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  • How to make sudo remember my password and how to add an application to startup

    - by Bragboy
    I guess this should be a simple thing for ubuntu users out there. I have two questions. Whenever I need to run some command that requires permission from root, I run as sudo followed by that command. It would be nice if that does not prompt for password (but I should still be issuing a sudo to make sure that I know what I am doing). How to do this? Every time I start my system, I go to terminal and start my VPN using sudo vpnc. This is almost everytime! How to automate this to a startup script? Help much appreciated! Thanks

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  • Gathering all data in single iteration vs using functions for readable code

    - by user828584
    Say I have an array of runners with which I need to find the tallest runner, the fastest runner, and the lightest runner. It seems like the most readable solution would be: runners = getRunners(); tallestRunner = getTallestRunner(runners); fastestRunner = getFastestRunner(runners); lightestRunner = getLightestRunner(runners); ..where each function iterates over the runners and keeps track of the largest height, greatest speed, and lowest weight. Iterating over the array three times, however, doesn't seem like a very good idea. It would instead be better to do: int greatestHeght, greatestSpeed, leastWeight; Runner tallestRunner, fastestRunner, lightestRunner; for(runner in runners){ if(runner.height > greatestHeight) { greatestHeight = runner.height; tallestRunner = runner; } if(runner.speed > ... } While this isn't too unreadable, it can get messy when there is more logic for each piece of information being extracted in the iteration. What's the middle ground here? How can I use only a single iteration while still keeping the code divided into logical units?

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  • different data with same title and keywords

    - by Junaid Saeed
    here is my scenario i have a website where i redirect my users basing upon the device they were using, lets say a user is visiting from an iPad, i take him directly to the page of iPad wallpapers, the user selects iPad version & i take the user to the gallery of wallpapers where the user can select & download any wallpaper. Every wallpaper is the required resolution, i have my reasons for doing this, now the thing is there are diff. resolution. versions of an image appearing one 5 diff. sections of my website, each having their own view page Now there is only one record in db.table for the image, and basing on the my consistent naming convention of the images, i pick the required image. this means when 5 different pages are generated in 5 categorized sections of the website, due to a shared DB record, the keywords, the titles and every single detail of the 5 pages is same besides the resolution of the image, and the section specific details that the page has and yeah the pages also have different paths like wallpapers.com\ipad-1\cars\Ferrari-dino.html wallpapers.com\ipad-2\cars\Ferrari-dino.html wallpapers.com\ipad-3\cars\Ferrari-dino.html wallpapers.com\ipad-4\cars\Ferrari-dino.html wallpapers.com\ipad-5\cars\Ferrari-dino.html now this is my scenario, How do Search Engines see it and how do they rank it? Is it a Good or Normal or Bad SEO practice? If bad how dangerous it is for my sites SEO? i need your comments on my scenario.

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  • Java 6.0 Virtual Machine re-caches application on every load

    - by David Neale
    I have a Java application which is loaded and cached by the JRE and for most users it only needs to cache once unless the application software has changed. However, I have one computer that caches the entire application every time they load it. It is not the version of the JRE, I have that running on other machines. It also works on this machine if logged in as a local admin, just not as a standard user. Does anybody have any ideas on what might be causing this?

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  • queues in linux tcp stack

    - by poly
    I'm trying to understand the Linux kernel tcp_input/tcp_output and I'm lost. who create/control the queues, if the input is a thread and the out is another thread, who owns the queues in the TCP stack as there are many, I already asked about the retransmission queue before in this site, so the question would be who create this queue I know that this queue holds all sent packet to be retransmitted/deleted after ack later

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  • data maintenance/migrations in image based sytems

    - by User
    Web applications usually have a database. The code and the database work hand in hand together. Therefore Frameworks like Ruby on Rails and Django create migration files Sure there are also servers written in Self or Smalltalk or other image-based systems that face the same problem: Code is not written on the server but in a separate image of the programmer. How do these systems deal with a changing schema, changing classes/prototypes. Which way do the migrations go? Example: What is the process of a new attribute going from programmer's idea to the server code and all objects? I found the Gemstone/S manual chapter 8 but it does not really talk about the process of shipping code to the server.

