the help :)

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  • about permssion

    - by Gitesh
    I am really new to ubuntu (12.04) to automount my drive I added this line to fstab /dev/sda4 /media/FF15-ED92 vfat defaults 0 0 But now when I want to delete a directory or a file it doesn't delete like using del key of keyboard so right clicked on that directories and files but there was no option to delete and move to trash was also not clickable. So how can I give myself permissions to do this. Also I can't do this on my pen drive also. I tried this but nothing happened sudo chmod 777 /media/44gb if I change from chmod to chown then it gives that changing ownership of `/media/44gb': Operation not permitted

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  • Robocopy failure with Windows Server 2008 Scheduled Task

    - by CC
    So I have a batch script for robocopy. Running this from the command line does exactly what I want. robocopy "D:\SQL Backup" \\server1\Backup$\daily /mir /s /copyall /log:\\lmcrfs4g\NavBackup$\robocopyLog.txt /np Then I create a Scheduled Task in Windows Server 2008. If I set up the task to use my Domain Admin account, great. But I'm trying to get it to run as a separate domain account for Scheduled Tasks. If I use that account, folders get created, but files aren't copied. I get the following error: 2011/02/17 15:41:48 ERROR 1307 (0x0000051B) Copying NTFS Security to Destination Directory D:\SQL Backup\folder\ This security ID may not be assigned as the owner of this object. I've verified my domain\Scheduled Tasks account has Full Control NTFS permissions on both the source and destination, and the Full Control Sharing on my hidden \server1\backup$ share. Just for giggles, I've tried adding the domain account to the local Administrators group on both servers. This works fine, but that seems like a lot of privileges just to copy files. Any ideas on what I'm missing?

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  • How To Use Google Drive on Linux: 2 Unofficial Solutions

    - by Chris Hoffman
    When Google announced Google Drive, they promised Linux support. That was about 7 months ago. While Google said Google Drive for Linux was “still a priority” back in July, it seems it’s no longer a priority. If you want to use Google Drive on Linux, both Insync and grive can bring Google Drive to Linux. They’re not official, but they’re better than nothing if you’re waiting for an official client. How To Boot Your Android Phone or Tablet Into Safe Mode HTG Explains: Does Your Android Phone Need an Antivirus? How To Use USB Drives With the Nexus 7 and Other Android Devices

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  • How *not* to handle a compensation step on failure in an SSIS package

    - by James Luetkehoelter
    Just stumbed across this where I'm working. Someone created a global error handler for a package that included this SQL step: DELETE FROM Table WHERE DateDiff(MI, ExportedDate, GetDate()) < 5 So if the package runs for longer than 5 minutes and fails, nothing gets cleaned up. Please people, don't do this... Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!...(read more)

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  • ArchBeat Link-o-Rama for 2012-06-26

