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• How do you add a certificate for WLAN in Linux, at the command-line?

  - by Neil

  I'm using Maemo on a Nokia n810 Internet tablet, and when given a list of installed certificates to choose from when connecting to a PEAP wireless network, it's always blank. I've already installed a couple of certificates through the gui on the device, and only the certificate authorities show up. I've confirmed that Maemo's connection software that handles certificates is buggy, in such a way that certificates are never added, or properly added certificates cannot be found. Is there a way to add WLAN certificates at the command-line, and connect to a wireless network at the command-line as well? I used to use iwconfig to connect, but I never used it with PEAP. Note: I have nothing in /etc/ssl/certs

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• Installing Apache2 and PHP5 on a XServe G5 running 10.4

  - by Chris

  Hello- I have an Apple XServe G5, running OS X Server 10.4. I want to update my Apache installation from 1.3 to 2 and PHP to 5. I also want to install PHP GD support. I have scoured the internet for a guide on how to do this, but to no avail. I also tried to use Entropy to install PHP 5 several times, and it always manages to royally mess up my system. Obviously I can't install Leopard or Snow Leopard because it is a PowerPC processor. Can anyone give me any tips on how to get this software updated or point me to a guide? Thanks, Chris

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• Can't ssh to instance

  - by megas

  I have a linode instance, I was successfully connecting to it via ssh. But I've decided to rebuild my instance and then I can not connect to that instance via ssh. The linode works correctly because I can get access via Lish (lonode ssh) I've tried to clear known_hosts with: ssh-keygen -R 212.71.xxx.xx But I still getting message: ssh [email protected] -v OpenSSH_5.9p1 Debian-5ubuntu1.1, OpenSSL 1.0.1 14 Mar 2012 debug1: Reading configuration data /etc/ssh/ssh_config debug1: /etc/ssh/ssh_config line 19: Applying options for * debug1: Connecting to 212.71.238.74 [212.71.238.74] port 22. debug1: Connection established. debug1: identity file /home/megas/.ssh/id_rsa type 1 debug1: Checking blacklist file /usr/share/ssh/blacklist.RSA-2048 debug1: Checking blacklist file /etc/ssh/blacklist.RSA-2048 debug1: identity file /home/megas/.ssh/id_rsa-cert type -1 debug1: identity file /home/megas/.ssh/id_dsa type -1 debug1: identity file /home/megas/.ssh/id_dsa-cert type -1 debug1: identity file /home/megas/.ssh/id_ecdsa type -1 debug1: identity file /home/megas/.ssh/id_ecdsa-cert type -1 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.9p1 Debian-5ubuntu1.1 debug1: match: OpenSSH_5.9p1 Debian-5ubuntu1.1 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.9p1 Debian-5ubuntu1.1 debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: server->client aes128-ctr hmac-md5 none debug1: kex: client->server aes128-ctr hmac-md5 none debug1: sending SSH2_MSG_KEX_ECDH_INIT debug1: expecting SSH2_MSG_KEX_ECDH_REPLY debug1: Server host key: ECDSA c5:c3:a7:c0:5a:25:a1:64:c4:04:0c:42:bb:46:f6:96 debug1: Host '212.71.238.74' is known and matches the ECDSA host key. debug1: Found key in /home/megas/.ssh/known_hosts:1 debug1: ssh_ecdsa_verify: signature correct debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: Roaming not allowed by server debug1: SSH2_MSG_SERVICE_REQUEST sent debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey,password debug1: Next authentication method: publickey debug1: Offering RSA public key: /home/megas/.ssh/id_rsa debug1: Authentications that can continue: publickey,password debug1: Trying private key: /home/megas/.ssh/id_dsa debug1: Trying private key: /home/megas/.ssh/id_ecdsa debug1: No more authentication methods to try. Permission denied (publickey,password). How to resolve this problem? Thanks

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• Flash player stops working in Firefox

