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• Regular Expressions Cookbook Code Samples

  - by Jan Goyvaerts

  %COOKBOOKFRAME% One of the common criticisms against the first edition was that we didn’t have the regular expressions and code samples available for download. Since our book only has very short code snippets rather than complete programs, we (the authors) did not have these available as separate files either. But for the second edition we’re trying to do better. You can now download the code samples from the 2nd edition of Regular Expressions Cookbook. This HTML file contains all the blocks with regular expressions and source code from the book, along with the titles of the chapters, recipes, and sections that they are found in. If you have purchased the book, you can use this file to easily copy and paste the regular expressions and source code snippets. Even if you purchased the ebook, you may prefer to use this file. The regexes in the ebook are formatted with line breaks and gray dots for spaces to make them easier to read in print. The HTML file does not use such formatting, so you can copy and paste them directly. This means that some very regexes will run beyond the edge of your browser window.

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• Can you add doubleclick macros to exisiting ads

  - by picus

  Setup: A few weeks back I made some very simple html5 "ads" to run on a few of our partner sites. They weren't paid ads as we also manage these sites, however there are a few of them, so I made a modular solution that is hosted on one of our web servers and included on each page via javascript which outputs an iframe. Each search (ad has a search box) or click appends a url param that we track using custom vars in Google Analytics. In essence, the ad is a HTML page served in an iframe via javscript. Problem: We have an opportunity to run these ads on a third party site, I had sent them a brief how-to for inserting them and they came back saying that: The creative code doesn't contain the %u macro. We can’t substitute the default click-through URL without it. I am somewhat familiar with doubleclick from a web developer's POV, i have inserted DC dart tags before and even have implemented the ad tool for publishers. I have not, however, actually ever created an ad for the doubleclick network before. I assume the publisher needs these tags to track clicks and hence charge us. However, they have not responded to me in regards to these questions. Are macros something I can just add to or replace the existing links with, or do I need to completely setup the ad with doubleclcik - a big issue in the short term given we do not have a advertiser's account set up with them. Thanks in advance

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• Google affecting my SERP Rank?

  - by Asad Moeen

  The following are some of my website's details. Home-page: [thebluewaffles].[com] Keywords: Blue Waffles- Rest of the keywords are post/subject specific. Site Description: Health Articles Blog Site Age: 1.5 years A short history: When I started my website, the few things in my mind when posting content were at-least 500 words on each page and writing of all the articles with to the point information. I didn't go really fast with it which is why I only have about 15 articles in 1.5 years. The SEO strategy was more simple. I shared links through Social Marketing websites and some Article Sharing websites after which I could see my website's rankings in top 5 SERP results. I ranked good enough for about 8 months continuously but didn't keep updating content due to which there were some 3 rough months when no content was posted due to some personal work. The SERPS dropped to 2nd page in April and almost started disappearing in May. I asked a lot of people about it and most came up with the reason of "no updates to site" so I started updating my site again since the day, November has almost started and I see no signs of my website's ranking. Another important point is that when I post a new article, and do a title search in Google, I see it ranks good enough for the first 10 hours and then disappears. What could be wrong here?

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• IASA South East Florida Chapter &ndash; November 2012 Meeting

  - by Rainer Habermann

  After a short introduction by Rainer Habermann and announcements for the chapter and promoting the upcoming IASA IFC Certification Class in January 2013 at Citrix, the audience was exited to welcome Jesus Rodriquez for the main presentation about “Mobilizing the Enterprise”.       Jesus is a co-founder and CEO of both Tellago Studios and Tellago, two fast growing start-ups with a unique vision around software technology. Jesus spends his days working on the technology and strategic vision of both companies. Under his leadership, Tellago and Tellago Studios have been recognized as an innovator in the areas of enterprise software and solutions achieving important awards like the Inc500, American Business Awards’ American and International Business Awards. A software scientist by background, Jesus is an internationally recognized speaker and author with contributions that include hundreds of articles and sessions at industry conferences. Jesus serves as an advisor to several software companies such as Microsoft and Oracle, and is the only person who holds both the Microsoft MVP and Oracle ACE awards. Jesus introduced the architecture of the Enterprise Mobile Backend as a service, integrating enterprise mobile applications with corporate line of business systems and providing robust backend capabilities represent some of the major challenges in today’s enterprise mobility solutions. The mobile consumer space has seen the emergence of backend as a service technologies as one of the main mechanisms for enabling backend capabilities in mobile applications. This session introduced the concept of mobile backend as a service (MBaaS) as the fundamental enabler of the next generation enterprise mobile applications. The session further explored the fundamental components and services of a mBaaS platform that makes it an ideal option for enabling backend capabilities in enterprise mobile applications. Using real world examples. Jesus demonstrated how mBaaS represents an agile and extremely simple model to integrate mobile applications with corporate systems. Thank you very much to Jesus Rodriquez for an outstanding presentation, Peak 10 Data Centers for hosting our meeting, and to TEK Systems for Snacks. Pictures taken by Ted Harwood.   Rainer Habermann President IASA SE Florida Chapter

