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• Why will Screenshot not show up in Dash?

  - by Bruce

  I'm relatively new to Ubuntu, and am running into a problem I've not seen before. This is on an Ubuntu 12.04 system. I can't find Screenshot. I'm trying to take a shot of a screen from a web page, go to Dash, type in Screenshot, and nothing shows up. I've done this many times before, but suddenly Screenshot is not found. I downloaded an app called Shutter, it seems to have installed just fine, but like Screenshot, I don't know how to find it. Dash reveals nothing. In Dash, I've noticed that I have no applications showing up in response to a search. For instance, I can type Firefox, and get no results either, even though I'm using Firefox to submit this question. Is there something I can do to get Dash to show applications? Search results show only files and folders, and downloads. I did find one answer on Ask Ubuntu, which gave the following instructions: None of these fixes worked for me. But after more searching: rm ~/.cache/software-center -R worked like a charm. I did need to run: unity --reset & afterwards though, for the changes to take effect within dash, but the software center just started working straightaway. However, when I issued the unity --reset & command, it resulted in an internal error, and I'll have to reboot in order to reset my computer (which fortunately is allowing me to complete this question). So I'm still wondering why applications won't show in Dash, and will appreciate any help.

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• Is anyone familiar with this message in Kapersky Internet Security 2010?

  - by tintincutes

  Hi I just started my computer up & opened a website for my checking my mail, when I opened a Kaspersky Internet Security 2010 window popped up. C:\Documents and Settings\username\Local Settings\Application Data\Mozilla\Firefox\Profiles\rse47wp8.default\Cache\C\79\D5CC9d01 Does anyone is familiar with this? I checked the path and this path doesn't exist. I couldn't remember that I have a file of D5CC9d01 once. Can somebody please tell me if this is a virus or not? Thanks

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• IRQ Conflicts Causing Video Card and Boot Problems?

  - by sanpatricio

  tl;dr - I have 4 devices sharing 1 IRQ. Is this bad and how do I tell the BIOS to stop it? Background: I have an old Dell GX280 dual Pentium 4 that I (semi) resurrected last weekend with an installation of Ubuntu 12.04. Everything was going fine the first several hours until a problem that plagued me when WinXP was on that machine happened -- it froze. Completely froze. None of the myriad of ways I have found here on askubuntu helped me to regain control except a long-press of the power button to shut it off. Clearly, this wasn't a software/WinXP issue. After much googling, I found that hardware conflicts can often cause this sort of total lock-up and with all the odd blocks of yellow and flecks of color showing on my screen (both WinXP and Ubuntu) I figured my old GeForce 7600 was failing and causing me these odd issues. (A good canned-air dusting of the entire interior fixed the color fleck problem) Again, through much googling and numerous answers found on askubuntu, I somehow stumbled my way onto the lshw command. After going through it, line by line, I found that I have four devices sharing IRQ 16: eth0, wlan0, ide0 (DVD-RW), and my video card. In hindsight, I can recall weird instances of my Ethernet connection to another computer not working when I thought it should. I never full troubleshot those issues so it could be a coincidence. The other thing that has been plaguing me since installing Ubuntu (wasn't there during WinXP) has been periodic moments of my monitor getting no signal from Ubuntu during boot. The first couple days, it would disappear after the Dell boot screen and reappear at Ubuntu login. Now, it disappears after the Dell boot screen and doesn't return at all -- I have to hit F12 where I can load a safe mode version of Ubuntu and get more details like dmesg and lsdev. I also ran memtest86 overnight and woke up to zero errors, so failing RAM is out. Where do I go from here?