  - by Alin

  First of all please be merciful as I am a 2 days ubuntu user. I've only used Windows OSs before. Hardware configuration -Quad Core Q6600 CPU -4 GB RAM -Geforce 8800GT 512 MB RAM -Seagate 320GB Harddisk I installed ubuntu x64 and everything went smooth. I had Adoble flash player installed from Ubuntu Software Center. The problem is that the flash videos on youtube (basically on all pages) looked pixelate. I use Firefox 3.6 that came with ubuntu by default. After reading around here I saw something about overriding hardware acceleration but that didn't work either. Or maybe I just didn't do it correctly. The problem was that if I opened 2-3 youtube tabs, when closing one of them, in 95% of the cases, the flash plugin would crash in remaining tabs and a black screen was instead of the video. After doing some more search I discovered the FlashAid extension for Firefox. I installed it and it made an update of flash plugin. Now the videos look good but now each time I watch a video, when switching to another one the flash plugin crashes and I can see insead of the vide the firefox message with Plugin has crasshed, refresh the page. Basically this is what I miss to have a complete pleasant ubuntu experience. Any ideas how to fix this? Thank you

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• Programs minimized for long time takes long time to "wake up"

  - by bart

  I'm working in Photoshop CS6 and multiple browsers a lot. I'm not using them all at once, so sometimes some applications are minimized to taskbar for hours or days. The problem is, when I try to maximize them from the taskbar - it sometimes takes longer than starting them! Especially Photoshop feels really weird for many seconds after finally showing up, it's slow, unresponsive and even sometimes totally freezes for minute or two. It's not a hardware problem as it's been like that since always on all on my PCs. Would I also notice it after upgrading my HDD to SDD and adding RAM (my main PC holds 4 GB currently)? Could guys with powerful pcs / macs tell me - does it also happen to you? I guess OSes somehow "focus" on active software and move all the resources away from the ones that run, but are not used. Is it possible to somehow set RAM / CPU / HDD priorities or something, for let's say, Photoshop, so it won't slow down after long period of inactivity?

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• The Oracle VM Hall of Fame

  - by Kristin Rose

  “Take me out to the ball game, take me out to the crowd. Buy me a new Oracle VM, I want my competition to be history!”...Yes, baseball is in full swing, and as we make our way to the closing of the quarter, Oracle is ready to “knock it out of the park” with its newly updated release of Oracle VM 3.1. This home run of a server virtualization solution will let you deploy software faster, as it intelligently manages your entire infrastructure, from application to disk. As if that wasn’t enough, the competition can’t even get on base! Have a look at the final score below: Partners will be hitting grand slams left and right because management tools, application templates and single source support, have all teamed up to create one heck of a curve ball for the competition, but more importantly, an absolute first draft pick for our partners. With no license cost and an affordable enterprise support cost, crowds have gathered to see this ‘All Star’ play some hard ball. Watch as Jeff Doolan, Sr. Director of Linux and Virtualization Channel Sales at Oracle, goes into more depth on how Oracle VM is a real game changer and eliminates the competition.Adding to the line-up are two key components of Oracle VM 3.1: Enhanced Ease-of-use: The new GUI design is engineered for faster execution of workflow and to maximize ease of use and reduce deployment time. Administrators have more time to spend at the ball park or focus on the business.New Oracle VM Templates: such as the Oracle E-Business Suite 12.1.3; Oracle PeopleSoft FSCM 9.1; Oracle Enterprise Manager 12c; Oracle Linux 5.8; Oracle Linux 6.1; Oracle Solaris 11 – which add to the existing 100+ existing templates that are ready for download. Oracle VM Templates are pre-configured as an entire stack including OS and application fully tested, production ready and certified from Oracle.For more information on Oracle newest player, Oracle VM 3.1, read this press release or visit our technology information page. Batter Up,The OPN Communications Team

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• When does a Project Manager start in a project?