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• There is No Scrum without Agile

  - by John K. Hines

  It's been interesting for me to dive a little deeper into Scrum after realizing how fragile its adoption can be.  I've been particularly impressed with James Shore's essay "Kaizen and Kaikaku" and the Net Objectives post "There are Better Alternatives to Scrum" by Alan Shalloway.  The bottom line: You can't execute Scrum well without being Agile. Personally, I'm the rare developer who has an interest in project management.  I think the methodology to deliver software is interesting, and that there are many roles whose job exists to make software development easier.  As a project lead I've seen Scrum deliver for disciplined, highly motivated teams with solid engineering practices.  It definitely made my job an order of magnitude easier.  As a developer I've experienced huge rewards from having a well-defined pipeline of tasks that were consistently delivered with high quality in short iterations.  In both of these cases Scrum was an addition to a fundamentally solid process and a huge benefit to the team. The question I'm now facing is how Scrum fits into organizations withot solid engineering practices.  The trend that concerns me is one of Scrum being mandated as the single development process across teams where it may not apply.  And we have to realize that Scurm itself isn't even a development process.  This is what worries me the most - the assumption that Scrum on its own increases developer efficiency when it is essentially an exercise in project management. Jim's essay quotes Tobias Mayer writing, "Scrum is a framework for surfacing organizational dysfunction."  I'm unsure whether a Vice President of Software Development wants to hear that, reality nonwithstanding.  Our Scrum adoption has surfaced a great deal of dysfunction, but I feel the original assumption was that we would experience increased efficiency.  It's starting to feel like a blended approach - Agile/XP techniques for developers, Scrum for project managers - may be a better fit.  Or at least, a better way of framing the conversation. The blended approach. Technorati tags: Agile Scrum

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• Is it common for a development position to be extremely mundane and not challenging at all? [closed]

  - by Kim Jong Woo

  Hi guys so I am working at this company as a web developer but after 1 week of working here, I realize the stuff I am doing seem to be very easy stuff compared to what my peers who have been around for longer are doing. I am way ahead of my schedule and finish my projects early but it's because the work is not at all hard or problem solving involved. So I am puzzled why I would be thanked over doing such menial tasks. Is this normal? This is driving me nuts, I ask to be given more work and I do get it and still finish it quickly and accurately. Now I am having this paranoia that they are just conspiring to use me for a short period of time and terminate me. Am I going too far with this? I keep losing sleep over this. On days when I have a full load of work to complete, this uneasiness goes away but so far I feel like I am not being allowed to pursue what I thought I would do like solving and designing solutions. A lot of it doesn't require any thinking, just cleaning up other people's code and closing bug tickets.

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• Intel graphic chipset and NVIDIA Geforce GTX560

  - by antoine

  I have an NVIDIA Geforce GTX560 with two video projectors and I would like to use the onboard Intel Graphic Chipset to plug an additional monitor. I saw the question : How can I use both Intel onboard and Nvidia graphics at the same time? but the answer is so short that I was not convinced. My motherboard (GIGABYTE GA-H61M-D2P-B3 (rev. 1.0)) equipped with Intel H61 Chipset allow shared memory between onboard and PCIe cards. And Windows 7 allow me to use the three outputs thanks to Intel's driver. I'm able to use the onboard graphic card but without graphical interface for now. I think i need intel driver for that. But I would like to know if I can setup my displays in xorg.conf with something like : Section "Device" Identifier "Device0" Driver "intel" EndSection Section "Device" Identifier "Device1" Driver "nvidia" EndSection Section "Device" Identifier "Device2" Driver "nvidia" EndSection Does anyone have successfully setup something like that ? Or should I burn my head experimenting it by myself ? Or is there any good reasons to discouraged me to try ? Thanks for your help. Antoine PS : i'm using Ubuntu 10.10 for now, but I could switch to another version. PS2 : i also read this : Use 3 monitors w/built-in intel adapter + two old nvidia PCI cards on 10.10? which doesn't tell me more about the possibilities to use Intel Graphic and Nvidia at the same time EDIT : according to that : Can not get Dual Monitors to work on Different GPUs, I should be able to run two Xserver one on Intel the other on Nvidia. I will try and post the result here.

