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• HTG Explains: What is DNS?

  - by Chris Hoffman

  Did you know you could be connected to facebook.com – and see facebook.com in your web browser’s address bar – while not actually being connected to Facebook’s real website? To understand why, you’ll need to know a bit about DNS. DNS underpins the world wide web we use every day. It works transparently in the background, converting human-readable website names into computer-readable numerical IP addresses. Image Credit: Jemimus on Flickr How To Switch Webmail Providers Without Losing All Your Email How To Force Windows Applications to Use a Specific CPU HTG Explains: Is UPnP a Security Risk?

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• Which DB should I use for my newbie program?

  - by knijo

  I'm really new to programming, and I need some advice. I'm currently working on a very simple program to maintain a list of users at a company, as well as their clock in and clock out info. I would like to make this application easy to distribute (on a cd probably), and I'm looking for advice on which database to use for storing my data. My application is implemented using java and swing. A friend recommended MySQL, but I don't want to go installing the db server on every computer the application is installed on. Another friend recommended Access. Any tips would be greatly appreciated

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• Boots to a totally blank screen after I installed some ATI Radeon card updates

  - by baboonWorksFine

  I am using Ubuntu 10.04 LTS, dual boot with win7 on ThinkPad T400, I followed Ubuntu update hints and installed some update for my ATI Radeon graphic card, but when I boot to Ubuntu(means I can still load GRUB), the tragedy happened, the screen goes to blank and no matter what key stroke, I can not get any responds, I try to go to text terminal, but impossible! However when I hit the power button, the computer would pop out the Ubuntu shutdown screen briefly and shut down. I figure out I should delete the updates package of my graphic card, but I don't even get a chance to go to text terminal, please help me!

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• Cliché monsters to populate a steampunk fantasy setting dwarven dungeon?

  - by Alexander Gladysh

  I'm looking for a list of cliché monsters for a steampunk computer game (assume one kind or another of casual rogue-like RPG), to populate lower levels of ancient dwarven-built dungeons. Dwarves are a technology/science race in the setting I am aiming for. The world is a low-magic one. I'm stuck after listing various mechanical golems, gigantic spiders (every dungeon must have some of them!), and maybe a mechanical barlog as a megaboss. What would player expect? What are the key cultural references for such setting? I know a couple of games with suitable steampunk dwarves, but none are detailed enough in the underworld monsters area. Please point me in the right direction. (If you have a single funny monster suggestion, please mention it in comments, not in answer. ;-) )

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• Screen Scaling Problem

  - by Glenbot3000

  I think this is what it's called but I'm not quite sure tbf, aha. Yeah, so I updated packages last night like I do every night, and when I booted my computer this morning I had a problem whereby the display ran over the edge of the screen. This has been a problem for a while, but I rectified it by changing a setting on the nVidia program, however I think it has been updated to remove said feature as I can't find it anymore. I have no settings on my screen to adjust this either, so I'm sorta stuck without the ~20px around the contour of my screen. It is a problem at all available resolutions. Here's a lil' pic of my problem: https://docs.google.com/file/d/0ByPHeBI8W35GcmZYOThWZ0hGd0k/edit Edit: Probably also worth mentioning the screen was originally detected as "Laptop" in the Display setting and had many resolutions to choose from, however now it's displayed as "OEM" and only has three.

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• Should I Learn C/C++ Even If I Just Want To Do Web Programming?

  - by Daniel

  My goal is to be able to create online apps and dynamic, database driven websites. For instance, if in the future I get the idea for the next Digg or Facebook, I want to be able to code it myself. To arrive there I think I have basically two paths: Path 1 Start at a basic level, learning C, then C++ for OOP, then algorithms and data structures, with the goal of getting a solid grasp of computer programming. Only then move to PHP/MySQL/HTTP and start working on practical programming projects. Path 2 Start directly with PHP/MySQL/HTTP and getting my hands dirty with practical projects right away. What would you guys recommend?