  - by johndoucette

  From a colleague of mine… “As a project manager, when do you typically like to get initially involved in the project? Is it better for the PM to be rolled on during the project kick-off, the first week, or is it better to roll-on the second week when things settle down?” My textbook answer is “the Project Manager is responsible for the successful completion and delivery of the expected outcome of the project through the following major tasks;” 1.    Identifying requirements 2.    Establishing clear and achievable objectives 3.    Balancing the competing demands for quality, scope, time, and cost 4.    Adapting the specifications, plans, and approach to the different concerns and expectations of the various stakeholders However; My colleague is often a lead technical consultant coming into a project alone to help a client solve a complex problem. As Magenic consultants, we all possess many of the “project managing” skills I talked about above and tend to be responsible for item #1 and #2 as well as the actual architecture/design tasks early in a project. When the real development begins and there is no PM involved, the project will quickly get harder to execute unless items #3 & #4 are assigned to a Project Manager. In software development, the concept of context switching between coding and other administrative activities is the hardest skill perfect. In my experience, I have rarely been introduced to someone who has mastered this skill. This is the limbo I was in when I was asked to become a PM -- while still developing. “Put down the code” was not only a profound statement, but looking back – a necessary one. Unless you are lucky to have found that one developer who is a superman, asking your developers (internal corporate or consultant) to perform #3 and #4 tasks, will surely take more time, allow opportunity for more scope, and eventually cost more. Project Managers are crucial to the overall success of a project, and I prefer them to start by taking ownership of delivery on day one.

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• What are the pros and cons about developing under MAC OS? [closed]

  - by user827992

  Sometimes i get the chance to program under MAC OS, i knew about this OS since Apple shipped its computers with a PowerPC by Motorola ( since Panther, more or less ), these days they are all X86 and i see no particular advantages about adopting this platform, also i see only downsides for the main part, i do not want to cause flames, please reply if you have a good answer or you can contribute in some constructive way. I'm trying to write a list of the natively supported languages, or the languages that comes only under MAC OS with some particular technology, my list is this: Objective C with Cocoa/Carbon I'm not considering personal preferences here, if a person X likes to code under Xcode it's probably ok to have a MAC, if a person Y likes to code under Visual Studio it's probably ok to not having a MAC, my purpose is to clarify what MAC OS is good for. I also do not get why people glorify the MAC for historical reasons, I mean a language like Java just comes for MAC only in the 7th edition of its JDK, things like GCC are just a porting and many technologies are out of the question like C# ( I'm sorry, i do not consider MonoDevelop like a serious alternative ) , .Net, ASP, DirectX, and many others are just, again, porting or free software, like PHP, MySQL, Javascript, XML, CSS, OpenGL, etc etc. My question is: what is so special about being a programmer under MAC OS? There is something that I have not seen? I also noticed that a significant portion of MAC users end up using their MAC like a normal Windows PC with Parallels or something like that. I can afford to buy a MAC, show me why this machine is so unique.

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• Mac OS needs Windows Live Writer &ndash; badly!

  - by digitaldias

  I recently bought a new  Macbook Pro (the 13” one) to dive into a new world of programming challenges as well as to get a more powerful netbook than my Packard Bell Dot which I’ve been using since last year. I’ve had immense pleasure using the netbook format and their small size in meetings (taking notes with XMind), surfing “anywhere”, and, of course blogging with windows live writer. So far the Mac is holding up, it’s sleek, responsive, and I’ve even begun looking at coding in Objective C with it, but in one arena, it is severely lacking: Blogging software. There is nothing that even comes close to Live Writer for getting your blog posts out. The few blogger applications that do exist on mac both look and feel medieval in comparison, AND some even cost money! It looks like some mac users actually install a virtual machine on their mac to run Windows XP just so they can use WLW. I’m not that extreme; instead, I’m hoping that the WLW team will write it’s awesome application as a Silverlight 4 app. That way, it would run on Mac and Windows (as a desktop app). I wonder if it will ever happen though…   PS: The image is of me, took it with the built-in camera on the mac and emailed it to the windows PC that I am writing on :)

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• Windows 7 Loading speed

  - by Sergiy Byelozyorov

  I have installed Windows 7 64-bit about two week ago. Since then everything was working alright, but yesterday Windows started to load much slower. Main delay comes while Windows logo is glowing -- it used to be around 10-15 seconds and now it's around 2 minutes. As far as I remember, I have only installed Microsoft IntelliMouse driver recently and removed it today. Unfortunately I found out that I have switched off System Restore some time long ago, so can't even test if the problem can be fixed by restoring old version. How can I troubleshoot the problem? Can I somehow find out what's causing the delay? P.S. Please don't suggest to reinstall Windows. I know that will help, but reinstalling all software and settings is a pain and requires a lot of time.

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• Why won't my Windows 7 KMS key work on my Server 2008 KMS server?

