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• Announcement Oracle Solaris Cluster 4.1 Availability!

  - by uwes

  On 26th of October Oracle announced the availability of Oracle Solaris Cluster 4.1. Highlights include: New Oracle Solaris 10 Zone Clusters: customers can now consolidate mission critical Oracle Solaris 10 applications on Oracle Solaris 11 virtualized systems in a virtual cluster Expanded disaster recovery operations: Oracle Solaris Cluster now offers managed switchover and disaster-recovery takeover of applications and data using ZFS Storage Appliance replication services in a multi-site, multi-custer configuration Faster application recovery with improved storage failure detection and resource dependencies management New labeled security environment for mission-critical deployments in Oracle Solaris Zone Clusters with Oracle Solaris 11 Trusted Extensions Learn more about Oracle Solaris Cluster 4.1: What's New in Oracle Solaris 4.1 Oracle Solaris Cluster 4.1 FAQ Oracle.com Oracle Solaris Cluster page Oracle Technology Network Oracle Solaris Cluster page Resouces for downloading: Oracle Solaris Cluster 4.1 download or order a media kit Existing Oracle Solaris Cluster 4.0 customers can quickly and simply update by using the network based repository.   Note: This repository requires keys and certificates which can be obtained here.

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• Adding partitions to dual boot on Windows

  - by Bernard

  I am trying to install Ubuntu 12.04 along side Windows 7 on an HP mini 210 netbook. I have down loaded an iso image OK and got the installation program working but I am having problems with partitioning. I want to keep my Windows installation intact so I am following the 'Other' installation route. I have managed to shrink the main Windows partition down to 50GB leaving 250GB free space but I can't find a way of adding any extra partitions for Ubuntu. The free space gets listed by the installer as 'unusable' but on the graphic at the top its called 'free space'. If I select this and click 'Install Now' I get an error message: 'No root file system is defined'. I have tried clicking the Add, Change Delete and New Partition table buttons with the unusable partition selected and nothing happens. How do I define a root mount point when I do not have any Linux partitions?

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• Wifi hotspot to connect to Android using non-AP supported cards

  - by 3l4ng

  I'm running Ubuntu 13.10 64b on a Dell Inspiron N5010. My wireless device (found using lspci) is Broadcom Corporation BCM4313 802.11bgn Wireless Network Adapter (rev 01). I bought a new android phone and want to connect to Internet by using the laptop as a Wireless Access Point (ad-hoc doesn't work with Android). I tried following tutorials like the one at How to setup a wi-fi hotspot (access point mode)?. The relevant output from iw list was Supported interface modes: * IBSS * managed Running sudo hostapd /path/to/conf/file gave me (eth1 is the wireless, verified by iwconfig) Failed to create interface mon.eth1: -95 (Operation not supported) Could not set channel for kernel driver eth1: Unable to setup interface. Could not connect to kernel driver. I am able to use Connectify and Virtualrouter on Windows, and the phone works great. How do I get an access point running on Ubuntu? I'm open to other alternatives as well.

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• Fonts look horrible in any java application

  - by Eirik Berg

  All fonts in java applications look horrible. I have seen a few questions about this previously, but they are quite old now(11.04 was the most recent, but that didn't seem to be the same problem). For some reason java applications do not use the system font (Ubuntu 11), but rather some elongated font that doesn't seem to have any anti-aliasing. So what I'm asking is if this is an open bug(couldn't find any on launchpad), something the developers have done wrong, or if there is a way to configure the fonts used in java application. Perhaps this is just a shortcoming of openjdk and I should install the Sun version instead? Attached an image showing jitsi, but the problem is also present in minecraft, my internet-bank and anything else involving java. I'm on 12.04, but since I couldn't find anything on launchpad I'm assuming that isn't relevant. Edit: actually managed to forget the picture... Thanks!

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• Turn-based Strategy Loop

  - by Djentleman

  I'm working on a strategy game. It's turn-based and card-based (think Dominion-style), done in a client, with eventual AI in the works. I've already implemented almost all of the game logic (methods for calculations and suchlike) and I'm starting to work on the actual game loop. What is the "best" way to implement a game loop in such a game? Should I use a simple "while gameActive" loop that keeps running until gameActive is False, with sections that wait for player input? Or should it be managed through the UI with player actions determining what happens and when? Any help is appreciated. I'm doing it in Python (for now at least) to get my Python skills up a bit, although the language shouldn't matter for this question.

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• Oracle Database 11g Release 2 is SAP certified for Unix and Linux platforms.