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  • Telecomunication SID model and resources [on hold]

    - by andygluk
    There is a SID model well-known in telecom industry. Following this model you define resources as resources owned by your enterprise, and then you build resource-oriented services on top of it and then customer-oriented services and so on... So everything is based on enterprise-owned resources, which you have to identify first. What I am looking for and what I am asking is some alternative to this model, build not on enterprise-owned resources, but on resources sell by enterprise. Say, you are selling licenses for using your products. So instead of building model on top of enterprise resources you may be interested to build it on top of licenses you are selling.

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  • Defaults for Exporting Data in Oracle SQL Developer

    - by thatjeffsmith
    I was testing a reported bug in SQL Developer today – so the bug I was looking for wasn’t there (YES!) but I found a different one (NO!) – and I was getting frustrated by having to check the same boxes over and over again. What I wanted was INSERT STATEMENTS to the CLIPBOARD. Not what I want! I’m always doing the same thing, over and over again. And I never go to FILE – that’s too permanent for my type of work. I either want stuff to the clipboard or to the worksheet. Surely there’s a way to tell SQL Developer how to behave? Oh yeah, check the preferences So you can set the defaults for this dialog. Go to: Tools – Preferences – Database – Utilities – Export Now I will always start with ‘INSERT’ and ‘Clipboard’ – woohoo! Now, I can also go INTO the preferences for each of the different formats to save me a few more clicks. I prefer pointy hats (^) for my delimiters, don’t you? So, spend a few minutes and set each of these to what you’re normally doing and save yourself a bunch of time going forward.

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  • Reinstall Ubuntu keeping my data intact

    - by Magnus
    I have recently upgraded my desktop OS from ubntu 12.04 to 12.10 (complete reinstall). Before the switch i made a list of all programs installed on my Ubuntu 12.04. sudo dpkg --get-selections > file After that i reinstalled Ubuntu 12.10 and when all was done i performed the following command: sudo dpkg --set-selections < file sudo apt-get dselect-upgrade Here is when the problems start, I get several warnings like this when performing the commands above: dpkg: warning: package not in database at line xxx and many of the programs is not installed. I don't know what the line means. I have serched the web and it seems that I'm not the only one suffering from this but I have not find any solution that worked for me. Any ideas what is causing this? Regards Magnus Örberg

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  • OpenGL 2.1+ Render with data returned form assimp library

    - by Bình Nguyên
    I have just readed this tutorial about load a 3D model file: http://www.lighthouse3d.com/cg-topics/code-samples/importing-3d-models-with-assimp/#comment-14551. Its render routine uses a recursive_render function to scan all node. My question: What is a aiNode struct store? What different form this method and above method: for (int i=0; imNumMesh; ++i) { draw scene-mMeshes[i]; } Thanks for reading!

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  • Displaying google analytics data on my website

    - by anon-user0
    I sale adspace for my websites directly to the advertisers. I ad page where I want to show google anaylytics information that update automatically without me having to manually update everyday or every month. Something like this: http://wstats.net/en/website/riverplate.com#stat_trafic I don't want to use embedded or iframed third party services. I know google has public API and you can connect it to google graph API to to show pretty graphs. There is a tutorial by google here on how to do it: https://developers.google.com/analytics/resources/articles/gdataAnalyticsCharts Few problems: I don't know much javascript The javascript seems to prompt for authntication as opposed to login automatically. (from my understanding by reading comments on the code) Does anyone know of any ready made script that does what I am looking for or know how I can fix this code that will allow me to display analytic info without authenticating? Thanks.

