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  • What has been your experience with paid support from Canonical ?

    - by gabkdlly
    I am considering buying "Ubuntu Desktop Support" from Canonical for 2 reasons: I have a couple of issues that I would like professional help with. ( Specifically a recurring kernel panic, and a slow wireless connection. ) I would like to lend a helping hand toward supporting Ubuntu financially. However, I am a bit worried that once I transfer the money, they will end up just referring me to the bug tracker on Launchpad. Also, free support options like this site have the pleasant property that they are open to the internet, meaning that if my issue gets fixed, it is more likely to help others with the same problem. What does paying for support from Canonical actually get you ?

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  • how execute mysql command DELIMITER

    - by user5332
    hi, I have huge problem (for me) I need from PHP execute mysql command DELIMITER | but mysql_query fails on error... and I found that mysql_query doesn't support usage of DELIMITER, because this command may be working only in mysql console but when I open phpMyAdmin ... is there at SQL tab an option to change DELIMITER and it works... but I don't know how... could you help me? who is possile to change delimiter from PHP? I need it to do before CREATE TRIGGER ... that uses several ; that may not be interpreted like command end

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  • URL Rewrite http to https EXCEPT files in a specific subfolder

    - by BrettRobi
    I am trying to force all traffic on my web site to use HTTPS, using the URL Rewrite 2.0 module added to IIS 7.5. I got that working and now have a need to exclude a couple of pages from using SSL. So I need a rule to rewrite all URL except those referencing this folder to HTTPS. I've been banging my head against the wall on this and am hoping someone can help. I tried creating a rule to match all URL except those in a nossl subfolder as in this example: <rule name="HTTP to HTTPS redirect" enabled="true" stopProcessing="true"> <match url="(/nossl/.*)" negate="true" /> <conditions logicalGrouping="MatchAll" trackAllCaptures="false"> <add input="{HTTPS}" pattern="off" /> </conditions> <action type="Redirect" url="https://{HTTP_HOST}/{R:1}" redirectType="Found" /> </rule> But this doesn't work. Can anyone help?

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  • Submitting new site to directories - will Google penalize?

    - by Programmer Joe
    I just started a new site with a forum to discuss stocks. I've already submitted my site to DMOZ. To help promote my site and to help people who are looking for stock discussion forums to find it, I'm thinking of submitting my site to a few more directories but I'm hesistant because I know Google will penalize a site if it believes the backlinks to the site are spammy and/or low quality. So, I have a few questions: 1) If I submit my site to directories with a PR between 4 and 5, will those backlinks be considered spammy/low quality? I noticed most free directories have a PR between 4 and 5, but I don't know if backlinks from those directories would be considered spammy by Google. 2) I'm thinking of submitting it to Best of the Web and JoeAnt, but these are paid. Does anybody have any experience with these two paid directories? Are these two directories considered higher quality by Google?

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  • Navigation in Win8 Metro Style applications