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• NetBeans has broken interface with OpenJDK

  - by Krzysztof Stanislawek

  Sorry for English. Usually (say, at 4/5 of times), when I start NetBeans, interface is partially broken. For example, menu items are appearing and at once disappearing after click; some parts of editor are also blocked for cursor actions. Another issue is broken Options window - I can show it only once for NetBeans execution. There are more similar issues. $ java -version java version "1.7.0_55" OpenJDK Runtime Environment (IcedTea 2.4.7) (7u55-2.4.7-1ubuntu1~0.13.10.1) OpenJDK 64-Bit Server VM (build 24.51-b03, mixed mode) Version of NetBeans is 7.0.1. Linux version is Mint 16. I use Mate. I had the same issue at other computer, at the same operating system. I know that installing Sun version of Java could help, but I also know that there shouldn't be such issue with OpenJDK. Also, I had other problem with NetBeans and Sun Java 8 - NetBeans suddenly crashed before he fully started, so I want to stick with OpenJDK. What causes my problem? Should I use other version of NetBeans/OpenJDK?

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• How to target just one search engine and optimise for that

  - by mickburkejnr

  I've been dabbling with SEO a lot in the last 6 months, and one thing that has surprised me is the disparity between Google and Bing in the way they deliver results. A website ranked for a specific keyword/phrase on Google may rank 3rd on the first page, but using the same keyword/phrase on Bing will display the same website but ranked 15th for the exact same keyword/phrase. I came up with the idea to increase traffic to my website by targetting Bing instead of Google for several reasons. The biggest one is that while it's not the biggest search provider, people still use it, and I feel that if other websites have been "neglected" and not optimised for Bing my website would stand a better chance of getting near the top of their search rankings. The question is though how would I do this? A lot of the SEO advice on the internet is generic, but I can't help feeling it's Google orientated for obvious reasons. How could I optimise my website to be Bing friendly, rather than Google friendly? I know it sounds like suicide as I'm taking myself out of the Google mindset, but I feel it could work wonders for traffic to the site.

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• My 2012 Professional Development Goals

  - by kerry

  Once again I am going to declare some professional goals for my upcoming year. Convert my blog to Jekyll hosted on github – I am tired of wordpress, tired of spam, and would like to try something new.  I have already started on this.  Just need to finish it up. Launch my GWT / Google App Engine application – I am currently developing a GWT application to be deployed to Google App Engine. Do another presentation at the user group – At least a few lightning talks.  I have a few ideas. Attend a tech conference – Dev Nexus is the likely target Post more often – I did 10 posts last year, would like to maybe double that next year (including this one) Attend a user group meeting outside of Nashville JUG – A rollover from last year, I will probably be regularly attend the Interactive Developers meeting Study another language – I have been thinking about looking in to Dart or perhaps Go Launch an Android app – Another holdover from last year I am thinking of doing a small app having to do with managing the silent state of the phone

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• ZSH - output whole history?

  - by GorillaSandwich

  I recently switched from bash to zsh. In bash one way (besides recursive search) that I used to find previously-run commands was history | grep whatever, where whatever is the bit of command I remember. In zsh, this isn't working. history returns only a few items, even though my .zsh_history file contains many entries, which I have configured it to do. How can I output my whole history, suitable for searching with grep? (Note: I started out using ryanb's dotfiles, so perhaps it's a problem with his default settings?)

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• mini-dinstall chmod 0600 changes file: Operation not permitted

  - by V. Reileno

  I'm getting "Operation not permitted" in the mini-dinstall.log everytime a new debian package has been uploaded on the custom debian repository using dput. The deb file is installed successfuly but the changes file remains in the incoming folder. I can not use a post-install script when the changes file can not be processed. How can I fix this problem? Traceback (most recent call last): File "/usr/bin/mini-dinstall", line 780, in install retval = self._install_run_scripts(changefilename, changefile) File "/usr/bin/mini-dinstall", line 826, in _install_run_scripts do_chmod(changefilename, 0600) File "/usr/bin/mini-dinstall", line 193, in do_chmod do_and_log('Changing mode of "%s" to %o' % (name, mode), os.chmod, name, mode) File "/usr/bin/mini-dinstall", line 176, in do_and_log function(*args) OSError: [Errno 1] Operation not permitted: '/srv/debian-repository/mini-dinstall/incoming/debian-repository_1.3_amd64.changes' The mini-dinstall permissions: ls -lad incoming/ drwxrws--- 2 mini-dinstall debian-repository-uploader 4096 Jun 6 11:45 incoming/ ls -la incoming/debian-repository_1.3_amd64.changes -rw-rw---- 1 uploader-user debian-repository-uploader 1322 Jun 6 11:43 incoming/debian-repository_1.3_amd64.changes groups uploader-user uploader-user : uploader-user adm users debian-repository debian-repository-uploader puppet-client-updater groups mini-dinstall mini-dinstall : mini-dinstall debian-repository-uploader Cheers and thanks V.