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  • Lower Your Application Infrastructure Costs w/Oracle Database 11g

    - by john.brust
    Oracle Database 11g is designed to support enterprise applications, including Oracle E-Business Suite, Oracle PeopleSoft, and Oracle Siebel. And every Oracle customer can benefit from the performance, reliability, and security that Oracle Database 11g brings to these applications. Plus, Oracle Database 11g, helps you drive down your IT infrastructure costs. Join us next Friday for a webcast conversation with database expert Mark Townsend, Vice President of Oracle's Server Technology Division, to learn how you can benefit from running your applications on Oracle Database 11g. At the end of the presentation, we'll open up for live Q&A for approximately 30 minutes. Register now for our Friday, April 23rd, 2010 9:30am PT | 12:30pm ET live webcast.

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  • Deployment and Ownership issues

    - by kylemac
    As an extreme newbie, I am having difficulty managing ownership and permissions on my first box. What I can't figure out is how to deploy using one user, we will call him deploy and operate my php application with www-data user. Currently as it stands, I know my server runs as www-data through this function <?php echo(exec("whoami")); ?> but I am having to chown between deploy and www-data every time I deploy. There has got to be an easier way to deploy with one user and still run as www-data. EDIT: Here is the output from ls- l on the folder in question. You will see user deploy and group www-pub, the group is from an attempt to add the two different users to a new group and chown one of them in the hopes that they both would have the permissions (newb alert) drwxrwxr-x 4 deploy www-pub 4096 Mar 7 01:41 example.com I am using capistrano for deployment under the user deploy then once its done i chown to www-data, otherwise I can't use php to manipulate files. I am also unsure how to even change which user apache is running.

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  • Stairway to XML: Level 7 - Updating Data in an XML Instance

    You need to provide the necessary keywords and define the XQuery and value expressions in your XML DML expression in order to use the modify() method to update element and attribute values in either typed or untyped XML instances in an XML column. Robert Sheldon explains how. "It really helped us isolate where we were experiencing a bottleneck"- John Q Martin, SQL Server DBA. Get started with SQL Monitor today to solve tricky performance problems - download a free trial

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  • Equivalent of #map in ruby in golang

    - by Oct
    I'm playing with Go and run into something I'm unable to find in Google, although there is certainly something that exists: I'm using the following struct: type Syntax struct { name string extensions *regexp.Regexp } type Scanner struct { classifier * bayesian.Classifier save_file string name_to_syntax map[string] *Syntax extensions_to_syntax map[*regexp.Regexp] *Syntax } I'd like to perform the following using Go and I'm quoting ruby because it's how I'd do that using ruby: test_regexpes = my_scanner.extensions_to_syntax.keys My goal is to get an array of *regexp.Regexp . Any idea on how to do that in a simple way ? Thank you !

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  • Finding right bug tracker web application

    - by FullmetalBoy
    I'm looking for a bug tracking system (similiar as http://www.mantisbt.org) with these following requirements: Requirement specifications are: Upload picture and different files without any limitaton of the file's space. If user belong to a specific group or businesss group, the GUI:s logotype should be changed into group's logotype after the user has entered user name and password. All user use the same database with different GUI. Right information of unassigned, modified and resolved bug case will be displayed based on what group or business group that the user is assigned to. All information will display after the user has logged in. Enable to create 1 or more super user (administrator) and regular user. Right user with right group or business group will retrieve right information. Non functional requirement: The bugging tracker take place in a webbapplication. All information must use web browser to view all information.

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  • Rendering an image from an embedded Web Browser (C# WPF application)

    - by The Official Microsoft IIS Site
    How is all started So this week I was working on an extension for WebMatrix , Luke Sampson of http://StudioStyle.es just integrate a cool piece of code from Matt MCElheny . The news is that the studiostyle.es website now supports converting the over 1,000 themes uploaded for Visual Studio 2010 into the WebMatrix format, and hence we automatically got a very large load of themes to choose from. Still we aspired for an even better experience, currently the WebMatrix user will have to install the ColorThemeEditor...(read more)

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