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• WiFi is painfully slow, sometimes stops altogether

  - by Zelda64fan

  Lately my WiFi connection has been quite slow, and sometimes I lose my internet connection altogether (but the computer does not actually disconnect from the WiFi network). This only affects my laptop and only when it's running Ubuntu, so I think it must be a problem with Ubuntu. I haven't changed anything recently; this is on 12.10 64-bit. What could it be? Update: It's doing this now. The connection isn't completely dead, it's just staying under 5 kB/s. Still frustrating though. It also seems to affect all users.

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• Authentication error when trying to upgrade from 11.10 to 12.04

  - by mahmuodmasri

  I wrote : ~$ do-release-upgrade and the system says: Checking for a new ubuntu release Get:1 Upgrade tool signature [198 B] Get:2 Upgrade tool [1551 kB] Fetched 1551 kB in 6s (167 kB/s) extracting 'precise.tar.gz' authenticate 'precise.tar.gz' against 'precise.tar.gz.gpg' exception from gpg: GnuPG exited non-zero, with code 2 Debug information: gpg: Signature made Thu 11 Oct 2012 07:47:10 AM EET using DSA key ID 437D05B5 gpg: can't open `/etc/apt/trusted.gpg' gpg: keydb_search failed: file open error gpg: Can't check signature: public key not found Authentication failed Authenticating the upgrade failed. There may be a problem with the network or with the server. Please help me!

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• cVidya’s MoneyMap Achieves Oracle Exadata Optimized Status

  - by Javier Puerta

  cVidya's MoneyMap running on Oracle Exadata provides extreme performance, including 4x-16x improvement in high data load rates, 4x faster data transformation and reconciliation, and query speeds - from a 2.5 billion record index –  improved from hours to few seconds! The MoneyMap solution enables operators to reconcile information from all network, operations and business support systems and through an on-going automated process, it detects problem areas which impact profitability as a result of revenue leakage, data inconsistencies or resources that are not being used efficiently. Once detected, MoneyMap provides tools to promptly correct and manage the problems to achieve profit maximization Learn more here.

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• How to properly code in Unity? [on hold]

  - by Vincent B.

  I'm fairly new to Unity (yet I touched it and made a few proto with it) and I'd like to know how I'm supposed to work with it. I'm student in programming so I'm used to C/C++ with SDL/SFML, writing code and only using Input/Graphics/Network libs. I followed a few Unity guides and it was way more around drag & drop on scenes and a bit of scripting to activate it all, which disturbed me. So I fond a way to only use one GameObject and use a Singleton to launch code and display stuff (for 2d games at least). At the end of the day I make games not using "Instantiate" or such at all. Is it the right way ? Am I supposed to do this ? How much are your scenes populated (in a professional environment) ? When should I stop coding and start using the editor ?

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• How do I duplicate a Box2d simulation, mid-simulation?

  - by Whyte

  I want to serialize the state mid-game, send it over the network to an identical computer (same CPU, same OS, same binary), load it there, and have the two games run in tandem doing the exact same simulation, without one of them drifting off and going haywire. In short: I want pop-in, pop-out networking support on my HIGHLY physics-intensive game, where sending object coordinates every few seconds is impossible, due to having thousands of objects, and many clients. I tried this with Box2D, and saving an object's location/velocity/etc wasn't enough... there's internal state that's not accessible through any public methods. My current workaround is to force EVERY client to save its entire worldstate and reload it from scratch, whenever a new player connects... but this is obviously bad practice, because it hangs the game for everyone whenever someone new connects. However, it works, with zero desynchronization. So, anyone know of any other techniques that can help me? Or should I just kiss my project goodbye?

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• Oracle Solaris 11.1 Now Available; Learn More About It at November 7th Webcast

  - by Larry Wake

  Oracle Solaris 11.1 is now available for download -- as detailed earlier, this update to Oracle Solaris 11.1 provides new enhancements for enterprise cloud computing. Security, network, and provisioning advances, in addition to significant new performance features, make an already great release even better. For more information, you can't do better than the upcoming launch event webcast, featuring a live Q&A with Solaris engineering experts and three sessions covering what's new with Oracle Solaris 11.1 and Oracle Solaris Cluster. It's on Wednesday, November 7, at 8 AM PT; register today.