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• ArchBeat Link-o-Rama for 11/29/2011

  - by Bob Rhubart

  Webcast: Introducing Oracle WebLogic Server 12c: Developer Deep Dive December 1, 2011 11am - 12pm PT / 2pm - 3pm ET. Learn how Oracle WebLogic Server 12c enables rapid development of modern, lightweight Java EE 6 applications. Discover how you can leverage the latest development technologies, tools and standards when deploying to Oracle WebLogic Server across both conventional and Cloud environments. Web Services in BI Publisher 11g | Robin Moffatt BI Publisher 11g comes with a shiny set of new Web Services, superseding those that were in 10g. Robin Moffatt's article discusses some of the uses, and ways to implement them. Stanford expands free, online information technology course offerings | ZDNet Joe McKendrick reports on new Stanford online courses set to start in January 2012. Courses include Software as a Service and Computer Science 101. The federal government's secret 1966 cloud computing plan | ZDNet "Even as far back as 45 years ago, the US federal government struggled to consolidate and become more service-oriented across its agency silos," says McKendrick. SOA Made Simple; Architects in AZ; Introduction to Cloud Migration This week on the Oracle Technology Network Architect Home Page. New release of S-ASH v.2.3 | Marcin Przepiorowski A short post from Marcin Przepiorowski on the new version of Oracle Simulate ASH. Architecture all day. Oracle Technology Network Architect Day - Phoenix, AZ Spend the day with your peers learning from Oracle experts on Cloud Computing, Engineered Systems, and more. Wednesday, December 14, 2011. 8:30am to 5:00pm. Registration is free, but seating is limited.

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• What You Said: How You Find New Books

  - by Jason Fitzpatrick

  Earlier this week we asked you to share your tips and tricks for finding fresh books to enjoy. Now we’re back with tips ranging from the old school to the digital. SJ highlights several of the most popular web-based tools for finding new books: Goodreads.com is quick and easy. Yournextread.com is fun and helps a lot. But I gotta be honest, Amazon’s suggestions are probably the most useful to me. TheFu suggests checking out award-winning lists and one rather quirky way to pick a good Sci-Fi book: For scifi, see Hugo winning books. Life is too short to read bad books. Sometimes that leads to an author with an entire series of books to enjoy. I really enjoy some of the scifi from the 40s and 50s. Wells stuff is always timeless too (and free). I’m less happy with Nebula winners–-different type of writers and not my personal taste. Secure Yourself by Using Two-Step Verification on These 16 Web Services How to Fix a Stuck Pixel on an LCD Monitor How to Factory Reset Your Android Phone or Tablet When It Won’t Boot

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• What&rsquo;s in your wallet, er&hellip;Inbox?

  - by johndoucette

  Since my first UUCP operation in UNIX to deliver and receive an email, I have always been challenged to find the ultimate email organizer. About a year ago, I switched to a very simple process of managing email and have found the ultimate in organization. On the craziest of days with 250+ emails, I keep my inbox empty. Here is how I do it; First, start with the following folders in your mailbox; Inbox    Archive    FollowUp    Hold Of course, all inbound emails will start in the Inbox. As you work throughout the day, follow these steps to keep your inbox empty; Read the email. Are you responsible for any action? If you are and can do it immediately, then do it. If you need to do it later, move the email to the “FollowUp” folder If you are not responsible for any action, move it to the archive folder. Use Outlook’s search to find them when you need them. If you will need to reference the email later in the week or for a short term (week or two), then move the email to the “Hold” folder As your day progresses, frequently review the FollowUp folder and accomplish the task *Notes: If I am waiting for someone to do something for me, I keep it in the FollowUp folder. As I review the folder, I am constantly reminded that there is something I am waiting on – and can send a simple reminder by forwarding the original email. I sometimes send myself a “todo” email and park it in the FollowUp folder I like to know how many emails are in the folders so I set the “Show total number of items” property on the folder to show the amount of emails.