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• How to manage many mobile device users at server side?

  - by Rami

  I built a social Android application in which users can see other users around them by GPS location. At the beginning thing went well as I had low number of users, but now that I have increasing number of users (about 1500 +100 every day) it has revealed a major problem in my design. In my Google App Engine servlet I have static HashMap that holds all the users profiles objects, currently 1500 and this number will increase as more users register. Why I'm doing it? Every user that requests for the users around him compares his GPS with other users and checks if they are in his 10km radius. This happens every five minutes on average. Consequently, I can't get the users from db every time because GAE read/write operation quota will tear me apart. The problem with this design is? As the number of users increases, the Hashmap turns to null every 4-6 hours, I think that this time is getting shorter, but I'm not sure. I'm fixing this by reloading the users from the db every time I detect that it becomes null, but this causes DOS to my users for 30 sec, so I'm looking for better solution. I'm guessing that it happens because the size of the hashmap. Am I right? I have been advised to use a spatial database, but that means that I can't work with GAE any more and it means that I need to build my big server all over again and lose my existing DB. Is there something I can do with the existing tools? Thanks.

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• JDK8 New Build Infrastructure

  - by kto

  I unintentionally posted this before I verified everything, so once I have verified it all works, I'll updated this post. But this is what should work... Most Interesting Builder in the World: "I don't always build the jdk, but when I do, I prefer The New JDK8 Build Infrastructure. Stay built, my friends." So the new Build Infrastructure changes have been integrated into the jdk8/build forest along side the older Makefiles (newer in makefiles/ and older ones in make/). The default is still the older makefiles. Instructions can be found in the Build-Infra Project User Guide. The Build-Infra project's goal is to create the fastest build possible and correct many of the build issues we have been carrying around for years. I cannot take credit for much of this work, and wish to recognize the people who do so much work on this (and will probably still do more), see the New Build Infrastructure Changeset for a list of these talented and hard working JDK engineers. A big "THANK YOU" from me. Of course, every OS and system is different, and the focus has been on Linux X64 to start, Ubuntu 11.10 X64 in particular. So there are at least a base set of system packages you need. On Ubuntu 11.10 X64, you should run the following after getting into a root permissions situation (e.g. have run "sudo bash"): apt-get install aptitude aptitude update aptitude install mercurial openjdk-7-jdk rpm ssh expect tcsh csh ksh gawk g++ build-essential lesstif2-dev Then get the jdk8/build sources: hg clone http://hg.openjdk.java.net/jdk8/build jdk8-build cd jdk8-build sh ./get_source.sh Then do your build: cd common/makefiles bash ../autoconf/configure make We still have lots to do, but this is a tremendous start. -kto

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• Java Magazine: Developer Tools and More