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• Ask The Readers: What’s Your Favorite Co-Op Game?

  - by Jason Fitzpatrick

  For many readers, the weather is getting chillier and that means more time indoors. What better time to take a look at the best co-op games around? Jump in and put in a nod for your favorite game and setup. Wallpaper available here. Whether you’re playing DS-to-DS with your spouse, inviting all your buddies over for a whole-house LAN fest, or couch co-op’ing through your favorite RPG, we want to hear all about your favorite games and the ways you play them. Sound off in the comments with your co-op tips and tricks; make sure to check back in on Friday for the What You Said roundup to find some new titles to tide you over until the warm weather comes around again. How To Get a Better Wireless Signal and Reduce Wireless Network Interference How To Troubleshoot Internet Connection Problems 7 Ways To Free Up Hard Disk Space On Windows

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• The 5 stages reviewing bad TSQL

  - by Mike Femenella

  I'm working with an app team that is light on TSQL expertise this week and couldn't help but draw a parallel to the 5 stages of grieving. Denial: There’s nothing wrong with the code SQL Server has a bug in it. There is a network problem. Anger: You’re doing what in your code?! Why on earth are you doing that? That’s crazy. Bargaining: Fine you can keep your cursor but let’s speed things up a bit. Depression: Ugh, this is so horrible I’m never going to be able to fix all of it. Acceptance: Ok, we’re screwed and we know we’re screwed. This is going to hurt…

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• No wireless after resuming from suspend?

  - by lapor

  When I resume my computer from suspend it doesn't want to connect to any wireless connection. It looks like it is connecting, but after a while it asks me to retype a password for wireless connection. It connect after I restart it. I am using Toshiba Satellite A210 and Ubuntu 10.10 (I have the same problem with 10.04 and 11.04 beta2. 14:00.0 Ethernet controller: Atheros Communications Inc. AR5001 Wireless Network Adapter (rev 01) Subsystem: Askey Computer Corp. Device 7128 Flags: bus master, fast devsel, latency 0, IRQ 19 Memory at cfcf0000 (64-bit, non-prefetchable) [size=64K] Capabilities: <access denied> Kernel driver in use: ath5k Kernel modules: ath5k Should I file a bug?

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• What kind of programmer job positions are there in professional game development? [on hold]

  - by skiwi

  I have been wondering the following since recently, seeing as I want to pursue a career in game development after university: What programmer job positions are there in professional game development? Think about AAA titles, etc. What programming language are the most commonly used ones in that area? I can think of some job aspects, like game engine, network, centralized server and artificial intelligence. I am just wondering what options I have later on, and in what programming languages I should invest right now. I am quite proficient with Java, and also wondering if that is of any help.

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• How to Automatically run two commands after login?

  - by Covi

  I have these two commands that I need to manually run every time after login: autossh -M 2000 -N -f -q -D 127.0.0.1:7070 [email protected] and sudo mkdir /media/C sudo mount /dev/sda2 /media/C I'd like to make them automatically run every time I boot and login to my computer. I'm currently using 10.04LTS. BTW, I only vaguely know what init.d or runlevel mean. But I still prefer to know a command-line based way to achieve this, not a fancy GUI way. Also, the autossh will only succeed after Ubuntu automatically detect and connect to my network, so should we let it retry infinitely until successfully executed? Thank you!

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• How do I disable the upgrade to new version warning? [duplicate]

  - by Anatoliy

  This question already has an answer here: Disable Ubuntu Update Manager's new version warning 2 answers After I allowed Ubuntu on my notebook to upgrade to 13.4, it lost Wi-Fi connection. Network menu does not show wireless access points, but according to syslog it establishes connection. Also, the wireless router provides IP address to the host. I don't want to spend time on debugging and solving the problem that most probably will reappear with new update, so I decided to reinstall 12.10 version. It recognized Broadcom Wi-Fi modem right after the boot, and everything went great, until today I powered it on and suddenly found that it is running 13.4 and all my problems are back! Is it possible to instruct it to stay with 12.10 until I decide to upgrade?