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• Windows Azure Event

  - by Blog Author

  Get cloud ready with Windows Azure The cloud is everywhere and here at Microsoft we’re flying high with our cloud computing release, Windows Azure. As most of you saw at the Professional Developers Conference, the reaction to Windows Azure has been nothing short of “wow” – and based on your feedback, we’ve organized this special, all-day Windows Azure Firestarter event to help you take full advantage of the cloud. Maybe you've already watched a webcast, attended a recent MSDN Event on the topic, or done your own digging on Azure. Well, here's your chance to go even deeper. This one-of-a-kind event will focus on helping developers get ‘cloud ready’ with concrete details and hands-on tactics. We’ll start by revealing Microsoft’s strategic vision for the cloud, and then offer an end-to-end view of the Windows Azure platform from a developer’s perspective. We’ll also talk about migrating your data and existing applications (regardless of platform) onto the cloud. We’ll finish up with an open panel and lots of time to ask questions. Following this event, please join us for an engaging conversation about any and all Cloud Computing topics. This FREE event is hosted by Northwest Cloud, the cloud agnostic community group, and sponsored by Microsoft. http://www.nwcloud.org/redmond/2010-04-06

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• The best way to have a pointer to several methods - critique requested

  - by user827992

  I'm starting with a short introduction of what i know from the C language: a pointer is a type that stores an adress or a NULL the * operator reads the left value of the variable on its right and use this value as address and reads the value of the variable at that address the & operator generate a pointer to the variable on its right so i was thinking that in C++ the pointers can work this way too, but i was wrong, to generate a pointer to a static method i have to do this: #include <iostream> class Foo{ public: static void dummy(void){ std::cout << "I'm dummy" << std::endl; }; }; int main(){ void (*p)(); p = Foo::dummy; // step 1 p(); p = &(Foo::dummy); // step 2 p(); p = Foo; // step 3 p->dummy(); return(0); } now i have several questions: why step 1 works why step 2 works too, looks like a "pointer to pointer" for p to me, very different from step 1 why step 3 is the only one that doesn't work and is the only one that makes some sort of sense to me, honestly how can i write an array of pointers or a pointer to pointers structure to store methods ( static or non-static from real objects ) what is the best syntax and coding style for generating a pointer to a method?

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• Choosing a (browser) game environment [closed]

  - by Iain

  I apologise in advance if this post is something you've heard a million times already or seems like a trolling attempt. I just want some advice and I'm coming up short with my own Google searches. Basically, I would like to start learning some game development in my own free time (nothing serious, just purely as a hobbyist for fun). I'd like to know what the communities opinions are on the old HTML5/Javascript v Flash argument but purely from a game development perspective. I know people say Flash is dying because of issues like SEO, memory/bandwidth usage and Apple dropping it on tablet and mobile devices, so is it worth me dedicating my free time to learning to use Flash/AS3 for game development or should I focus on HTML5/Javascript? At the moment, I'm not sure HTML5/Javascript is mature enough or has the support tools that Flash does (framework, IDE, etc) and there seems to be a lot more resources online for beginner Flash/AS3 programming. When I'm reading tutorials online for Flash/AS3 I always have it in the back of my head that I'm wasting my time because it won't be around in a few years and I should be investing that time learning HTML5/Javascript. Thoughts? Disclaimer: I'm not trying to spark a flame war or troll anyone - I believe in the right tools for the job and I don't want to waste my time learning something that won't be around in a few years.

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• How to explain a layperson why a developer should not be interrupted while neck-deep in coding?

  - by András Szepesházi

  If you just consider the second part of my question, "Why a developer should not be interrupted while neck-deep in coding", that has been discussed a number of times by smart people. Heck, even the co-founder of SO, Joel Spolsky, wrote a blog post about "getting in the zone" and "being knocked out of the zone" and why it takes an average of 15 minutes to achieve productivity when participating in complex, software development related tasks. So I think the why has been established. What I'm interested in is how to explain all that to somebody who doesn't know beans about Beans (khmm I mean software development). How to tell the wife, or the funny guy from accounting at the workplace, or the long time friend who pings you on Skype every 30 minutes with a "Wazzzzzzup?!", that all the interruptions have a much deeper impact on your work than the obvious 30 seconds they took from your time. Obviously you can't explain it by sentences like "I have to juggle a lot of variable names in my short term memory" unless you want to be the target of blank stares or friendly abuse. I'd like to be able to explain all that to non-developers in a way that will make them clearly understand - without being offensive, elitist or too technical. EDIT: Thanks to everyone for their great insights. I've accepted EpsilonVector's answer as his analogy was the closest one to my original needs. The "falling asleep" explanation is neither offensive nor technical, almost anyone can relate to it, and the consequences of getting disturbed while falling asleep or while being in the zone are very similar: you experience frustration and you "lose" 15-20 minutes of time.