    - by Bob Rhubart
    Software Architecture for High Availability in the Cloud | Brian Jimerson Brian Jimerson looks at the paradigm shifts from machine-based architectures to cloud-based architectures when designing fault tolerance, and how enterprise applications need to be engineered to ensure the highest level of availability in the cloud. SOA, Cloud & Service Technology Symposium 2012 London - Special Oracle Discount Registration is now open for one of the premier SOA, Cloud, and Service Technology events. Once again, the Oracle community is well-represented in the session schedule. And now you can save on registration with a special Oracle discount code. Progress 4GL and DB to Oracle and cloud | Tom Laszewski "Getting from client/server based 4GLs and databases where the 4GL is tightly linked to the database to Oracle and the cloud is not easy," says cloud migration expert Tom Laszewski. "The least risky and expensive option...is to use the Progress OpenEdge DataServer for Oracle." Embrace 'big data' now or fall behind the competition, analyst warns | TechTarget TechTarget's Mark Brunelli's story says, in essence, that Big Data is not your fathers Business Intelligence. Calculating the Size (in Bytes and MB) of a Oracle Coherence Cache | Ricardo Ferreira Ferreira illustrates a programmatic way to use the Oracle Coherence API to calculate the total size of a specific cache that resides in the data grid. WebCenter Portal Tutorial Part 7: Integrating Discussions and Link service | Yannick Ongena The latest chapter in Oracle ACE Yannick Ongena's ongoing series. How to Setup JDeveloper workspace for ADF Fusion Applications to run Business Component Tester? | Jack Desai Helpful technical tips from yet another member of the Oracle Fusion Middleware Architecture Team. Big Data for the Enterprise; Software Architecture for High Availability in the Cloud; Why Cloud Computing is a Paradigm Shift - And Why It Isn't This week on the OTN Solution Architect Homepage, along with an updated events list and this weeks list of selected community blog posts. Worst Practices for Big Data | Dain Hansen Dain Hansen shares some insight on what NOT to do if you want to captialize on Big Data. Free Virtual Developer Day - Oracle Fusion Development | Grant Ronald "The online conference will include seminars, hands-on lab and live chats with our technical staff including me!" says Grant Ronald. "And the best bit, it doesn't cost you a single penny. It's free and available right on your desktop." Penguin is Getting Ready for Oracle OpenWorld 2012 | Zeynep Koch Linux fan? Check out Zeynep Koch's post for a list of Linux-based sessions at Oracle OpenWorld 2012 in San Francisco. Amazon Web Services (AWS) Autoscaling | Frank Munz "Autoscaling on AWS can only be configured with lengthy commands from the command line but not from the web cased AWS console," says Frank Munz. "Getting all the parameters right can be tricky." He demonstrates one easy example in this video. Oracle Fusion Applications Design Patterns Now Available For Developers | Ultan O'Broin "These Oracle Fusion Applications UX Design Patterns, or blueprints, enable Oracle applications developers and system implementers everywhere to leverage professional usability insight," says O'Broin. How Much Data Is Created Every Minute? [INFOGRAPHIC] | Mashable Explaining what the "Big" in Big Data really means -- and it's more than a little mind-boggling. Thought for the Day "Real, though miniature, Turing Tests are happening all the time, every day, whenever a person puts up with stupid computer software." — Jaron Lanier Source: SoftwareQuotes.com

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  • cpu load measure with hyperthreading on linux

    - by dronus
    How can I get the true usage of a multicore hyperthreading enabled cpu? For example lets consider a 2 core CPU, expressing 4 virtual cores. A single threaded workload would now show up as 100% in top, as one core of the virtual cores is completely used. The CPU and top work as expected, like there would be 4 real cores. With two threads however, the things get arkward: If all works well, they are balanced to the two real cores, so we got 200% usage: Two times 100% and two idle virtual cores, and are using all of the available CPU power. Seems ok to me. However, if the two threads would run on a single real core, they would show up as using two times 100%, that makes 200% virtual core usage. But on the real side, that would be one core sharing its power on the two threads, which are then using only one half of the total CPU power. So the usage numbers shown by top can not be used to measure the total CPU workload. I also wonder how hyperthreading balances two virtual on a real core. If two threads take a different amount of cycles, would the virtual cores 'adapt' so that both show a 100% load even if the real load differ?

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  • Is Information Technology really Engineering?

    - by RPK
    While travelling I met a mathematician who was sitting near me. In a discussion he said: "...there is nothing like engineering in IT or rather programming". A true engineering is what Architecture is, what Electrical and Mechanical is. It made me think and I was puzzled. A percent of my brain agreed also because in Indian Army, there is no subject like Computer Engineering in the Engineering Corps. They don't consider programming as engineering. This is what I heard few years back, I don't know what Indian Army thinks now. What are your views?