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• XFCE4 Empty Volume Control Applet

  - by adamt

  I just wanted to ask, what could I mess up? My situation is this: In XFCE4.10 (!) on the panel0 I put the Indicator Applet. It always showed me the volume control and network icons. When I updated to 13.10 and after cleaned some stuff, removed some orphaned package, I noticed, the volume control applet is showing mute and if I clicked on it there is an empty drowdown menu like 10x5 px.. Now it became completely useless. So my question is WHAT should I reinstall or change to get the control work?.. :/ Thanks.

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• Is it possible to grant access to a folder in a SVN server using SVN's API?

  - by Splendonia

  I need to develop a web application (Using any language but I'm familiar with Frameworks Symfony2 and Rails), that is able to grant access to a user to a determined folder on another server on the same network from the application's front-end. I found out that SVN has an API and that I could interact with it with PHP or Ruby (Apparently), although I would be willing to program the application on another language, the server where the files are stored is using Windows and I thought on using Virtual SVN server, however I can't find any function on the API to grant users access to files and/or folders or access of any kind, like you usually do using the GUI (VirtualSVN on Windows). Am I missing anything? Is this even possible?

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• Progressing past CRUD applications in PHP?

  - by Anonymous -

  I've been programming in PHP for about a year and am at the following stage: Have a good 'feel' for the language Can create CRUD applications competently Can utilize an MVC structure to allow for future expansion of code Using the points listed above, I've created a number of my own applications for practise - including but not limited to; a forum, social network etc. My question may be a little vague but should hopefully be answerable. I feel as though there isn't anything else I would need to know about PHP to allow me to create websites, though I'm sure I'm wrong. What advanced/complex PHP topics could I look at that have a real-world use and will allow me to enhance both my skill as a programmer and applications in general? Recently I've looked a lot more at javascript/jQuery allowing me to give my applications a richer user interface which has been a great learning experience and proving very useful.

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• My wireless connection isn't working well

  - by Maikel Braas

  So this is my problem, I intalled ubuntu 12.04 with the wubi.exe and everything works fine, but my internet connection. When I try to install a program or use firefox, it goes with 24kb/s with a little luck for 1-2 seconds and then my internet terminates and it starts up again after 3-5 mins. Then it goes with an other 24kb/s and this will repeat. The thing is my connection works perfectly with windows. The laptop its running on is a Acer ASPIRE V3-771G. I tryed using a different network adaptor but that didn't help either. Please, some one help me with this. friendly regards, Maikel

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• Windows 8 Style Ultimate Tile Theme Backgrounds [Wallpaper Pack]

  - by Asian Angel

  Are you excited about Windows 8? Then add a Windows 8 Tile look to your desktop with this awesome wallpaper pack! Note 1: The wallpapers are set up in a .themepack format but can be easily opened/unzipped with a file zipping software such as IZarc, 7-Zip, PeaZip, etc. Note 2: The wallpapers come in two groups. Group #1 (1920*1080) comes with red, yellow, green, blue, and black wallpapers while Group #2 (1728*1080) comes with red, yellow, green, and blue wallpapers. Ultimate Tile Themepack [deviantART] What is a Histogram, and How Can I Use it to Improve My Photos?How To Easily Access Your Home Network From Anywhere With DDNSHow To Recover After Your Email Password Is Compromised

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• how much knowledge do you need to call yourself a programmer?

  - by nore

  There is a guy who calls himself c/c++ programmer, but what does he actually know? What knowledge about c++ does he have because there are so much to know about c/c++. So he knows the core language? He knows visual c++? He knows how to program with WIN API? He knows how to program in linux with gtk? Network programming? The real question is: What do you need to know, to be called a c/c++ programmer ,because I know c and I really do not feel like I own the power of programming... please illuminate my path.