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• Is there such a thing as "closure" with software work?

  - by Bobby Tables

  I burned out last year (after a decade of fulltime programming jobs) and am on a sabbatical now. With all the self-examination I've started to figure out some of the root causes of my burnout, and one of the major ones is basically this: there was never any real closure in any of the work I've ever done. It was always a case of getting into an open-ended support/maintenance grind and going stale. When I first entered the industry, I had this image of programming work being very project-based. And I expected projects to have a start, beginning, and END. And then you move on and start on something totally new and fresh. Basically I never expected that a lot (most) of software work involves supporting and maintaining the same code base for open-ended long periods of time - years and even decades. That, combined with generally having itchy feet makes me think that burnout is inevitable for me, after 2-3 years, in ANY fulltime software job. All this sounds like I probably should have been a contractor instead of a fulltimer. But when I discuss this with people, a lot of them say that even THEN you can't really escape having to go back and maintain/support the stuff you worked on, over and over (eg. Coming back on support contracts, for example). The nature of software work is simply like that. There is no project closure, unlike in many other engineering fields. So my question is - Is there ANY programming work out there which is based on short to mid term projects/stints and then moving on cleanly? And is there any particular industry domain or specialization where this kind of project work is typical?

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• Today's Links (6/28/2011)

  - by Bob Rhubart

  Connecting People, Processes, and Content: An Online Event | Brian Dirking Dirking shares information on an Oracle Online Forum coming up on July 19. Social Relationships don't count until they count | Steve Jones "It's actually the interactions that matter to back up the social experience rather than the existence of a social link," says Jones. ORACLENERD: KScope 11: Cary Millsap Commenting on Cary Millsap's KScope presentation on Agile, Oracle ACE Chet Justice says, "I fight with methodology on a daily basis, mostly resulting in me hitting my head against the closest wall." The Sage Kings of Antiquity | Richard Veryard "Given that the empirical evidence for enterprise architecture is fairly weak, anecdotal and inconclusive, we are still more dependent than we might like on the authority of experts," says Veryard, "whether this be semi-anonymous committees (such as TOGAF) or famous consultants (such as Zachman)." Oracle Business Intelligence Blog: New BI Mobile Demos "These are short videos that showcase some of the capabilities in our mobile app," says Abhinav Agarwal. "One focuses on the Oracle BI platform, while the other showcases what is possible with the mobile app accessing Oracle Business Intelligence Applications, like Financial Analytics." MySQL HA Events in the UK, Germany & France | Oracle's MySQL Blog Oracle is running MySQL High Availability breakfast seminars in London (June 29), Düsseldorf (July 13) and Paris (September 7). "During these free seminars, we will review the various options and technologies at your disposal to implement highly available and highly scalable MySQL infrastructures, as well as best practices in terms of architectures," says Bertrand Matthelié. VENNSTER BLOG: User Experience in Fusion apps "When I heard about the Fusion Applications User Experience efforts, I was skeptical," says Oracle ACE Director Lonneke Dikmans of Vennster "My view of Oracle and User Experience has changed drastically today." Power Your Cloud with Oracle Fusion Middleware Running in over 50 cities across the globe, this event is aimed at Architects, IT Managers, and technical leaders like you who are using Fusion Middleware or trying to learn more about middleware in the context of Cloud computing.

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• Create MSDB Folders Through Code

  You can create package folders through SSMS, but you may also wish to do this as part of a deployment process or installation. In this case you will want programmatic method for managing folders, so how can this be done? The short answer is, go and look at the table msdb.dbo. sysdtspackagefolders90. This where folder information is stored, using a simple parent and child hierarchy format. To add new folder directly we just insert into the table - INSERT INTO dbo.sysdtspackagefolders90 ( folderid ,parentfolderid ,foldername) VALUES ( NEWID() -- New GUID for our new folder ,<<Parent Folder GUID>> -- Lookup the parent folder GUID if a child or another folder, or use the root GUID 00000000-0000-0000-0000-000000000000 ,<<Folder Name>>) -- New folder name There are also some stored procedures - sp_dts_addfolder sp_dts_deletefolder sp_dts_getfolder sp_dts_listfolders sp_dts_renamefolder To add a new folder to the root we could call the sp_dts_addfolder to stored procedure - EXEC msdb.dbo.sp_dts_addfolder @parentfolderid = '00000000-0000-0000-0000-000000000000' -- Root GUID ,@name = 'New Folder Name The stored procedures wrap very simple SQL statements, but provide a level of security, as they check the role membership of the user, and do not require permissions to perform direct table modifications.