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• "kde-config not found" error while installing kstars from source

  - by tachyons

  I am trying to install kstars from source ,but I got the following error while configuring ./configure checking build system type... i686-pc-linux-gnu checking host system type... i686-pc-linux-gnu checking target system type... i686-pc-linux-gnu checking for a BSD-compatible install... /usr/bin/install -c checking for -p flag to install... yes checking whether build environment is sane... yes checking for gawk... no checking for mawk... mawk checking whether make sets $(MAKE)... yes checking for kde-config... not found configure: error: The important program kde-config was not found! Please check whether you installed KDE correctly. What does it mean ,I already installed kde in my computer

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• Multicasting and VMWare

  - by John Breakwell

  Cracked a Multicasting problem this evening for one of my Canadian Tweeple. They wanted to mulitcast some MSMQ messages to another machine but nothing was arriving in the listening queue. A local queue could be configured to listen to the particular IP address/port in use and messages would arrive, though. Looking at the network traffic, nothing was going onto the wire for the IP address/port pair until they looked at traffic to the VMWare adapter. The machine had a virtual machine to simulate a remote computer and when they changed the setup from NAT to Bridge, multicasting burst into life.

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• Ubuntu multiple issues (blank screen)

  - by Donavon

  Computer Specs I am having difficulties, to get Ubuntu 11.10 to work. For the 11.10 version, if I click install, or if I click try Ubuntu, I only get a blank screen, that just stays there. If I use "nomodeset", it changes to a loading screen and after about 2 minutes it goes back to black screen - however, before it goes black, i get a few errors, like: bad target number, or passwd error mode (something like that). I've also tried (xforcevesa, i915.modeset=0, nomodeset, radeon.modeset=0, i915.modeset=1) I have also tried the alternate installation, which installed fine, however when I boot up, select it from "grub", it goes black. I did manage to install 10.04, however the screen resolution was 800x600 and I couldn't fix it to 16:9 (my resolution). I don't wanna use 10.04, because I would like the new one 11.10, and would like to use it. Any help would be GREATLY appreciated. Thank you

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• why boinc now on ubuntu 12.04 just run 2 tasks?

  - by user49523

  i use to have when i have the computer turn on and was idle having more than 2 tasks running at same time.. but now this is not happens and it is enable at maximum of 2 tasks at same time, i don know why. also i was able 2 do that on ubuntu 11.10 not sure if is the same using boinc on ubuntu 11.10. so why this happens? and how can i set up boinc 2 run more than just 2 tasks at same time in ubuntu 12.04 beta?

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• What steps should be taken to make sure your software is usable by disabled people?

  - by Cromulent

  I want to make sure a piece of software I am writing is usable by people with various disabilities such as blindness and an inability to use a mouse and / or keyboard. Unfortunately I have no experience with things such as screen readers or other methods that disabled people use to make using a computer easier / possible. I've never really had much experience with disabilities at all and unfortunately I don't know any disabled people who I can ask. I was wondering what other people do to make sure that their software is available to a wide range of people with varying abilities? This seems to be a subject matter that is often ignored by developers and I think it is a real shame.

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• Someone erased the mac os x with ubuntu, how do i get it back?

  - by Azarius Jenkins

  so for a further detail about this, my friend has a macbook pro thats all i know about it specfically aside from the fact it was running os x lion. before this guy got a hold of the computer that he knows, I could hit the command key and the R key to get to the disk utilities and what-not to install OS X Lion on it, but now since whomever my friend let touch th mac, i no longer and do any of the start-up keys for it.. I've been trying to geth the mac os x lion on there and im having no luck what-so-ever, if anyone could help me with this i would be greatly appreciative... if you need anymore info that i may be able to provide please feel free to ask. thank you again.

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• How to attend one off lectures? [closed]

  - by Senthil Kumaran

  Many times, we come across one-off lectures from famous Computer Scientists. Last year, I came across one by Ms. Barbara Liskov, but I could not go because the University Hall was bit far. Tomorrow, there is one by Dr. Knuth! Now the problem I am facing is, "I don't know much about the material he is going to talk", so I am not sure if I should plan and I fear it will be like going for a "temple". :) What is your advise and general strategy that you have followed whenever you wanted to attend a talk or lecture wherein, it may have been worthwhile if it were an introductory tutorial, but instead you were sitting in an advanced 1 hour lecture by a famous scientist.