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• Number of iterations to real time

  - by Ivansek

  I have an animation of traffic. I have 20 cars in road network, each car have a starting node and end node. Each car know how much distance does it need to travel in order to reach the end node. I move cars each 20 ms for 10 px. To move all cars from their start node to end node I need 60 iterations. That is 60*20ms = 1200ms. Now I want to convert this time, or use data that I have, to a real time where car move 50km/h. How can I do that? Any idea?

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• Good Bye FY'14

  - by rajeshr

  As we welcome Fiscal Year 2015 at Oracle, looking forward to an exciting times ahead, let me take a moment to reflect on the last few laps of the FY'14. No better way to do that putting up pictures that speaks thousand words. A huge batch who attended back to back programs on Solaris 11 Network Administration, Solaris ZFS Administration, Solaris Zone Administration (19 - 30 May 2014) at Hyderabad. Transition to Solaris 11 session (5-9 May 2014) at Hyderabad. Exadata Install & Maintenance session (28 April - 2 May 2014) at Singapore.

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• Is It Possible for My Router to Wear Out?

  - by Jason Fitzpatrick

  Day after day your humble and hard working router holds your home network together and links it to the greater internet. Is it possible to work it to death? Today’s Question & Answer session comes to us courtesy of SuperUser—a subdivision of Stack Exchange, a community-drive grouping of Q&A web sites. HTG Explains: How Antivirus Software Works HTG Explains: Why Deleted Files Can Be Recovered and How You Can Prevent It HTG Explains: What Are the Sys Rq, Scroll Lock, and Pause/Break Keys on My Keyboard?

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• can't open youtube or vimeo

  - by wrt

  I can't open Youtube.com on computer with lubuntu and mint. I see that my flash works properly on other sites. Problem is in for example on youtube (yming.com loading without endless) and vimeo. I tried to use firefox and chromium. I thought that it would be problem with dns (I have dns from DHCP - opendns) so I changed to google dns but it didn't help to solve problem. When I use text browser - Links these site are opening well in text mode. I think that the problem is with flash or java. On other computer with windows connected to the same network these sites are being opened without problem. I am on the point that I don't know what to do next, because I tried to install and uninstall flash several times. I tried Flash-Aid as well.

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• How to minimize the data loss when laying off a programmer?

  - by thursdaysgeek

  I was just laid off and it was the standard process that is used in the US: call the person to talk to personnel, and remove access to the network while that is going on, then have someone help pack, always have someone with the person until they are escorted from the property. That is supposed to keep an unhappy developer from deleting or damaging software or data: to mimimize data loss. However, it still results in a lot of data loss, as all of the work the programmer was working on is dropped: software not checked in is possibly lost, documents not finished are lost, releases in process are slowed down or stopped, and a huge amount of knowledge could be lost. It seems the potential data loss is more than offset by the actual data loss. How can all losses, both potential and actual, be mimimized?

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• Would I benefit changing from PHP to Node.js (in context)

  - by danneth

  The situation: We are about to roll out what is essentially a logging service. As we are rather PHP heavy, the current implementation use it. We will have about 200 computers (most on the same network) that will each send, via HTTP POST, around 5000 requests/day. With each request containing about 300 bytes of data. The receiving end is hosted at Amazon and is a very simple PHP form with some simple validation that puts everything in a database. Now, I've recently been introduced to Node.js and I'm curious as to if it would be a good fit for the backend here. Granted I could easily build something to test this. But since I haven't fully grasped the async-methology I would really like someone with experience to explain it to me.

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• JET now available on OTN

  - by mramcha

  I know some of you have been waiting patiently, so I'm pleased to announce that the JET bundle is now available for download on the Oracle Technology Network. I've migrated most of the content from the old Sun wiki site, and got the download in a single handy location on OTN. Download JET now.  The version available is the current latest, which is 4.9.4. This version contains a number of updates, the most significant of which is the ability to specify slot locations instead of the traditional cXtYdZsN nomenclature. This is pretty useful when trying to Jumpstart multiple servers with SAS2.0 based HBAs, as they will have the WWN embedded in the cXtYdZsN name, and it's pretty difficult to guess what that will be until you've booted the server. The JetSDS and JetZFS modules have also been updated to use the slot terminology. Happy JETing,

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