    - by Dennis Vroegop
    In Windows 8, Touch is, as they say, a first class citizen. Now, to be honest: they also said that in Windows 7. However in Win8 this is actually true. Applications are meant to be used by touch. Yes, you can still use mouse, keyboard and pen and your apps should take that into account but touch is where you should focus on initially. Will all users have touch enabled devices? No, not in the first place. I don’t think touchscreens will be on every device sold next year. But in 5 years? Who knows? Don’t forget: if your app is successful it will be around for a long time and by that time touchscreens will be everywhere. Another reason to embrace touch is that it’s easier to develop a touch-oriented app and then to make sure that keyboard, nouse and pen work as doing it the other way around. Porting a mouse-based application to a touch based application almost never works. The reverse gives you much more chances for success. That being said, there are some things that you need to think about. Most people have more than one finger, while most users only use one mouse at the time. Still, most touch-developers translate their mouse-knowledge to the touch and think they did a good job. Martin Tirion from Microsoft said that since Touch is a new language people face the same challenges they do when learning a new real spoken language. The first thing people try when learning a new language is simply replace the words in their native language to the newly learned words. At first they don’t care about grammar. To a native speaker of that other language this sounds all wrong but they still will be able to understand what the intention was. If you don’t believe me: try Google translate to translate something for you from your language to another and then back and see what happens. The same thing happens with Touch. Most developers translate a mouse-click into a tap-event and think they’re done. Well matey, you’re not done. Not by far. There are things you can do with a mouse that you cannot do with touch. Think hover. A mouse has the ability to ‘slide’ over UI elements. Touch doesn’t (I know: with Pen you can do this but I’m talking about actual fingers here). A touch is either there or it isn’t. And right-click? Forget about it. A click is a click.  Yes, you have more than one finger but the machine doesn’t know which finger you use… The other way around is also true. Like I said: most users only have one mouse but they are likely to have more than one finger. So how do we take that into account? Thinking about this is really worth the time: you might come up with some surprisingly good ideas! Still: don’t forget that not every user has touch-enabled hardware so make sure your app is useable for both groups. Keep this in mind: we’re going to need it later on! Now. Apps should be easy to use. You don’t want your user to read through pages and pages of documentation before they can use the app. Imagine that spotter next to an airfield suddenly seeing a prototype of a Concorde 2 landing on the nearby runway. He probably wants to enter that information in our app NOW and not after he’s taken a 3 day course. Even if he still has to download the app, install it for the first time and then run it he should be on his way immediately. At least, fast enough to note down the details of that unique, rare and possibly exciting sighting he just did. So.. How do we do this? Well, I am not talking about games here. Games are in a league of their own. They fall outside the scope of the apps I am describing. But all the others can roughly be characterized as being one of two flavors: the navigation is either flat or hierarchical. That’s it. And if it’s hierarchical it’s no more than three levels deep. Not more. Your users will get lost otherwise and we don’t want that. Flat is simple. Just imagine we have one screen that is as high as our physical screen is and as wide as you need it to be. Don’t worry if it doesn’t fit on the screen: people can scroll to the right and left. Don’t combine up/down and left/right scrolling: it’s confusing. Next to that, since most users will hold their device in landscape mode it’s very natural to scroll horizontal. So let’s use that when we have a flat model. The same applies to the hierarchical model. Try to have at most three levels. If you need more space, find a way to group the items in such a way that you can fit it in three, very wide lanes. At the highest level we have the so called hub level. This is the entry point of the app and as such it should give the user an immediate feeling of what the app is all about. If your app has categories if items then you might show these categories here. And while you’re at it: also show 2 or 3 of the items itself here to give the user a taste of what lies beneath. If the user selects a category you go to the section part. Here you show several sections (again, go as wide as you need) with again some detail examples. After that: the details layer shows each item. By giving some samples of the underlaying layer you achieve several things: you make the layer attractive by showing several different things, you show some highlights so the user sees actual content and you provide a shortcut to the layers underneath. The image below is borrowed from the http://design.windows.com website which has tons and tons of examples: For our app we’ll use this layout. So what will we show? Well, let’s see what sorts of features our app has to offer. I’ll repeat them here: Note planes Add pictures of that plane Notify friends of new spots Share new spots on social media Write down arrival times Write down departure times Write down the runway they take I am sure you can think of some more items but for now we'll use these. In the hub we’ll show something that represents “Spots”, “Friends”, “Social”. Apparently we have an inner list of spotter-friends that are in the app, while we also have to whole world in social. In the layer below we show something else, depending on what the user choose. When they choose “Spots” we’ll display the last spots, last spots by our friends (so we can actually jump from this category to the one next to it) and so on. When they choose a “spot” (or press the + icon in the App bar, which I’ll talk about next time) they go to the lowest and final level that shows details about that spot, including a picture, date and time and the notes belonging to that entry. You’d be amazed at how easy it is to organize your app this way. If you don’t have enough room in these three layers you probably could easily get away with grouping items. Take a look at our hub: we have three completely different things in one place. If you still can’t fit it all in in a logical and consistent way, chances are you are trying to do too much in this app. Go back to your mission statement, determine if it is specific enough and if your feature list helps that statement or makes it unclear. Go ahead. Give it a go! Next time we’ll talk about the look and feel, the charms and the app-bar….