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• Catalyst forgets monitor settings after reboot or log out in 12.10

  - by Mate Weisz

  I have a Samsung monitor connected to my ATI Radeon graphic card via HDMI. By default the screen has a black border around, but I can disable it in the Catalyst menu to get full screen. (There is a scalebar that I have to set to the highest value.) My problem is that every time I turn off and on my computer it changes back and I have to set it up again. It is really annoying. Is there any way to make this setting permanent? Notes: 1. I open Catalyst with admin rights. 2. When I open the Catalyst settings menu, it looks like that it keeps my settings, because the scalebar stays at the highest point, but still it doesn't scale up my screen until I move back and forth the scale bar to the same point

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• Mouse cursor lag after lock screen, 64 bit 12.04

  - by Bill Jones

  Recently I have noticed that when I return to my computer after it has been "locked" for a while, the mouse pointer has significant lag. The cursor position appears to only update a few times a second. Moving the mouse results in the pointer "following" the movement in a jerky kind of way, and then continuing for some fraction of a second after I have stopped using the mouse. Replacing the mouse has no effect. (I have two differently branded and constructed usb optical mice). Plugging either mouse into a different usb port has no effect. Once the problem was resolved by "suspending" the system, and then re-starting it with the power switch, but this does not work every time. So far, the only fool-proof fix is to shut the system down and re-start it (re-boot). I have tried this suggested fix. It had no effect.

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• Why won't Remmina connect to Windows 7 Remote Desktop?

  - by rfc1484

  I'm using Ubuntu and I'm trying to connect to another machine in a different network using remote desktop. In Windows7 I have made the following in order to activate remote desktop: I've gone to computer - properties - remote settings I've selected the option: "Allow connections from computers running any version of Remote Desktop I've opened "Windows Firewall with Advanced Security" In inbound rules I've enabled the rules for remote desktop (public and domain) I have also installed Remmina in the Ubuntu machine. For configuring it I did the following steps: Selected the RDP protocol In the server input I have written the Windows machine public IP. In username / password I have typed my login credentials (the same as my Windows admin account) But when I try to connect I get this error message: "Unable to connect to RDP server 89.130.251.160" If I ping my Windows7 machine, I have a correct response. Any suggestions?

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• What does a programmer really need to become a professional?

  - by Dehumanizer

  There are huge numbers of programmers, especially juniors, who need good assistance in becoming professional. I've heard a lot of about "books every programmer should read", etc. I have two years of programming experience, feel good in C++, but currently have a strange feeling, that I do not know anything about programming. I should read Algorithms by Cormen, Code Complete by McConnell etc., but I don't know the exact steps required to become a professional. What should we do? What should we learn? Operating systems? Computer organization? Algorithms? C++ in depth? How much time do we have to spend to become what we want?

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• can not get Toshiba tv to full resolution

  - by Tloc2077

  I have a 23inch Toshiba model#23L1350U that I am using as a computer monitor via VGA plug; it is a full 1080P resolution TV but in Ubuntu it shows up as a Toshiba 72inch Television and wont go past the resolution 1366 by 1768. Has anyone came up with a solution to this problem..I used to get full 1080 resolution with my Insignia 32 inch TV so I know my hardware can push the signal, I am running a Radeon x1550 graphics cars 3200+ processor on a 756 chip set 64bit version of Ubuntu 13.04 your help is greatly appreciated and you may or may not be compensated for your time

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• Programming jobs for a science based degree [on hold]

  - by clairharrison

  I am currently in my last year of a Masters in Physics at Uni and I am looking to go into a job that is mainly programming based. As part of my course we have learnt C++, Matlab and as a hobby I taught myself HTML, CSS, JAVA and a bit of JavaScript. After getting to this stage in my degree I've realised that its actually the programming side of Physics that I enjoy most. I've been working on a few Android apps & websites in my spare time but only things that utilize what I know in JAVA, HTML etc. Using Physics in programming is good fun but I don't want to limit myself just to Physics based jobs. I just want to know a few things: What kind of jobs can I apply for that would require the kind of skills I already posses/can work towards possessing in a year Can I compete with graduates who have had a lot more programming in their course for example Computer Science? Are there any specific extra things I need on my CV before I start applying for these jobs?