  - by Ryan Bolger

  Our Microsoft volume licensing site was recently updated to include our Windows 7 and Server 2008 R2 KMS keys. We have an existing KMS server running on Server 2008 (not R2). In an attempt to be proactive about supporting the new OSes in our environment, I unregistered the old KMS key with slmgr.vbs and tried registering the new key. The registration failed with Error 0xC004F050. The description for that error was "The Software Licensing Service reported that the product key is invalid." What's wrong? I've checked and double checked that for typos against what is listed on the Volume Licensing website.

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• Create Shortened goo.gl URLs in Your Favorite Browser

  - by Asian Angel

  Now that the new goo.gl URL shortening service has been active for a bit you may be wanting to add it to your favorite non Internet Explorer/Firefox browser. See how easy it is to enjoy that goo.gl URL shortening goodness with the “goo.gl with prompt for copying Bookmarklet”. goo.gl with Prompt for Copying Bookmarklet In Action To add the bookmarklet to your browser simply drag it to your “Bookmarks Toolbar” and get ready to start creating those shortened URLs. For our example we chose one of the wonderful malware removal articles here at the site. All that you will need to do is click on the bookmarklet to create your shortened URL. The wonderful thing about this bookmarklet is the small pop-up window that provides an easy way for you to copy the shortened URL. You can see the “Context Menu” for the small window here…definitely nice. Once you have copied your new URL you can close the window by clicking on “OK” or pressing “Enter”. Now you are ready to use your new shortened goo.gl URL wherever you like or need to. Conclusion If you have been wanting to add goo.gl URL shortening power to your favorite browser then this is the perfect bookmarklet to have. Links Add the goo.gl with Prompt for Copying Bookmarklet to Your Favorite Browser Similar Articles Productive Geek Tips See Where Shortened URLs “Link To” in Your Favorite BrowserVerify the Destinations of Shortened URLs the Easy WayA Quick Look at URL Shortening Services & ExtensionsCreate Shortened goo.gl URLs in Google Chrome the Easy WayText-Only URL Quick-Fix for Firefox TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips DVDFab 6 Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 Open Multiple Links At One Go NachoFoto Searches Images in Real-time Office 2010 Product Guides Google Maps Place marks – Pizza, Guns or Strip Clubs Monitor Applications With Kiwi LocPDF is a Visual PDF Search Tool

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• Chrome Java Plugin not working after moving Java installation directory

  - by Florian Peschka

  I recently moved all my Java installations from C:\Program Files\Java to D:\Java, as my C:\ partition only had a few MB of free space left and windows kept on bugging me about it. I also edited every registry entry in HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft that pointed to the old directory to now point to the new one. Then changed the PATH variables and removed the old files, did a restart, and all Java applications work just fine. Yet, Chrome is the only application that seems to have a problem with what I did, as the Java Plugin isn't recognized any more. Are there any registry entires I may have missed? Maybe in the Chrome registry? How can I make this work again?

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• Free Team Foundation Service a Boon for Play Projects

  - by Ken Cox [MVP]

  My ‘jump in and sink or swim’ learning style leads me to create dozens of unbillable ‘play’ projects in Visual Studio 2012.  For example, I’m currently learning to customize the powerful auction/fixed price/classifieds software called AuctionWorx Enterprise.  I make stupid mistakes as I grasp a new API and configure projects. It’s frustrating to go down a rat hole and discover the VS IDE’s Undo doesn’t reach back to a working build from the previous weekend. Enter Visual Studio’s Free Team Foundation Service.  Put your play projects into the free source control and check in (or shelve) a snapshot before embarking on something risky. (I already use Discount ASP.NET’s Team Foundation Server hosting for client projects so there’s zero TFS/VS learning curve for me and first class GUI support.) TFS is free right now for teams of five or fewer. I’m not naive enough to expect ‘free’ to last forever. So, it’ll be interesting to see how much Microsoft intends to charge in 2013 for TFS. In the meantime, why not grab some free source code storage? BTW, it’s weird to realize that Microsoft is backing up my junky little playtime code on three physically-distinct servers every day - and taking incremental backups every hour.

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• Copyrights, Trademarks, Patents - Oh My!