  - by Tori Wieldt

  The May/June issue of Java Magazine explores the tools and techniques that can help you bring your ideas to fruition and make you more productive. In “Seven Open Source Tools for Java Deployment,” Bruno Souza and Edson Yanaga present a set of tools that you can use now to drastically improve the deployment process on projects big or small—enabling you and your team to focus on building better and more-innovative software in a less stressful environment. We explore the future of application development tools at Oracle in our interview with Oracle’s Chris Tonas, who discusses plans for NetBeans IDE 9, Oracle’s support for Eclipse, and key trends in the software development space. For more on NetBeans IDE, don’t miss “Quick and Easy Conversion to Java SE 8 with NetBeans IDE 8” and “Build with NetBeans IDE, Deploy to Oracle Java Cloud Service.” We also give you insight into Scrum, an iterative and incremental agile process, with a tour of a development team’s Scrum sprint. Find out if Scrum will work for your team. Other article topics include mastering binaries in Maven-based projects, creating sophisticated applications with HTML5 and JSF, and learning to program with BlueJ. At the end of the day, tools don’t make great code—you do. What tools are vital to your development process? How are you innovating today? Let us know. Send a tweet to @oraclejavamag. The next big thing is always just around the corner—maybe it’s even an idea that’s percolating in *your* brain. Get started today with this issue of Java Magazine. Java Magazine is a FREE, bi-monthly, online publication. It includes technical articles on the Java language and platform; Java innovations and innovators; JUG and JCP news; Java events; links to online Java communities; and videos and multimedia demos. Subscriptions are free, registration required.

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• Leaving the field of programming. What are the options?

  - by hal10001

  A lot of graduates ask about getting into this field, but I know there are times when I (as well as many others) think about leaving, too. My issue is that I love solving problems and the act of creating something that people enjoy using, and that is what keeps bringing me back. Lately, though, programming has become less of the act of creation and about solving problems, and has become more about being "a monkey at a keyboard". Can you offer any advice with regard to: What fields would offer equivalent problem-solving challenges consistently? How you would go about doing the research, or considering the career change? Basically anything else you think would be helpful in this situation. EDIT: I guess I should clarify and say that I've been in the field about 10 years, and I have had my fair share of working environments. The place where I am at now, and even the previous two jobs, the people I worked with have been great. I've been very lucky in that respect. I'm beginning to wonder if the next step for me has little to do with actual programming and more to do with business analysis or strategic consulting. I would hate to get too much onto the business side of things though, as I like being around tech folks more.

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• How do I change pages registering as 404 to 200

  - by christian

  I have this problem. After relaunching my site: http://www.kgstiles.com, traffic dropped immensely(about 60%). After troubleshooting for a week and a half - losing thousands of dollars off of lost traffic in the process, I found that Google was getting a 404 error at the end of many of my 301 redirects(so it wouldn't index the new pages). Most of of the pages, though, would register in my browser. They registered as a 404 error in Google's index as well as a 404checker. So my first question is: could this be what's causing my loss of traffic? and second: how do I fix it? I'm desperate! Any help is appreciated! # BEGIN s2Member GZIP exclusions <IfModule mod_rewrite.c> RewriteEngine On RewriteBase / RewriteCond %{QUERY_STRING} (^|\?|&)s2member_file_download\=.+ RewriteRule .* - [E=no-gzip:1] </IfModule> # END s2Member GZIP exclusions # BEGIN WordPress <IfModule mod_rewrite.c> RewriteEngine On RewriteBase / RewriteRule ^index\.php$ - [L] RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule . /index.php [L] </IfModule> <IfModule mod_rewrite.c> RewriteEngine On RewriteRule ^moreinfo/(.*)$ http://www.kgstiles.com/moreinfo$1 [R=301] RewriteRule ^healthsolutions/(.*)$ http://www.kgstiles.com/healthsolutions$1 [R=301] RewriteRule ^(.*)\.html$ $1/ [R=301,L] RewriteRule ^(.*)\.htm$ $1/ [R=301,L] </IfModule> # END WordPress

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• Accesing internet with Host-Only network VirtualBox

  - by Bibo

  I have two VMs in my VirtualBox. Both are FreeBSD and should communicate between each other. I have created network with DHCP enabled and set like this: Server Address 10.10.10.1 Server Mask 255.255.255.0 Lower Address Bound 10.10.10.100 Upper Address Bound 10.10.10.200 My VMs are pinging each other and getting right ip adress. This is what I must have and can´t change. Now I want to access internet from one VM and I found that I must use two network cards but I don´t know how to set the second one. I am new with VirtualBox and this stuff so if you count with this in you answer I would appreciate that. And I have Windows 8 as host system if it´s matter.

