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  • Why is purchasing Microsoft licences such a daunting task? [closed]

    - by John Nevermore
    I've spent 2 frustrating days jumping through hoops and browsing through different local e-shops for VS (Visual Studio) 2010 Pro. And WHS (Windows Home Server) FPP 2011 licenses. I found jack .. - or to be more precise, the closest I found in my country was WHS OEM 2011 licenses after multiple emails sent to individuals found on Microsoft partners page. Question being, why is it so difficult to get your hands on Microsoft licenses as an individual? Sure, you can get the latest end user operating systems from most shops, but when it comes to development tools or server software you are left dry. And companies that do sell licenses most of the time don't even put up pricing or a self service environment for buying the licenses, you need to have an hawk's eye for that shiny little Microsoft partner logo and spam through bunch of emails not knowing, if you can count on them to get the license or not. Sure, i could whip out my credit card and buy the VS 2010 license on the online Microsoft Shop. Well whippideegoddamndoo, they sell that, but they don't sell WHS 11 licenses. Why does a company make it so hard to buy their products? Let's not even talk about the licensing itself being a pain.

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  • How do I reinitialise a failed RAID 5 drive using terminal on Ubuntu Server

    - by Stephen
    I've currently put together a new system and part of that has been creating a software RAID 5 using 'mdadm' in Ubuntu Server. I successfully got to the point where I create the array using: sudo mdadm --create --verbose /dev/md0 --level=5 --raid-devices=4 /dev/sda1 /dev/sdb1 /dev/sdc1 /dev/sdd1 I left it to do its thing overnight then used the following command to check on it: watch cat /proc/mdstat To which the following was returned: Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] md0 : active raid5 sdd1[4](S) sdc1[2] sdb1[1] sda1[0](F) 5860535808 blocks super 1.2 level 5, 512k chunk, algorithm 2 [4/2] [_UU_] unused devices: <none> It appears that one has failed (and I'm not too savvy with why another is a spare). So, just to be sure that something else isn't amiss I wanted to try and re-engage the failed drive. Can someone explain how I can do that and what I should do with the spare (if anything). And also how do I know when synchronisation is complete? The tutorial I used to get this far is located here: http://sonniesedge.co.uk/2009/06/13/software-raid-5-on-ubuntu-904/ Many thanks! p.s. Here is some extra information that may help: sudo mdadm --detail /dev/md0 /dev/md0: Version : 1.2 Creation Time : Mon Jun 18 21:14:21 2012 Raid Level : raid5 Array Size : 5860535808 (5589.04 GiB 6001.19 GB) Used Dev Size : 1953511936 (1863.01 GiB 2000.40 GB) Raid Devices : 4 Total Devices : 4 Persistence : Superblock is persistent Update Time : Mon Jun 18 21:50:26 2012 State : clean, FAILED Active Devices : 2 Working Devices : 3 Failed Devices : 1 Spare Devices : 1 Layout : left-symmetric Chunk Size : 512K Name : myraidbox:0 (local to host myraidbox) UUID : a269ee94:a161600c:fb1665e7:bd2f27b3 Events : 13 Number Major Minor RaidDevice State 0 0 0 0 removed 1 8 17 1 active sync /dev/sdb1 2 8 33 2 active sync /dev/sdc1 3 0 0 3 removed 0 8 1 - faulty spare /dev/sda1 4 8 49 - spare /dev/sdd1

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  • Many-to-many relationships in pharmacology

    - by John Paul Cook
    When I was in my pharmacology class this morning, I realized that the instructor was presenting a classic relational database management system problem: the many-to-many relationship. He said that all of us in nursing school must know our drugs backwards and forwards. I know how to model that! There are so many things in both healthcare and higher education that could benefit from an appropriate application of technology. As a student, I'd like to be able to start with a drug, a disease, a name of...(read more)

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  • Alternative way of developing for ASP.NET to WebForms - Any problems with this?