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  • Google I/O 2010 - Fluid social experiences across sites

    Google I/O 2010 - Fluid social experiences across sites Google I/O 2010 - Bridging the islands: Building fluid social experiences across websites Social Web 201 John Panzer, Joseph Smarr As more sites add social functionality, profiles, friends, and conversations are becoming increasingly fragmented. But an emerging collection of open technologies aim to help bridge these social islands, allowing users to seamlessly move between sites and have unified conversations that span multiple web sites. Learn how OpenID, OAuth, Portable Contacts, ActivityStrea.ms, and Salmon can help you connect to the rest of the Social Web. For all I/O 2010 sessions, please go to code.google.com/events/io/2010/sessions.html From: GoogleDevelopers Views: 2 0 ratings Time: 01:01:42 More in Science & Technology

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  • sun.com - SMTP 521

    - by alexismp
    reason: 521 5.0.0 messages are no longer accepted for sun.com It's been planned for a while now - sun.com email addresses are no longer accepted and no longer forwarded to oracle.com. So check you contacts and update old Sun email addresses. While this will probably cut down the spam for a number of us you may need the new stable email address - most Oracle email addresses use the same first.last @ oracle.com pattern (but there are a few homonyms in a company with 100k+ employees). If you need to contact us (TheAquarium), the email address is in the "Contact Us" section on the blog.

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  • URL Rewrite http to https EXCEPT files in a specific subfolder

    - by BrettRobi
    I am trying to force all traffic on my web site to use HTTPS, using the URL Rewrite 2.0 module added to IIS 7.5. I got that working and now have a need to exclude a couple of pages from using SSL. So I need a rule to rewrite all URL except those referencing this folder to HTTPS. I've been banging my head against the wall on this and am hoping someone can help. I tried creating a rule to match all URL except those in a nossl subfolder as in this example: <rule name="HTTP to HTTPS redirect" enabled="true" stopProcessing="true"> <match url="(/nossl/.*)" negate="true" /> <conditions logicalGrouping="MatchAll" trackAllCaptures="false"> <add input="{HTTPS}" pattern="off" /> </conditions> <action type="Redirect" url="https://{HTTP_HOST}/{R:1}" redirectType="Found" /> </rule> But this doesn't work. Can anyone help?

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  • design for a parser to handle very large files

    - by user619818
    I have written a program which records protocol messages between an application and a hardware device which matches each application request with each hardware response. This is so that I can later remove the hardware, connect a 'replay' application to the main application and wait for an application request and reply with a matched copy of the requisite hardware reply message. My replay application saves the matched request/response in a list (using C++ std::list). This works fine on a small interaction session. My problem now is that I need to be able to use the replay over a long long session. With my current implementation, the replay program eventually uses up all available memory on my computer and crashes. So I need some sort of lookahead - and not parse the whole session in one go. Can anyone make any suggestions on how to get started?

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  • Regular wireless dropouts on new lenovo T440s in Ubuntu 14.04

    - by user290670
    Over the last 24 hours my wireless has dropped out regularly. I've tested to make sure it isn't my router (my phone and everyone in the house isn't having problems using the wifi). This is a brand-new installation of Ubuntu 14.04 and according to uname I'm running kernel 3.13.0-24-generic. Now, my laptop has an Intel 7260AC dual band wireless card and I've read that Ubuntu has been having trouble with these. I notice that at http://www.intel.com/support/wireless/wlan/sb/CS-034398.htm There are some updated drivers for my kernel version. However I have no idea how to update the kernel to use these drivers instead so that I can see if this will fix it. Can anyone help? These dropouts are really annoying. EDIT: Upgrading to 3.14.6 did not help.

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  • HD Video Peformance Unacceptable

    - by Mike Hasselbeck
    Was wondering if anyone could help me boost HD 1080p video performance on my machine? I've got an AMD Athlon X2 Dual Core processor, 2 gb RAM & an ATI Radeon 5450 video card. I've installed the latest ATI Catalyst drivers, I installed the hardware acceleration things and linked them (I believe) to VLC. Still, it's still not running as well as I would like. Any thoughts or suggestions? Any help would be much appreciated. Thanks!

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  • Simple 3D Physics engine as a part of graduation project [on hold]

    - by Eugene Kolesnikov
    I am working on my graduation project and one part of it is to simulate the motion of a rigid body in 3D space. I can use either already written physics engine or to write it myself. It's quite an interesting challenge for me, so I would like to do it myself. I am able to use either C++ or Java for programming (prefer C++). I am using Mac OS X and Debian 7. Could you suggest any guides or tutorials how to do it, can't find it anywhere... More precisely, I need a very simple engine, without collision detection, and many other things that I do not know, I just need to calculate the forces and move my body, depending on the resultant force. If you think that this task is still very difficult or there is no such tutorial, please suggest me some good and simple engine.