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• Speeding up Connection Between Computer and Wireless/Bridged Router

  - by Justian Meyer

  Hey everyone, I looked through other questions, but didn't find useful responses. Our main computer has a dl speed of 6 Mbps, but some of our other computers are getting only 40-200 Kb! The router is wireless, but all computers are connected using a Netgear Wall-Plugged Bridge XE102, which transmits information via the building's powerline. It can't be the hardware itself, however, because some computers still manage decent speeds. The computers afflicted are running on Microsoft XP Service Packs 2 and 3, but so are computers that are totally functional. These speeds severely impede on productivity and are excruciatingly frustrating when trying to cram in time in the early hours. Could it be an issue with the computer? Location? Router? Many thanks in advance, Justian

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• ArchBeat Link-o-Rama for October 23, 2013

  - by OTN ArchBeat

  Virtual Dev Day: Oracle ADF Development - Web, Mobile, and Beyond This free virtual event includes technical sessions that range from introductory to deep dive, covering Oracle ADF and Oracle ADF Mobile. Multiple tracks cover every interest and every level and include live online Q&A for answers to your technical questions. Register now! Americas: Tuesday, November 19, 9am-1pm PT / 12pm-4pm ET / 1pm-5pm BRT APAC: Thursday, November 21, 10am–1:30pm IST (India) / 12:30pm–4pm SGT (Singapore) / 3:30pm–7pm AESDT EMEA: Tuesday, November 26, 9am-1pm GMT / 1pm-5pm GST/ 2:30pm-6:30pm IST A Roadmap for SOA Development and Delivery | Mark Nelson Do you know the way to S-O-A? Mark Nelson does. His latest blog post, part of an ongoing series, will help to keep you from getting lost along the way. Updated ODI Statement of Direction | Robert Schweighardt Heads up Oracle Data Integrator fans! A new product statement of direction document is available, offering "an overview of the strategic product plans for Oracle’s data integration products for bulk data movement and transformation, specifically Oracle Data Integrator (ODI) and Oracle Warehouse Builder (OWB)." Java-Powered Robot Named NAO Wows Crowds | Tori Wieldt Java community manager Tori Wieldt interviews a robot and human. Nordic OTN Tour 2013 | Lonneke Dikmans Oracle ACE Director Lonneke Dikmans checks in from the Stockholm leg of the Nordic OTN Tour for 2013, sponsored by the Danish Oracle User Group and featuring fellow ACE Directors Tim Hall and Sten Vesterli, plus local speakers at various stops. Lonneke's post include the slides from three of the presentations. Thought for the Day "Some people approach every problem with an open mouth." — Adlai E. Stevenson23rd Vice President of the United States (October 23, 1835 – June 14, 1914) Source: brainyquote.com

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• How to start a service at boot time in ubuntu 12.04, run as a different user?

  - by Alex

  I have a server ClueReleaseManager which I have installed on a Ubuntu 12.04 system from a separate user (named pypi), and I want to be able to start this server at startup. I already have tried to create a simple bash script with some commands (login as user pypi, use a virtual python environment, start the server), but this does not work properly. Either the terminal crashes or when I try to ask the status of the service it is started and I am logged in as user pypi ...? So, here the question: What are the steps to take to make sure the ClueReleaseManager service properly starts up on boot time, and which I can control (start/stop/..) during runtime, while the service is running from a user pypi? Additional information and constraints: I want to do this as simple as possible Without any other packages/programs to be installed I am not familiar with the Ubuntu 12.04 init structure All the information I found on the web is very sparse, confusing, incorrect or does not apply to my case of running a service as a different user from root.

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• How to stop XBox Music commercials while playing music in collection?