  - by kennedysteve

  Good references when looking to see if someone really legally owns a name, copyright, etc. Copyrights = http://cocatalog.loc.gov/ Trademarks = http://tess2.uspto.gov Patents = http://patft.uspto.gov/ Website Address = http://www.internic.net/whois.html   Copyright Copyright, a form of intellectual property law, protects original works of authorship including literary, dramatic, musical, and artistic works, such as poetry, novels, movies, songs, computer software, and architecture. Copyright does not protect facts, ideas, systems, or methods of operation, although it may protect the way these things are expressed.   Trademark A trademark protects words, phrases, symbols, or designs identifying the source of the goods or services of one party and distinguishing them from those of others.   Patents Set of exclusive rights to an inventor for a limited period of time in exchange for a public disclosure of an invention.   Website Address (aka "Domain name") The core portion of a website name (such as "apple.com" or "msn.com") of a web site, which is uniquely registered to an individual or company (also found to the right of the @ sign in an email address such as "[email protected]".)   Side note #1. LLC Company Names appear to be registered and maintained by state only. If you want to reserve a LLC name nation wide, you may have to register with each state.   Side note #2. The copyright office's FAQ has a question called "How do I protect my sighting of Elvis?". No kidding. Check it out. http://www.

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• Playing Age of Empires II multiplayer in VirtualBox Over wi fi network

  - by Gaurav_Java

  I installed Age of Empires II (Expansion) in VirtualBox (hosting Windows XP). It works great in single player mode. Unfortunately, I tried playing multiplayer via WI-FI which I created on my Ubuntu machine and can't seem to join games. But when I connected to my WI-FI router other able to connect to my system and we can play multiplayer mode This is what I've done so far to try to resolve the issue: I noticed that the IP address of my virtual machine was 10.0.x.x, While the local IP on Ubuntu is 192.168.x.x, which I figured was a Problem. So I changed from NAT networking to bridged networking in VirtualBox . I turned off the Windows firewall in the virtual machine and don't have any ports blocked by Ubuntu, so no software firewall should be at fault. However I'm still unable to play multiplayer games, and suspect that some kind of networking issue lies at the heart of the problem. I'm not sure what else I would need to change, however. So essentially I was wondering if anyone else here has managed to play AOE2, or any similar game, inside VirtualBox from Ubuntu, and if so what you needed to do to make it possible. Or if anyone has suggestions on where else to look to figure out the problem, I'd appreciate that as well. Unfortunately AOE2 itself doesn't provide any debugging information to troubleshoot the inability to connect to network games. Here MY IP result both for Ubuntu and Virtualbox XP I want to play game on multiplayer mode in virtualbox on my system(Own Created on Ubuntu ) wi-fi on which other can connect and play hope someone will answer this

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• Pricing: Meet or Beat?

  - by charles.knapp

  My home dishwasher started making some really interesting noises. I heard radio advertisements from two retailers who promised to meet any competitor's price. Then, I heard another retailer promising that their everyday prices beat their competitors. That got me to thinking about the power of pricing and promotions in the marketing mix (product, price, placement, promotions, and people). What is more powerful to say in a competitive market: your company will meet a similar offer, or your company will beat the others? Will you sell more if you meet or if you beat? I found that the retailer who promised to beat the others really had the best everyday pricing. Even better for me, another retailer had an exclusive promotional sale for long-term customers. Their loyalty promotion beat the best everyday discounter. So, I got the quality and performance I wanted at a tremendous price. So, I have two challenges for marketers. First, where you really have to compete on price as a dominant factor, give people strong reasons to do business with you. If you try to meet other's prices, make the leap to actually beat and not merely meet. Second, upgrade your firm's capabilities where needed. Oracle offers a complete range of great CRM software for loyalty management, marketing promotions, and pricing management that will help you to grow your business.

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• apt-get upgrade gives "403 forbidden" error