    - by John
    So I have been developing in ASP.NET WebForms for some time now but often get annoyed with all the overhead (like ViewState and all the JavaScript it generates), and the way WebForms takes over a lot of the HTML generation. Sometimes I just want full control over the markup and produce efficient HTML of my own so I have been experimenting with what I like to call HtmlForms. Essentially this is using ASP.NET WebForms but without the form runat="server" tag. Without this tag, ASP.NET does not seem to add anything to the page at all. From some basic tests it seems that it runs well and you still have the ability to use code-behind pages, and many ASP.NET controls such as repeaters. Of course without the form runat="server" many controls won't work. A post at Enterprise Software Development lists the controls that do require the tag. From that list you will see that all of the form elements like TextBoxes, DropDownLists, RadioButtons, etc cannot be used. Instead you use normal HTML form controls. But how do you access these HTML controls from the code behind? Retrieving values on post back is easy, you just use Request.QueryString or Request.Form. But passing data to the control could be a little messy. Do you use a ASP.NET Literal control in the value field or do you use <%= value % in the markup page? I found it best to add runat="server" to my HTML controls and then you can access the control in your code-behind like this: ((HtmlInputText)txtName).Value = "blah"; Here's a example that shows what you can do with a textbox and drop down list: Default.aspx <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="NoForm.Default" %> <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="NoForm.Default" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title></title> </head> <body> <form action="" method="post"> <label for="txtName">Name:</label> <input id="txtName" name="txtName" runat="server" /><br /> <label for="ddlState">State:</label> <select id="ddlState" name="ddlState" runat="server"> <option value=""></option> </select><br /> <input type="submit" value="Submit" /> </form> </body> </html> Default.aspx.cs using System; using System.Web.UI.HtmlControls; using System.Web.UI.WebControls; namespace NoForm { public partial class Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { //Default values string name = string.Empty; string state = string.Empty; if (Request.RequestType == "POST") { //If form submitted (post back) name = Request.Form["txtName"]; state = Request.Form["ddlState"]; //Server side form validation would go here //and actions to process form and redirect } ((HtmlInputText)txtName).Value = name; ((HtmlSelect)ddlState).Items.Add(new ListItem("ACT")); ((HtmlSelect)ddlState).Items.Add(new ListItem("NSW")); ((HtmlSelect)ddlState).Items.Add(new ListItem("NT")); ((HtmlSelect)ddlState).Items.Add(new ListItem("QLD")); ((HtmlSelect)ddlState).Items.Add(new ListItem("SA")); ((HtmlSelect)ddlState).Items.Add(new ListItem("TAS")); ((HtmlSelect)ddlState).Items.Add(new ListItem("VIC")); ((HtmlSelect)ddlState).Items.Add(new ListItem("WA")); if (((HtmlSelect)ddlState).Items.FindByValue(state) != null) ((HtmlSelect)ddlState).Value = state; } } } As you can see, you have similar functionality to ASP.NET server controls but more control over the final markup, and less overhead like ViewState and all the JavaScript ASP.NET adds. Interestingly you can also use HttpPostedFile to handle file uploads using your own input type="file" control (and necessary form enctype="multipart/form-data"). So my question is can you see any problems with this method, and any thoughts on it's usefulness? I have further details and tests on my blog.

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  • Product Support Webcast for Existing Customers: WebCenter Content 11.1.1.8 Overview and Support Information

    - by John Klinke
    Register for our upcoming Advisor Webcast 'WebCenter Content 11.1.1.8 Overview and Support Information' scheduled for 11am Eastern, November 21, 2013 (10am Central, 9am Mountain, 8am Pacific, 17:00 Europe Time (Paris, GMT+01:00)).This 1-hour session is recommended for technical and functional users who have installed or plan to upgrade to WebCenter Content 11.1.1.8 or would just like more information on the latest release.Topics will include: Overview of new features and enhancements Installation of the new WebCenter Content web UI Upgrading from older WebCenter Content versions Support issues including latest patches Roadmap of proposed additional features Make sure you register and mark this date on your calendar. Register at: https://oracleaw.webex.com/oracleaw/onstage/g.php?d=590991341&t=aOnce the host approves your request, you will receive a confirmation email with instructions for joining the call on November 21st.