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  • Behaviour Trees with irregular updates

    - by Robominister
    I'm interested in behaviour trees that aren't iterated every game tick, but every so often. (Edit: the tree could specify how many frames within the main game loop to wait before running its tick function again). Every theoretical implementation I have seen of behaviour trees talks of the tree search being carried out every game update - which seems necessary, because a leaf node (eg a behaviour, like 'return to base') needs to be constantly checked to see if is still running, failed or completed. Can anyone suggest how I might start implementing a tree that isnt run every tick, or point me in the direction of good material specific to this case (I am struggling to find anything)? My thoughts so far: action leaf nodes (when they start) must only push some kind of action object onto a list for an entity, rather than directly calling any code that makes the entity do something. The list of actions for the entity would be run every frame (update any that need to run, pop any that have completed from the list). the return state from a given action must be fed back into the tree, so that when we run the tree iteration again (and reach the same action leaf node - so the tree has so far determined that we ought to still be trying this action) - that the action has completed, or is still running etc. If my actual action code is running from an action list on an entity, then I possibly need to cancel previously running actions in the list - i am thinking that I can just delete the entire stack of queued up actions. I've seen the idea of ActionLists which block lower priority actions when a higher priority one is added, but this seems like very close logic to behaviour trees, and I dont want to be duplicating behaviour. This leaves me with some questions 1) How would I feed the action return state back into the tree? Its obvious I need to store some information relating to 'currently executing actions' on the entity, and check that in the tree tick, but I can't imagine how. 2) Does having a seperate behaviour tree (for deciding behaviour) and action list (for carrying out actual queued up actions) sound like a reasonable approach? 3) Is the approach of updating a behaviour tree irregularly actually used by anyone? It seems like a nice idea for budgeting ai search time when you have a lot of ai entities to process. (Edit) - I am also thinking about storing a single instance of a given behaviour tree in memory, and providing it by reference to any entity that uses it. So any information about what action was last selected for execution on an entity must be stored in a data context relative to the entity (which the tree can check). (I am probably answering my own questions as i go!) I hope I have expressed my questions adequately! Thanks in advance for any help :)

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  • Studying computer science - what am I getting myself into?

    - by clankercrusher
    I'm a student considering the possibility of studying computer science. I've picked up programming indie games and websites as a hobby and I really enjoy it. Despite my fairly positive experience, I somehow get the feeling that computer science in the business world will be completely different than do-it-for-fun game making. Since I'm interested in the field and I'd like to study well, I want to prepare myself for the onslaught. (If that’s even possible) What are some of the most important principals I need to know if I decide to study computer science? What will I need to know about computer science that a University probably won't teach me? Is there any way I can get hands on experience before or while I'm at a University? What am I getting myself into? P.S. Is this the right stack exchange site for this type of question?

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  • What kind of installer should I use?

    - by crosenblum
    I need a program installer for window's that is free or open source, that is somewhat customizable, but creates very small installer files. I would be using this to create a mmorpg game client installer, for my private server. And I'll need to this repeatedly once my server goes live to help keep my player's up to date with server changes. Any suggestions? I have tried NSIS, but i really didn't like it, too hard to do. I am also concerned about file sizes... Any thoughts?

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  • How to convert an XFS file system to HFS+

    - by user219350
    I have repeatedly convinced of the reliability of the XFS file system , and I was more than satisfied . I was happy with everything in Ubuntu 14.04 ( great software) , but there is a little "but ! " Basically, I work on OSX-Mavericks 10.9.3, which sees very Windows 8.1 and works wonders with NTFS, but does not see Ubuntu! Briefly describe the equipment: ASRock B75 Pro3-M i5 3330 GeForce GTX 650 Ti SATA 500GB running OS X Mavericks + Clover - a boot disk Toshiba 2TB running Windows 8.1 (x64) and Ubuntu 14.04 (amd64) If you boot from the Toshiba (where there is Ubuntu and boot Windows + GRUB) after restart boot from Clover, it is impossible. Tried a lot of options - as Clover installation and boot priority, and various settings for GRUB, but have not found an acceptable option and have no desire to reinstall again Clover (Mavericks reboots 20 seconds - excellent!) So please help on the file system - how to convert from XFS to HFS+ journaled. Mavericks to saw it all synced on Mac. Thank you for the sensible answer and help! Originally in Russian.

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  • Enable remote VNC from the commandline?