  - by 3l4ng

  I'm running Ubuntu 13.04 64b. sudo apt-get update works fine, but when I run sudo apt-get upgrade I get these errors: Err http://archive.ubuntu.com/ubuntu/ raring-updates/main python3.3-minimal amd64 3.3.1-1ubuntu5.2 403 Forbidden Err http://ppa.launchpad.net/otto-kesselgulasch/gimp/ubuntu/ raring/main gimp amd64 2.8.6-0raring1~ppa 403 Forbidden Err http://archive.ubuntu.com/ubuntu/ raring-security/main python3.3-minimal amd64 3.3.1-1ubuntu5.2 403 Forbidden Err http://ppa.launchpad.net/otto-kesselgulasch/gimp/ubuntu/ raring/main gimp-help-en all 1:2.8-0raring16~ppa 403 Forbidden Failed to fetch http://archive.ubuntu.com/ubuntu/pool/main/p/python3.3/python3.3-minimal_3.3.1-1ubuntu5.2_amd64.deb 403 Forbidden Failed to fetch http://ppa.launchpad.net/otto-kesselgulasch/gimp/ubuntu/pool/main/g/gimp/gimp_2.8.6-0raring1~ppa_amd64.deb 403 Forbidden Failed to fetch http://ppa.launchpad.net/otto-kesselgulasch/gimp/ubuntu/pool/main/g/gimp-help/gimp-help-en_2.8-0raring16~ppa_all.deb 403 Forbidden E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing? Running sudo apt-get upgrade --fix-missing installs some updates, but the above errors still persist when I run apt-get upgrade again. The software update app shows the error: https://www.dropbox.com/s/2cr450557hmahzz/software_update.jpg and selecting continue shows: https://www.dropbox.com/s/l7u32sxyfbxxeeg/soft_upd2.jpg (sorry for the links, I don't have enough rep to post images) I am behind a proxy, but apt-get update and web browsing work without issues. I also do not believe a server being down is causing this, as the problem has been there over a month. Any ideas on how to fix this?

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• How to practice object oriented programming?

  - by user1620696

  I've always programmed in procedural languages and currently I'm moving towards object orientation. The main problem I've faced is that I can't see a way to practice object orientation in an effective way. I'll explain my point. When I've learned PHP and C it was pretty easy to practice: it was just matter of choosing something and thinking about an algorithm for that thing. In PHP for example, it was matter os sitting down and thinking: "well, just to practice, let me build one application with an administration area where people can add products". This was pretty easy, it was matter of thinking of an algorithm to register some user, to login the user, and to add the products. Combining these with PHP features, it was a good way to practice. Now, in object orientation we have lots of additional things. It's not just a matter of thinking about an algorithm, but analysing requirements deeper, writing use cases, figuring out class diagrams, properties and methods, setting up dependency injection and lots of things. The main point is that in the way I've been learning object orientation it seems that a good design is crucial, while in procedural languages one vague idea was enough. I'm not saying that in procedural languages we can write good software without design, just that for sake of practicing it is feasible, while in object orientation it seems not feasible to go without a good design, even for practicing. This seems to be a problem, because if each time I'm going to practice I need to figure out tons of requirements, use cases and so on, it seems to become not a good way to become better at object orientation, because this requires me to have one whole idea for an app everytime I'm going to practice. Because of that, what's a good way to practice object orientation?

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• Design pattern for client/server sessions?

  - by nonot1

  Are there any common patterns or general guidance I can learn from for how to design a client/server system where the both the client and server must maintain some kind per-client session state? I've found any number of libraries that can help with some of the plumbing, but it's the overall design I'm wondering about. Open issues in my mind: How to structure the client/server communication so that bidirectional synchronous and asynchronous requests are possible? The server side needs to spawn a couple of per-connected-client session-long helper process. How to manage that? How to manage the mapping from a given client (and any of it's requests) to server state and helper process instances in the face of multiple clients and intermittent network connectivity. Most communication can be simple blocking request/reply, but some will be long running processing tasks that the client will want to keep tabs on. To the extent that it matters, the platform is Linux/C/C++. Not web based. Just an existing thick-client software app being modified to talk to backend servers for some tasks.

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• Mac Grey/White Screen of Death

  - by cust0s

  The other night I updated my iTunes to the latest version (through Software Update) when I came to turn on my computer I was greeted with the dreaded white screen of death. I use an early 2008 iMac 24". I've tried the basic things, unplugging/turning off accessories, trying to boot from the install disk, reseting pram, etc, etc. Still no luck and no change what-so-ever. All I've been able to ascertain that my keyboard still works (by ejecting). I should point out that I did recently replace my Hard drive with a Western Digital Black 500GB (though the computer is well out of warrenty) and I'm a little concerned that the problem could be the screen.