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  • Doing "it all from scratch" is different than OS-specifics

    - by Bigyellow Bastion
    Many people tell me that in order to write my own operating system I need to understand the inner-workings of the one I'll be writing it on. That's nonsense. I mean I understand it for education purposes, such as studying the workings of a current OS to gain better knowledge of writing one myself. But the OS I'm writing it on is nothing but my scratchpad offering me software to write the code in, and software to assemble/compile my code into executable instructions. I've been told that I need to decide which OS I'm writing it on before I write it, but all I need is an assembler to produce flat binary, or a compiler to produce object code and a linker to link it into a flat binary .bin file. Why do people say it matters which OS you make an OS on, when it doesn't?

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  • SBS 2011 Essentials and too many new Mac users

    - by Harry Muscle
    We currently have about 15 users on a Windows SBS 2011 Essentials Server. I've just been informed that we plan to bring aboard about 15 more users that will be using Macs. We'll be using a Mac Server to manage the 15 new Macs, however, I'm looking for advice on how to best set this all up. Ideally I would just add the 15 new Mac users to Active Directory and setup the Mac Server to authenticate against AD, unfortunately the SBS 2011 Essentials Server has a limit of 25 users, so adding these new users to AD won't work unless we upgrade the Windows server (which I'd rather avoid since it's a lot of work and a lot of money). That leaves the option of creating user accounts for these 15 Mac users on the Mac Server only. The problem that this creates though is how do I share files been Mac users and Windows users since they are now using different systems for network authentication. Any advice (short of upgrade to SBS Standard) is highly appreciated. Thanks, Harry P.S. We don't run Exchange or anything else on our server ... it's mainly used for file sharing and enforcing security via group policies.

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  • 3 Servers, is this is a cluster?

    - by Andy Barlow
    Hello, At the moment I have one Ubuntu server, 9.10, running with a simple Samba share, a mail server, DNS server and DHCP server. Mostly its just there for file sharing and email server. I also have 2 other servers that are exactly the same hardware and spec as the first, which have an rsync set up to retrieve the shared folders and backs them up. However, if the first server goes down, all of our shares disappear along with our mail and the system must be rebuilt. Also I tend to find if people are downloading a large amount from the file server, no-one can access there emails - especially in the morning when everyone is signing in at once. Would it be more beneficial for me to have all 3 servers, all running the same services, doing the same thing with some sort of cluster with load balancing? I'm not really sure where to begin looking, or how to go about such a setup where 3 servers are all identical, but perhaps one acts as the main load balancer?? If someone can point me in the right direction, or if this simply sounds like one of those Enterprise Cloud's that is now a default setup in Ubuntu Server 9.10+, then I'll go down that route. Cheers in advance. Andy

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  • Can't connect to Wireless Access Point after installing proprietary drivers

    - by user6554
    I had Windows Vista Basic installed on my computer and I replaced it with Ubuntu 10.10. I then preceded to do the following: I downloaded the wireless driver from 'additional drivers' I enabled my wireless card And now it won't connect to my router but my game systems will. Then I downloaded WiFi-Radar  which did not seem to fix the problem. I still cannot connect to the Internet. I have done an exhaustive search of the Internet and turned up nothing.

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  • Purpose of NOP instruction and align statement in x86 assembly

    - by alvonellos
    It has been a year or so since I last took an assembly class. In that class, we were using MASM with the Irvine libraries to make it easier to program in. After we'd gone through most of the instructions, he said that the NOP instruction essentially did nothing and not to worry about using it. Anyway, it was about midterm and he has some example code that wouldn't run properly, so he told us to add a NOP instruction and it worked fine. I asked I'm after class why and what it actually did, and he said he didn't know. Anybody know?

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  • Update Manager is in Launcher and Alt-Tab list, but I can't switch to it

    - by Jeff
    The Update Manager recently started itself and found two updates. I can tell by the icon in the launcher. The icon has a (2) on it and a little white arrow saying the application is running. I can also see the update-manager process in a 'ps -A' list. Alt-Tab also shows the Update Manager. The problem is I can't get Update Manager to show up. If I click on the icon or Alt-Tab to it, nothing happens. I've never had any issues starting it manually, but when it starts on it's own after finding an update, I can't switch to it. What can I try to make this work better?

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