  - by bill weaver

  So i decided to give Xbox Music a try, and played a song in my collection. Then moved to another song and a commercial started playing. Huh? Searching revealed others with this problem, but i didn't see any answers. Yes, i know Xbox Music plays commercials when streaming free music that you don't own, but this is mp3 music i own, on my hard drive, in my collection. MS claims "You’ll never get ads when you’re playing MP3s that are on your PC or when you’re playing music you bought from Xbox Music." (FWIW, this is running on Windows 8.1 Pro, though the problem seems to have been reported last year too, so it's probably not a new issue.)

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• How to reliably synchronise file servers between London and Shanghai?

  - by Andy S

  We have two offices, one in London and one in Shanghai, each needing to be able to access the same set of files. This means we need a solid, speedy means of synchronising a set of folders between servers at either office. They're likely to be Windows servers, but we could look at Linux boxes if the software side makes more sense on *nix. We've considered Rsync, Unison, Gluster, and a few other options, but none of them seem capable of reliably keeping the servers in sync between such distant office locations. Each office is on DSL connectivity over the open internet, so encryption is also a factor. Does anyone have any hints for getting the servers synchronising in as close to real time as possible, without dying constantly? Andy

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• Etiquette when asking questions in an IRC channel

  - by Zarkonnen

  Many larger OSS projects maintain IRC channels to discuss their usage or development. When I get stuck on using a project, having tried and failed to find information on the web, one of the ways I try to figure out what to do is to go into the IRC channel and ask. But my questions are invariably completely ignored by the people in the channel. If there was silence when I entered, there will still be silence. If there is an ongoing conversation, it carries on unperturbed. I leave the channel open for a few hours, hoping that maybe someone will eventually engage me, but nothing happens. So I worry that I'm being rude in some way I don't understand, or breaking some unspoken rule and being ignored for it. I try to make my questions polite, to the point, and grammatical, and try to indicate that I've tried the obvious solutions and why they didn't work. I understand that I'm obviously a complete stranger to the people on the channel, but I'm not sure how to fix this. Should I just lurk in the channel, saying nothing, for a week? That seems absurd too. A typical message I send might be "Hello all - I've been trying to get Foo to work, but I keep on getting a BarException. I tried resetting the Quux, but this doesn't seem to do anything. Does anyone have a suggestion on what I could try?"

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• XPath & XML EDI B2B

  - by PearlFactory

  GoodToGo :) Best XML Editor is Altova XMLSpy 2011 http://www.torrenthound.com/hash/bfdbf55baa4ca6f8e93464c9a42cbd66450bb950/torrent-info/Altova-XMLSpy-Enterprise-Edition-SP1-2011-v13-0-1-0-h33t-com-Full For whatever reason Piratebay has trojans and other nasties..Search in torrent.eu for Altova XMLSpy Enterprise Edition SP1 2011 v13.0.1.0 Also if you like the product purchase it in a Commercial Enviroment Any well structured/complex XML can be parsed @ the speed of light using XPATH querys and not the C# objects XPathNodeIterator and others etc ....Never do loops  or Genirics or whatever highlevel language technology. Use the power of XPATH i.e Will use a Simple (Do while) as an example. We could have many different techs all achieveing the same result Instead of   xmlNI2 = xmlNav.Select("/p:BookShop")         if (xmlNI2.Count != 0)            {                                 while ((xmlNI2.MoveNext()))              string aNode =xmlNI2.SelectSingleNode('Book', nsmgr); if (aNode =="The Book I am after")       Console.WriteLine("Found My Book);   This lengthy cumbersome task can be achieved with a simple XPATH query Console.WriteLine((xmlNavg.SelectSingleNode("/p:BookShop/Book[.='The Book I am aFter ']", nsmgr)).Value.ToString()); Use the power of the parser and eliminate the middleman C#/MSIL/JIT etc etc Get Started Fast and use the parser as Outlined 1) Open XML and goto Grid Mode 2) Select XPATH tab on the bottom viewer/window as shown  From here you get intellisense and can quickly learn how to navigate/find the data using XPATH A key component to Navigation with XPATH is to use the "../ " command . This basically says from where I am now go up 1 level . With Xpath all commands are cumalative. i.e you can search for a book title @ the 2nd level of the XML and from there traverse 15 layers to paragraphs or words on a page with expression validation occuring throughout this process etc  (So in essence you may have arrived @ a node within the XML and have met 15 conditions along the way ) Given 1-2 days with XmlSpy and XPATH you unlock a technology that is super fast and simple to use. XML is a core component to what lays under the hood of so many techs. So it is no wonder that you want to be able to goto  the atomic level to achieve the result you want Justin P.S For a long time I saw XML as slow and a bit boring but now converted