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• How to Deauthorize Flash Content Before You Sell Your PC

  - by Taylor Gibb

  When it comes to selling your old digital equipment you usually should wipe it of all digital traces with something like DBAN, however if you cant there are some precautions you should take, here’s one related to flash content you may have viewed on your PC. When you rent or purchase a movie over a service that uses flash, it authorizes your PC to play that particular content. When you sell your PC, unless you deauthorize your PC, the new owner will still be able to view and play the content your purchased. 6 Ways Windows 8 Is More Secure Than Windows 7 HTG Explains: Why It’s Good That Your Computer’s RAM Is Full 10 Awesome Improvements For Desktop Users in Windows 8

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• How do I install drivers for an AMD Radeon HD 6450?

  - by vanysha

  Hi everyone! I bought new computer. The Graphics card is AMD Radeon HD 6450, on Windows 7 it works fine but I try to install driver on Ubuntu, and it says that "No supported adapters detected". I downloaded the driver from here. After installing "Aditional drivers" says that driver is installed. Also my screen resolution in Ubuntu is not maximum. Can you help me install proper driver, please? Thanks in advance!

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• how to get started with a game engine [closed]

  - by user19343

  I'm a 3rd year Computer Science student and I would like to get started with building a game engine or at least tinkering with making one. I am curious if there are any good resources to use to get started. I get the idea behind different pieces in the engine, but I'm not really sure about how they fit together. Is there anything out there to help teach me the skeleton of a game engine? So far I've been playing with the idea of a game engine that uses modules built in a circular linked list so that each can do it's computing and then pass move to the next piece of the engine to work.

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• Windows 8.1 Ubuntu will not run after restart

  - by leslie canfield

  I have been searching the internet forever now, but I am using wubi on a windows 8.1 laptop. I have properly burned the newest version of Ubuntu, I have never done this before, so please put the answer in simple terms. When I open wubi it comes up with these options: -reboot now -manually reboot later I put reboot now, and it reboots with no changes or differences to my operating system. The installer does not pop up upon rebooting and I have no idea what to try. I am a totally newbie at this. Please help me. I am using an Asus computer.

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• Function keys and Hot are switched

  - by Brian

  I recently got a new laptop and installed 12.10 on it. I noticed right away that the "hot keys" on the F keys didn't always do what was pictured and also I noticed that the "hot keys" and the function keys were reversed. e.g. to close a window I have to hit alt-fn-F2 instead of just alt-F2. This is pretty annoying because I've been using the same keyboard shortcuts for years and I don't really want to have to re-learn them. I would also like to switch what the hot keys do, for example the F3 key is pictured as increase screen brightness but it really puts the computer to sleep. I would like to change this back to increase the brightness I looked in keyboard shortcuts settings but these options are not in there. I also downloaded gconf-editor but was unable to find where to change the shortcuts on it. (they weren't at apps \ metacity \ keybinding_commands like others described) any help would be greatly appreciated

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• How should I set up UDK with Git and CruiseControl?

  - by Martin Sojka

  For a new project in UDK, I'd like to set up a Git repository for version control and a CruiseControl.NET-based continuous integration solution. The good news is that he first part seems easy enough and CruiseControl.NET can work off Git repositories. The bad news is that according to my searches, nobody has ever tried to do this. Ideally, I'm looking for a step-by-step guide on how to set up such a development environment assuming more than one development computer, one central repository for the "master" branch, and one machine for building and packaging the binaries via CruiseControl.NET. Related: Version control system for game development with UDK? Options for UDK and version control repositories? CruiseControl.NET and Git

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