  - by jenny.gelhausen

  SAP announces certification of Oracle Database 11g Release 2 on all available UNIX and Linux platforms. This certification comes along with the immediate availability of the following important options and features: * Advanced Compression Option (table, RMAN backup, expdp, DG Network) * Real Application Testing * Oracle Database 11g Release 2 Database Vault * Oracle Database 11g Release 2 RAC * Advanced Encryption for tablespaces, RMAN backups, expdp, DG Network * Direct NFS * Deferred Segments * Online Patching All above functionality has been fully integrated within the SAP products so they can be utilized and managed from within the SAP solution stack. All required migration steps can be done fully online. Learn why Oracle is the #1 Database for Deploying SAP Applications SAP Certification announcement var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www."); document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E")); try { var pageTracker = _gat._getTracker("UA-13185312-1"); pageTracker._trackPageview(); } catch(err) {}

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• What are the best practices for rapid prototyping using exclusively HTML/CSS/JS

  - by charlax

  I'm developing a prototype of a web application. I want to only use HTML, CSS and Javascript. I prefer to use my text editor and not having to learn (or pay, for that matter) a new tool like Axure. What would be, to your mind, the best practices? To me there are many qualities for a good prototype: Quickly developed Easy to improve Fair fidelity as regards UX (this disqualifies tools like Omnigraffle or PowerPoint that are more dedicated to wireframing) I trying to learn as quickly as possible, but I would like to know, based on your experience, on how you managed to be both quick and agile. Reference: http://www.boxesandarrows.com/view/prototyping-with

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• How to enable 3D acceleration under VMware workstation 8?

  - by Yan Zhou

  I saw there are similar questions, but I don't think they answer exactly my questions. Did anyone managed to get 3D acceleration work under VMWare workstation 8? I have VMware 8.01 installed on Ubuntu 11.10. The guest I am trying is also Ubuntu 11.10. I manually installed vmware-tools and it went well, except the X-config part was skipped as it said the distribution driver is used. The guest runs well but it seems fall back to 2D mode. Does any one has any idea how to enable 3D acceleration under VMWare workstaion with Linux guest?

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• OS Analytics Post and Discussion

  - by Owen Allen

  Eran Steiner has written an interesting piece over on the Enterprise Manager blog about the OS Analytics feature of Ops Center. OS Analytics gives you a huge amount of information about the characteristics of managed operating systems and lets you track changes to these characteristics over time. Take a look; it's a useful feature. The OS Analytics feature is also the subject of the community call this week (Eran is leading that one too). It's at 11 am EST. To join the conference: Go to https://oracleconferencing.webex.com/oracleconferencing/j.php?ED=209833067&UID=1512092402&PW=NY2JhMmFjMmFh&RT=MiMxMQ%3D%3D If requested, enter your name and email address. If a password is required, enter the meeting password: oracle123 Click Join. To dial into the conference, dial 1-866-682-4770 (US/Canada) or go here for the numbers in other countries. The conference code is 7629343# and the security code is 7777#.

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• New to Java and Spring. What are some good design principles for an inexperienced java developer like me?

  - by Imtiaz Ahmad

  I am learning Java and have written a few small useful programs. I am new to spring but have managed to understand the concept of dependency injection for decoupling. I'm trying to applying that in my development work in an enterprise setting. What are the 3 most important design patterns I should master (not for interview purposes but ones that I will use every day in as a good java developer)? Also what are some good java design considerations and practices in coding specifically in Java? My goal is write good decoupled and coherent programs that are easy to maintain that don't make me standout as a java rookie. Stuff like not beginning my package names with com. have already made me precariously visible in my team. But they know I have 2 years of coding experience and its not in java.

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• Highly recommended: "5 Things SQL Server does different from what many developers expect" by Nico Ja

  A couple of weeks ago, the Belgian Techdays were held in Antwerp. Together with Scott Hillier I presented the SharePoint pre-conference sessions (watch them online over here, search for pre-conference or SharePoint). Even though Belgium is not a very big country, the Microsoft team managed to get some high profile speakers like Anders Hejlsberg and Scott Hanselman. But if you have like 60 minutes to spare there is one session that I'd really recommend to check out, not related to SharePoint, but...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Building a virtualized SPARC environment

  - by Owen Allen

  If you're interested in making effective use of virtualization tools like Oracle VM Server, there's a whitepaper on oracle.com that you should check out. The whitepaper starts with a few specific technologies and hardware: Oracle VM Server for SPARC, T4 Servers, Ops Center, Solaris 11, Sun Network 10GbE Switches, and Sun ZFS Storage Appliances. It then explains how to use them to plan and set up a virtualized environment, in which guests are grouped in Server Pools with high availability and are managed through Ops Center. It explains how Ops Center simplifies the management of logical domains by using custom plans to create new logical domains and managing their life cycle through its user interface. So, if you're interested in setting up a cloud and you want to avoid surprises along the way, have a look.