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• ArchBeat Link-o-Rama for November 13, 2012

  - by Bob Rhubart

  This week on the OTN Solution Architect Homepage Make time to check out this week's features on the OTN Solution Architect Homepage, including: SOA Practitioner Guide: Identifying and Discovering Services Setting Up, Configuring, and Using an Oracle WebLogic Server Cluster OTN ArchBeat Podcast: Are You Future Proof (Conclusion) Keynote: New Paradigms for Application Architecture: From Applications to IT Services I this keynote address from the SOA, Cloud, and Service Technology Symposium, Anne Thomas Manes highlights the importance of adapting to the current trend marked by the convergence of mobile, social and cloud, moving away from app-centric design to service-based solutions. New Solaris Cluster! | Jeff Victor "Oracle Solaris Cluster 4.1 offers both High Availability (HA) and also Scalable Services capabilities," explains Jeff Victor. "HA delivers automatic restart of software on the same cluster node and/or automatic failover from a failed node to a working cluster node. Software and support is available for both x86 and SPARC systems." You'll find download links and other resources in Jeff's short post. ADF BC View Accessor To Centralize Business Logic Processing | Andrejus Baranovskis Oracle ACE Director Andrejus Baranovskis illustrates one way to implement a use case that requires a comparison between the current row status and the data returned by another query (no master-detail relationship). Thought for the Day "The danger from computers is not that they will eventually get as smart as men, but that we will meanwhile agree to meet them halfway." — Bernard Avishai Source: SoftwareQuotes.com

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• SharePoint 2010 in the cloud a.k.a. SharePoint Online

  - by Sahil Malik

  Ad:: SharePoint 2007 Training in .NET 3.5 technologies (more information). There are 3 ways to run SharePoint On premises, you buy the servers, and you run the servers. Hosted servers, where you don’t run the servers, but you let a hosting company run dedicated servers. Multi-tenant, like SharePoint online – this is what I am talking about in this blog post. Also known as SaaS (Software as a Service). The advantages of a cloud solution are undeniable. Availability, (SharePoint line offers a 99.9% uptime SLA) Reliability. Cost. Due to economies of scale, and no need to hire specialized dedicated staff. Scalability. Security. Flexibility – grow or shrink as you need to. If you are seriously considering SharePoint 2010 in the cloud, there are some things you need to know about SharePoint online. What will work - OOTB Customization, collaboration features etc. will work SharePoint Designer 2010 is supported, so no code workflows will work Visual Studio sandbox solutions, client object model will work. What won’t work - SharePoint 2010 online cloud environment supports only sandbox solutions. BCS, business connectivity services is not supported in SharePoint online. What you can do however is to host your services in Azure, and call them using Silverlight. Custom timer jobs will not work. Long story short, get used to Sandbox solutions – and the new way of programming. Sandbox solutions are pretty damn good. Most of the complaints I have heard around sandbox solutions being too restrictive, are uninformed mechanisms of doing things mired in the ways of 2002. .. or you could just live in 2002 too. Comment on the article ....

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• RPi and Java Embedded GPIO: Hooking Up Your Wires for Java

  - by hinkmond

  So, you bought your blue jumper wires, your LEDs, your resistors, your breadboard, and your fill of Fry's for the day. How do you hook this cool stuff up to write Java code to blink them LEDs? I'll step you through it. First look at that pinout diagram of the GPIO header that's on your RPi. Find the pins in the corner of your RPi board and make sure to orient it the right way. The upper left corner pin should have the characters "P1" next to it on the board. That pin next to "P1" is your Pin #1 (in the diagram). Then, you can start counting left, right, next row, left, right, next row, left, right, and so on: Pins # 1, 2, next row, 3, 4, next row, 5, 6, and so on. Take one blue jumper wire and connect to Pin # 3 (GPIO0). Connect the other end to a resistor and then the other end of the resistor into the breadboard. Each row of grouped-together holes on a breadboard are connected, so plug in the short-end of a common cathode LED (long-end of a common anode LED) into a hole that is in the same grouping as where the resistor is plugged in. Then, connect the other end of the LED back to Pin # 6 (GND) on the RPi GPIO header. Now you have your first LED connected ready for you to write some Java code to turn it on and off. (As, extra credit you can connect 7 other LEDs the same way to with one lead to Pins # 5, 7, 11, 13, 15, 19 & 21). Whew! That wasn't so bad, was it? Next blog post on this thread will have some Java source code for you to try... Hinkmond