    - by Stefan Lasiewski
    I have one computer running Ubuntu 10.04, and is running Vino, the default VNC server. I have a second Windows box which is running a VNC client, but does not have any X11 capabilities. I am ssh'd into the Ubuntu host from the Windows host, but I forgot to enable VNC access on the Ubuntu host. On the Ubuntu host, is there a way for me to enable VNC connections from the Ubuntu commandline? Update: As @koanhead says below, there is no man page for vino (e.g. man -k vino and info vino return nothing), and vino --help doesn't show any help).

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  • Xrandr settings don't stick; bash script fails; Nvidia; disper doesn't work

    - by bcmcfc
    I have an Nvidia graphics card. Yeah, I know. This might have to change soon. I am trying to get the resolution to set correctly on my second monitor, which is a VGA monitor with a native resolution of 1440x900. I have set up this bash script which doesn't work: xrandr --newmode "1440" 106.50 1440 1528 1672 1904 900 903 909 934 -hsync +vsync xrandr --addmode -display VGA-1 1440 xrandr --output VGA-1 --mode 1440 It outputs: xrandr: cannot find mode 1440. It has worked previously when running the commands individually but after a restart it fails. I've also just installed disper as per this question but have no idea how to use it - the help suggests the command: disper -d VGA-1 -r "1440x900" should work, but it does not. It just outputs the help text, suggesting something is wrong but not saying what. Is there any way to get these horrific Nvidia drivers working properly with a resolution that is not detected by the tools?

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  • Microsoft Assessment and Planning (MAP) Toolkit 5.0 Beta

    - by Lara Rubbelke
    Do you know where SQL Server is installed - everywhere it is installed? Do you really know where SQL Server is installed? Are you looking for a tool that will help you discover any rogue instances so you can better manage these instances? The Beta 2 for the Microsoft Assessment and Planning (MAP) Toolkit 5.0 is now open. Join the beta review program and help influence the development of the toolkit. To participate, register for the MAP Toolkit 5.0 Beta 2 at Microsoft Connect. The MAP Toolkit 5.0...(read more)

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  • Driving Growth through Smarter Selling

    - by Samantha.Y. Ma
    With the proliferation of social media and mobile technologies, the world of selling and buying has drastically changed, as buyers now have access to more information than they did in the past. In fact, studies have shown that buyers complete 60 percent of the buying process before they even engage with a salesperson. The old models of selling no longer work effectively; and the new way of selling is driven by customer insights. To succeed, sales need to be proactive, not reactive. They need to engage with the customer early, sometimes even before the customer’s needs are fully understood. In fact, the best sales reps prescribe a solution that the customer doesn't even know they need, often by leveraging social media to listen, engage and collaborate with peers. And they fully tap into the power of analytics and data to drive results.  Let’s look at some stats regarding challenges facing sales today. According to recent studies, sales reps spend 78 percent of their time doing administrative things -- such as planning, searching for information, data entry -- and only 22 percent of the time actually selling. Furthermore, 40 percent of B2B sales reps miss their quota, and only 3 percent of companies can say with confidence that their forecasts are “always accurate.” How do you drive growth in this modern day and age? It's not just getting your sales teams to work harder; it's helping them work smarter and providing them with a solution they want to use, on the device(s) they already know, giving them critical insights and tools to be more productive, increase win rates, and close deals faster. Oracle Sales Cloud was designed to do exactly that. It enables smarter selling that allows reps to sell more, managers to know more, and companies to grow more.  Let’s face it—if all CRM solutions worked well, sales executives wouldn’t be having the same headaches as they had in the past. Join Oracle’s Thomas Kurian and Doug Clemmans on Tuesday, October 22 as they explain: • How today’s sales processes have rendered many CRM systems obsolete • The secrets to smarter selling, leveraging mobile, social, and big data • How Oracle Sales Cloud enables smarter selling—as proven by Oracle and its customers Take the first step down the path toward smarter selling. With Oracle Sales Cloud, reps sell more, managers know more, and companies grow more.

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  • How would you want to see software intellectual property protected?

    - by glenatron
    Reading answers to this question - and many other discussions of software patents - it seems that most of us as programmers feel that software patents are a bad idea. At the same time we are in the group most likely to lose out if our work is copied or stolen. So what level of Intellectual Property Protection does code and software need? Is copyright sufficient? Are patents necessary? As software is neither a physical object nor simple text, should we be thinking of a third path that falls somewhere between the two? Do we need any protection at all? If you had the facility to set up the law for this, what would you choose?

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