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• Lenovo Bluetooth keyboard not pairing on Ubuntu 14.04

  - by stevecoh1

  I have a brand new Lenovo Thinkpad 14.04. I also ordered a bluetooth keyboard. When I start the bluetooth app in Ubuntu, it quickly finds the keyboard. When I try to pair with it, though, it generates a number for me to type on the keyboard. I type the number, press ENTER, and yet it fails to pair. What could be the problem here? (Incidentally, after much gnashing of teeth, I inadvertently managed to completely wipe out the Windows 8.1 that came with the computer so it's all Ubuntu now.) EDIT: Hmm: I see a lock on the Bluetooth indicator. This sounds like it could be related. Not sure what to do about it. I didn't see anything about locking in the bluetooth app. I'm a bluetooth noob, by the way.

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• Connecting Google Analytics with Custom Search Engine AdSense

  - by Yochai Timmer

  I have a Custom Search Engine that I've created with AdSense. I've put that search engine as a site search in my Google Sites page. I've connected both the Custom Search Engine and the Google Site to my Analytics page via their settings pages. Now, I'm trying to get Analytics to show me the AdSense for Search statistics. I've managed to connect the Google Sites page, to the Analytics, and I can see the search statistics in the Analytics as well. But I can't get it to show the actual AdSense for Search statistics from the Custom Search Engine. How can I configure everything so I can get the AdSense for Search statistics of my Custom Search Engine in my Analytics page?

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• Black & White screen after resuming from Suspend [Ubuntu 12.04]

  - by Rakatash

  I recently thought of giving Linux a try with Ubuntu 12.04. So far I managed to figure out how to troubleshoot and fix some of my older issues. But i wasnt able to find a problem similar to mine. The issue is, whenever my laptop starts up after suspend, the screen stays black for a short while. then after that comes a black and white 8-bit kinda screen with nothing else. I am not sure if it's an issue with the graphic card or not. because I am able to write my login password and proceed normally if i wait till this screen shows up...after that everything is displayed normally. is there a fix for this?

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• Sigmatel sound card not working on an Dell XPS m2010

  - by ralph crowhurst

  I've installed Ubuntu 11.4 on my dell xps m2010 using wubi. Then booted up and could not connect to the Internet using 3three huawei e122 usb mobile broadband (I would like this to work also). I've managed to connect through a wireless network, I went to my favorite sites and was told I needed to install adobe flash player.This what I did players run and picture is good. But there is no sound! Then I've tried to play songs in Banshee, but no sound. I have checked everything in sound preferences including test speaker, there is sound. I have sigmatel sound card. Thanks

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• Speaking at the Great Indian Developer Summit

  Ill be speaking at the Great Indian Developer Summit from April 20 23  at the Indian Institute of Science in Bangalore (Bangaluru), India. This will be my first ever to the GIDS and hopefully it will be a real great experience all together and opportunity to meet few cool people back there. I will be speaking on .NET day on : Developing with the Windows API Code Pack for Microsoft .NET framework Extending Visual Studio 2010 with MEF (Managed Extensibility framework)   Session...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• My VPS cannot send email

  - by ifdion

  Webmaster Newbie Question I have a low end vps (128MB RAM)running on Debian.I used a bash script by ilevkov to setup the site. After some trial and error, I managed to set up a WordPress on it. Just now I found out that my VPS can't send any email. I tested using the WordPress reset password email, and it shows The e-mail could not be sent. Possible reason: your host may have disabled the mail() function... After some Google session I noticed that I can send email from ssh. So I tried mail [email protected] Subject: Halo dion some message . and the result said EOT /usr/lib/sendmail: No such file or directory "/root/dead.letter" 9/243 . . . message not sent. The question How can I fix my VPS mail setting?

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• Ubuntu on AMD based Sony Vaio VPCY B15AG

  - by Gaurav

  Last week I bought a AMD E350 (AMD Fusion platform) based Sony VAIO (VPCYB15AG) having AMD Radeon HD 6310 graphics, I removed Windows that came along with and installed Ubuntu 10.10 (AMD64) using USB drive. During installation my touchpad was not working, I managed through keyboard, but after completing installation & restarting the machine still there was no touchpad support. Also there's no proper graphic card drivers. Even I tried connecting the USB mouse to it but the left key is not working and had to configure the mouse as left-hand to get the left click enabled. I tried searching for any possible solutions for these but found nothing helpful, is there any hope? What should I do to enable i) enable touch pad support ii) get higher resolution 1366x768, etc?