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• PHP safe_mode is a pain, looking for advice (Ubuntu 12.04 server, public webserver)

  - by user73279

  Maybe askUbuntu isn't the right forum or I haven't provided the right search query but I haven't seen anything in my searching of askUbuntu on PHP safe_mode. I get lots of Windows Safe Mode and Ubuntu Safe Mode results but not PHP safe_mode. So I keep running into one issue after another regarding PHP safe_mode. (I write a lot of my own PHP code for various site maintenance tools and such.) I know safe_mode is going away in the next version of PHP but I still see a fair amount of advice recommending that you leave it enabled. I've recently consolidated from 3 servers down to 1 and at least one of those old servers had safe_mode disabled without any issues. (The lack of issues may have simply been a matter of good luck.) None of the previous 3 gave me this much trouble so I'm guessing so additional php.ini/PHP safe_mode setting was turned on for the new server. I primarily run WordPress for my websites with a few MediaWiki sites sprinkled in. And I am currently running into an issue using WordPress's auto update feature as it doesn't seem to be able to use fopen. WordPress is not relaying the actual error message to me but since I was just able to update the plugins I'm using this is a safe_mode problem. I've had a lot of safe_mode issues since consolidating to this new server. Long story short, the advice I'd seen to use safe_mode was all at least 2 years old. Do I really need it? If I disable PHP safe_mode are there a good set of security measures I should implement - i.e. chmod 640 /var/www/..., add this to your .htaccess, etc - to protect my server/sites? Thanks

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• How to write a blog for SEO purpose

  - by Mathieu Imbert

  I have a photo sharing website, which provides very little textual content. Users can add tags to photos and a description, but it creates a lot of duplicate content, because most of the descriptions will be 'wow', 'lol', ... I don't think I should rely on users to build my SEO. I think it would be a great idea to write a blog, and use it to describe the best photos, start contests, explain themes, in short: create original content that search engines will love. Our website's main URL is like www.domain.com, and our new blog is hosted on blog.domain.com. From a SEO perspective, is it a good idea to keep the blog separate from the main site? This has the advantage to leave the original site unchanged, but will it add any page rank to the www.domain.com? If the blog ranks well it will obviously pass some page rank to the original through links. What do you think is the best option from a SEO perspective? Include the blog in www.domain.com? Or leave it in blog.domain.com?

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• Internet is far slower in Ubuntu than Windows 7 on dual-booted machine

  - by Tim

  Edit: I'll leave the original post as-is, but after further investigation, it appears that the problem is something to do with my wi-fi card. Speeds are normal when I connect via cable. Edit 2: Problem was solved. It was something to do with the wireless card drivers. I normally use Windows 7 on my laptop and have internet speeds that are normally about 15-20 Mb/s. I have recently dual-booted with Ubuntu 12.10, and have noticed that internet speeds are drastically slower in Ubuntu. When tested, speeds range from 0.2-2 Mb/s, although occasionally being significantly faster than that or even stopping completely for short periods of time. I've also noticed that when first booting into Ubuntu, speeds start fairly fast, and drop to incredibly slow with a few seconds to a few minutes. There's still some possibility that the issue may be with my ISP, as things seem slower than usual even in Windows, but I suspect that it is related to Ubuntu, as things are far slower in Ubuntu than in Windows. I'm wondering, what could be the cause of this? Potentially relevant information: -I've dual booted before on this machine with earlier versions of Ubuntu (different ISP at the time) with no problem. ISP: Rogers (Major Canadian ISP) System info (Gateway NV53a Laptop): Operating System MS Windows 7 Home Premium 64-bit CPU AMD Phenom II N970 Caspian 45nm Technology RAM 6.00 GB Dual-Channel DDR3 @ 664MHz (9-9-9-24) Motherboard Gateway SJV51_DN (Socket S1G4) Graphics Generic PnP Monitor (1366x768@60Hz) ATI Mobility Radeon HD 4250 (Acer Incorporated [ALI]) Hard Drives 733GB TOSHIBA TOSHIBA MK7559GSXP ATA Device (SATA) Networking info: Connected through Wi-Fi Atheros AR5B97 Wireless Network A

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• Upcoming: Oracle Advanced Benefits Advisor Webcasts Announced