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• How to fix the “Live INT automatically logs out”

  - by ybbest

  Problem: Live INT environment automatically logs out I am trying to setup the Authentication with Windows Live ID and followed this blog post ; I have a problem logging in to live INT web site. Whenever I try to log in (https://login.live-int.com/login.srf  this is the internal Live environment to be used in a dev. environment.), after entering valid email/password I get redirected to the logout page. I tried 2 different accounts (one with existing email address, and other one with newly created @hotmail-int.com address) and 3 different browsers so I’m sure that neither account nor the browser are the cause of this. I also tried to enter wrong password, and in that case I get the message that the password is wrong. Solution: All you need is the unique ID in order to add the user to SharePoint , you can get the ID without logging into the Live INT environment. I think the Live internal environment is not working correctly for some reasons , the reason I need to login to the Live internal environment is that I need to get the unique ID for the test account so that I can add the user to SharePoint. All the blogs I have come across require you to login in order to get the unique ID. However, I figured out another way of getting the unique ID without logging in. Steps are below: Register a new test account in the Live internal environment. Go to the SharePoint site collection that has  Live ID authentication enabled and select the LiveID INT(it will be different as you could name it differently when you set up the authentication provider) from the dropdown. Try login using the Internal Live account, you will get an Access Denied Error as below showing your  unique ID for the test account. Add that account to your SharePoint Group, boom, it works. I hope it will help anyone who needs to do this stuff in the future.

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• Why it is called "hash table", or "hash function"? Hash doesn't make any sense to me here

  - by Saeed Neamati

  It's now about 4 years of development that I'm using, hearing, talking about, and implementing hash tables and hash functions. But I really never understand why it's called hash? I remember the first days I started programming, this term was kind'of cumbersome terminology to me. I never figured out what is it, based on its name. I just experimentally understood what it does and why and when should we use it. However, I still sometimes try to figure out why it's called hash. I have no problem with table or function and to be honest, they are pretty deductive, rational terms. However, I think better words could be used instead of hash, like key, or uniqueness. Don't key table or uniqueness table. According to my dictionary, hash means: Fried dish of potato and meats (highly irrelevant) # symbol (AKA number sign, pound sign, etc.) (still irrelevant, maybe just a mis-nomenclature) Apply algorithm to character string (still has nothing to do with uniqueness, which is the most important feature of a hash table) Cut food Another term for hashish Does anyone know why it's called hash?

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• How to backup metro "app" data, manually

  - by ihateapps

  I'm a PC tech and I have been getting more and more Windows 8 issues. First off I hate metro, and secondly I hate "apps". I like to do fresh installs of Windows8. I backup my user's data and then fresh install. Assuming there is no recovery partition how can I manually backup the user's app data so that in the event of a reformat I simply redownload their apps (dumb, I wish there was a way to actually back them up too) and plop the data back in. Do most normal people even use "apps", or do they use Windows8 like a desktop OS? I totally dropped metro with ClassicShell.

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• Adding FTP Users via Simple Control Panel

  - by Aristotle

  I just got setup with CentOS yesterday through GoDaddy, and today I'm trying to get into the server and start setting up some of my projects. I'm able to get in through PuTTY just fine, but I'm not able to connect through FTP with the same (root) account. I'm using Simple Control Panel, and have ensured that "Enable Server" is checked beneathSystem Configuration > FTP. Further, I've checked, and double checked that my root password is correct when providing the FTP details. Is there some other common setting I'm missing here that will prevent me from getting connected to the server to begin transfering files?

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