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• Fan running constantly on a Dell D420 laptop

  - by Halik

  I'm running latest Ubuntu 12.04 beta on a Dell D420 laptop. The fan is spinning almost constantly - even after turning the PC off, letting it cool down, and then turning it back on, the fan will turn on after some idle time. Not to mention any CPU work. The CPU temps are normal, in range of 50-55 idle, and up to 70 with some load. It wouldn't be an issue, but the same PC running Fedora, or Arch Linux, had a much more modest fan profile - the temps were managed while you seldom heard the fan. To counter the problem, I currently use i8k tools, set manual temperature thresholds which seemed to have worked, but the i8kmon has a tendency to cycle the fan between lower and higher state within aboutin a second intervals - which is extremely annoying. As far as I can tell I did not run any special software (beside laptop-mode-tools), or any additional kernel modules when running Arch Linux and I can't tell about Fedora.

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• How can I add the softwares I have installed from USC of kubuntu 12.04 into kubuntu 12.10 iso installation file

  - by Suhail cholassery

  I am currently using Kubuntu 12.04. I don't have strong high speed Internet connection and managed to get Kubuntu 12.10. I found that it's size is about 1GB. I have a lot of softwares installed in my current Kubuntu 12.04 via Ubuntu Software Center I would like to Add these software to Kubuntu 12.10 installation iso file. I don't want to download packages from Ubuntu customization kit (UCK) or similar software. I don't prefer using APTonCD or similar software. What I want is to add these software into this Kubuntu 12.10, so that they appear along with the default application which will be installed as default when the OS is installed. Is this possible?

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• Two Wifi Icons in Panel [Solved]

  - by Alex

  I have the exact problem in 13.10 as this user Two Wifi indicators in panel. Here are some screenshots: Here are some screenshots from another user: http://ubuntuforums.org/showthread.php?t=2183020&p=12825563 ifconfig and iwconfig outputs $ ifconfig lo Link encap:Local Loopback inet addr:XXXXXX Mask:XXXXXXX inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:2243 errors:0 dropped:0 overruns:0 frame:0 TX packets:2243 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:209889 (209.8 KB) TX bytes:209889 (209.8 KB) wlan0 Link encap:Ethernet HWaddr XXXXXXXXX inet addr:XXXXXX Bcast:XXXXXXXX Mask:XXXXXXX inet6 addr: XXXXXXX Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:5925 errors:0 dropped:0 overruns:0 frame:0 TX packets:3361 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:2951818 (2.9 MB) TX bytes:630579 (630.5 KB) $ iwconfig lo no wireless extensions. wlan0 IEEE 802.11abgn ESSID:"XXXXX" Mode:Managed Frequency:2.437 GHz Access Point: XXXXXXXX Bit Rate=72.2 Mb/s Tx-Power=15 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:on Link Quality=49/70 Signal level=-61 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:153 Invalid misc:472 Missed beacon:0

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• Extract derived 3D scaling from a 3D Sprite to set to a 2D billboard

  - by Bill Kotsias

  I am trying to get the derived position and scaling of a 3D Sprite and set them to a 2D Sprite. I have managed to do the first part like this: var p:Point = sprite3d.local3DToGlobal(new Vector3D(0,0,0)); billboard.x = p.x; billboard.y = p.y; But I can't get the scaling part correctly. I am trying this: var mat:Matrix3D = sprite3d.transform.getRelativeMatrix3D(stage); // get derived matrix(?) var scaleV:Vector3D = mat.decompose()[2]; // get scaling vector from derived matrix var scale:Number = scaleV.length; billboard.scaleX = scale; billboard.scaleY = scale; ...but the result is apparently wrong. PS. One might ask what I am trying to achieve. I am trying to create "billboard" 3D sprites, i.e. sprites which are affected by all 3D transformations except rotations, thus they always face the "camera".

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• Pathfinding library

  - by Shivan Dragon

  I'm an amateur game developer and somewhat amateur Java developer as well. I'm trying to find a way to have path finding for my game(s). I've first Googled for some existing Java libraries that have various path-finding implementations, but I've failed to find any. It seems to me that the only way to get pathfinding code is to use it via a game engine (like Unity). But I'd just like to have a library that I can use and make the game loop and other stuff on my own. Failing to find such a library I've tried implementing some algorithms myself. I've managed to make a running A* in Java, but for fancier stuff like D* I find it hard to do it by hand. So then, my question is, are there any Java libraries that contain at least some basic pathfinding algorithms implementations?

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• Is it my responsibility to code for errors on a completely separate website and domain when redirecting or doing a single sign on?

  - by kappasims

  If my application is responsible for redirecting/doing a single sign on to a destination managed by a third party, in general, where should I draw the line for error handling during this process? If an error happens on the other application's end, is it reasonable for my stakeholder to expect the application I am working with to share responsibility for handling these scenarios? Notes: I am going to keep solutions limited to those that entail only one request--I am familiar with the "do an xmlhttprequest and see how that fares before doing anything else" approach. I am speaking in terms of an enterprise-level application with fairly decent customer traffic.

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