  - by user793553

  Oracle support is pleased to announce a new webcast covering the Open Enrollment functionality in Oracle Advanced Benefits.  The webcast is repeated on three different dates, in order to make attendance easier, whatever timezone you operate in. These one-hour sessions are recommended for technical and functional users who will be having an Open Enrollment cycle in the next 12 months.  The session will review the best proactive practices recommended by Oracle Support regardless of when your Open Enrollment takes place.  It will review planning, patching, data corruption and critical checklists. TOPICS WILL INCLUDE: Planning Ahead for Open Enrollment testing Required Patches Test performance Avoid major patching/updates Data corruption issues A short, live demonstration (only if applicable) and question and answer period will be included.  Below is the schedule for the webcasts.  The same can be found in the MyOracleSupport Document Advisor Webcast Current Schedule Doc ID 740966.1 Please follow the links to register for your chosen session. Webcast Topic and Description Registration Details Date and Time Best Benefits Practices for Open Enrollment Session 3   Doc ID 1489318.1 October 17, 2012 at 16:00 US EST Best Benefits Practices for Open Enrollment Session 4   Doc ID 1489319.1 October 31, 2012 at 16:00 US EST Product Enhancements in R12.1.3 RUP 5 Session 2   Doc ID 1489320.1 November 07, 2012 at 16:00 US EST

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• SQLIO Writes

  - by Grant Fritchey

  SQLIO is a fantastic utility for testing the abilities of the disks in your system. It has a very unfortunate name though, since it's not really a SQL Server testing utility at all. It really is a disk utility. They ought to call it DiskIO because they'd get more people using I think. Anyway, branding is not the point of this blog post. Writes are the point of this blog post. SQLIO works by slamming your disk. It performs as mean reads as it can or it performs as many writes as it can depending on how you've configured your tests. There are much smarter people than me who will get into all the various types of tests you should run. I'd suggest reading a bit of what Jonathan Kehayias (blog|twitter) has to say or wade into Denny Cherry's (blog|twitter) work. They're going to do a better job than I can describing all the benefits and mechanisms around using this excellent piece of software. My concerns are very focused. I needed to set up a series of tests to see how well our product SQL Storage Compress worked. I wanted to know the effects it would have on a system, the disk for sure, but also memory and CPU. How to stress the system? SQLIO of course. But when I set it up and ran it, following the documentation that comes with it, I was seeing better than 99% compression on the files. Don't get me wrong. Our product is magnificent, wonderful, all things great and beautiful, gets you coffee in the morning and is made mostly from bacon. But 99% compression. No, it's not that good. So what's up? Well, it's the configuration. The default mechanism is to load up a file, something large that will overwhelm your disk cache. You're instructed to load the file with a character 0x0. I never got a computer science degree. I went to film school. Because of this, I didn't memorize ASCII tables so when I saw this, I thought it was zero's or something. Nope. It's NULL. That's right, you're making a very large file, but you're filling it with NULL values. That's actually ok when all you're testing is the disk sub-system. But, when you want to test a compression and decompression, that can be an issue. I got around this fairly quickly. Instead of generating a file filled with NULL values, I just copied a database file for my tests. And to test it with SQL Storage Compress, I used a database file that had already been run through compression (about 40% compression on that file if you're interested). Now the reads were taken care of. I am seeing very realistic performance from decompressing the information for reads through SQLIO. But what about writes? Well, the issue is, what does SQLIO write? I don't have access to the code. But I do have access to the results. I did two different tests, just to be sure of what I was seeing. First test, use the .DAT file as described in the documentation. I opened the .DAT file after I was done with SQLIO, using WordPad. Guess what? It's a giant file full of air. SQLIO writes NULL values. What does that do to compression? I did the test again on a copy of an uncompressed database file. Then I ran the original and the SQLIO modified copy through ZIP to see what happened. I got better than 99% compression out of the SQLIO modified file (original file of 624,896kb went to 275,871kb compressed, after SQLIO it went to 608kb compressed). So, what does SQLIO write? It writes air. If you're trying to test it with compression or maybe some other type of file storage mechanism like dedupe, you need to know this because your tests really won't be valid. Should I find some other mechanism for testing? Yeah, if all I'm interested in is establishing performance to my own satisfaction, yes. But, I want to be able to compare my results with other people's results and we all need to be using the same tool in order for that to happen. SQLIO is the common mechanism that most people I know use to establish disk performance behavior. It'd be better if we could get SQLIO to do writes in some other fashion. Oh, and before I go, I get to brag a bit. Measuring IOPS, SQL Storage Compress outperforms my disk alone by about 30%.

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