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• Export a single layer as an image in Photoshop

  - by wrburgess

  I have a lot of designers send me layered PSDs of their designs and I need to break out the pieces of the designs to place on web pages. I can do a decent number of things in Photoshop, but I'm hardly efficient with it. My old way of just copying the image that's in a layer and pasting into a new image seems to take forever as I screw around with cropping and such. I've got Photoshop CS5, so I don't need external software to do anything, but I just need to figure out how to take a single layer, that may hold something small like an icon, and export it as a PNG or JPG. I am aware of the script called "Export Layers to Files" but it took about an hour and exported ALL of my layers to a huge number of files. I wasn't looking for a solution that broad. Is there an easy way to do this?

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• Is aspect oriented programming a misnomer?

  - by glenviewjeff

  From everything I have learned about "Aspect Oriented Programming" or "Aspect Oriented Software Development," labeling it as a programming paradigm or methodology appears to be inaccurate. From what I can tell it is not a fundamental technique for programming. To nail down what is meant by "paradigm" and "methodology," please refer to the following definitions from the American Heritage Dictionary. Compare how well or poorly "Object-Oriented Programming" applies to each vs. how well AOP fits. Paradigm: A set of assumptions, concepts, values, and practices that constitutes a way of viewing reality for the community that shares them, especially in an intellectual discipline. Methodology: A body of practices, procedures, and rules used by those who work in a discipline or engage in an inquiry; a set of working methods. "Evidence-based medicine" satisfies the definition of paradigm, but "hysterectomy-based medicine" would be a misnomer because the problem space is too narrow. I am getting the impression that AOP may be misnamed because based on the "oriented-programming" suffix, AOP is alleging to be both a paradigm and a methodology in the same way "Object-Oriented Programming" is. Both of these terms (paradigm and methodology) indicate a fundamental technique, where what I understand about aspects is a technology for solving a narrow problem scope, maybe comparable in magnitude to the static variable feature of Java. If it's true that aspects solve a narrow set of problems, and AOP isn't a misnomer, then why shouldn't all programming techniques be given the "oriented-programming" suffix, such as "inheritance-oriented programming," "dependency-oriented programming," or "scope-oriented programming?"

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• Linux to Solaris @ Morgan Stanley

  - by mgerdts

  I came across this blog entry and the accompanying presentation by Robert Milkoski about his experience switching from Linux to Oracle Solaris 11 for a distributed OpenAFS file serving environment at Morgan Stanley. If you are an IT manager, the presentation will show you: Running Solaris with a support contract can cost less than running Linux (even without a support contract) because of technical advantages of Solaris. IT departments can benefit from hiring computer scientists into Systems Programmer or similar roles.  Their computer science background should be nurtured so that they can continue to deliver value (savings and opportunity) to the business as technology advances. If you are a sysadmin, developer, or somewhere in between, the presentation will show you: A presentation that explains your technical analysis can be very influential. Learning and using the non-default options of an OS can make all the difference as to whether one OS is better suited than another.  For example, see the graphs on slides 3 - 5.  The ZFS default is to not use compression. When trying to convince those that hold the purse strings that your technical direction should be taken, the financial impact can be the part that closes the deal.  See slides 6, 9, and 10.  Sometimes reducing rack space requirements can be the biggest impact because it may stave off or completely eliminate the need for facilities growth. DTrace can be used to shine light on performance problems that may be suspected but not diagnosed.  It is quite likely that these problems have existed in OpenAFS for a decade or more.  DTrace made diagnosis possible. DTrace can be used to create performance analysis tools without modifying the source of software that is under analysis.  See slides 29 - 32. Microstate accounting, visible in the prstat output on slide 37 can be used to quickly draw focus to problem areas that affect CPU saturation.  Note that prstat without -m gives a time-decayed moving average that is not nearly as useful. Instruction level probes (slides 33 - 34) are a super-easy way to identify which part of a function is hot.

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• internet connection problem related to a recurring registry error

  - by mats

  I have a Windows XP desktop system connected to the Internet via ethernet LAN. Initially, none of my browsers were connecting to the Internet, but I was able to update my antivirus software and all of my connection settings were perfect. I was able to solve the problem by running WinSock XP, which apparently fixes connection problems that have been caused by registry issues. My problem now is that every time I shut down the machine, the problem comes back (Internet browsers won't connect). Does anyone have any ideas/suggestions on this? Thanks

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