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  • Transient network dropout for Xen DomU's

    - by Stephen C
    We've got a CentOS server running a cluster of virtuals. Occasionally the cluster's internal network drops out for a minute or so ... and then comes back. The problem is somehow related to the actual network traffic, but it is not a simple load issue. (The system is generally lightly loaded, and the problem occurs irrespective of actual load.) The setup: CentOS 5.6 on Dom0, various CentOS on the DomU's Hardware - a Dell R710 with a BroadCom NextXpress 2 NIC (sigh) using the latest drivers for the NIC from BroadCom Xen configured to use network-bridge and vif-bridge Some iptable tweaks to route an unrelated port to one of the virtuals. The system has one externally visible IP address, and Dom0 runs an Apache httpd configured with a number of virtual hosts each of which reverse proxies to web servers running on the virtuals. (The virtuals have to be NAT'ed, primarily because we don't have enough allocated public IP addresses.) The symptoms: Works fine most of the time. When someone tries to UPLOAD a large file to one virtuals, the internal network drops out ... for all virtuals: The Dom0 httpd sees a network timeout talking to the backend server on the virtual and reports a 502. A previously established ssh connection from Dom0 to any of the DomU's freezes. Our monitoring shows ping failures for traffic between virtuals. The Xen consoles to the DomU's do not freeze. No log messages in any log files that I can see, on either Dom0 or the DomU's ... apart from the Dom0 httpd logs. After a minute or so, the problem clears by itself. This is 100% reproducible. What we've tried: Downloading, building and installing the latest BNX2 driver on Dom0 Turning off MSI on the NIC - adding "options bnx2 disable_msi=1" to /etc/modprobe.conf Turning off tcp segmentation offload - "ethtool -K eth0 tso off". Sacrificing a black rooster at midnight. I've exhausted all my options apart from switching to KVM ... or slaughtering more roosters. Any suggestions?

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  • What is the difference between "Redirection" and "Pipe"?

    - by John Threepwood
    This question may sound a bit stupid, but I can not really see the difference between redirection and pipes. Redirection is used to redirect the stdout/stdin/stderr, e.g. ls > log.txt. Pipes are used to give the output of a command as input to another command, e.g. ls | grep file.txt. But why are there two operators for the same thing ? Why not just write ls > grep to pass the output through, isn't this just a kind of redirection also ? What I am missing ?

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  • Best way to setup multiple sites' emails in my Gmail

    - by John
    I've a dozen sites and I want all of their emails come to my one gmail id and I want to reply centrally from Gmail only. I've also added all of those emails in "send email as:" list in Gmail. I could add email forwarders in my Cpanel but in that case I'll not be able to send email whose inboxes haven't been created( for example [email protected]). If I create email account then I'd receive emails in my inbox as well as forwared by the forwarder( to my gmail id). Otherwise I can setup Gmail for my domain. But for a dozen emails I'm not sure if that'd be fine. I see in http://www.google.com/enterprise/apps/business/pricing.html that for up to 10 emails it is free. But then to send email from webhosting the php code will need SMTP login details and leaving my important gmail account details in my webhosting account is very risky given my sites have been compromised twice. What is the best way to centralize all my emails so that I can read/reply/search from single place?

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  • How to disallow indexing but allow crawling?

    - by John Doe
    In the front page of my website, I have some previews to articles (with a small introduction to them) that link to the full articles. I want to disallow the front page to prevent duplicate content. But if I do this (in robots.txt), would it still be crawled? I mean, the full articles would be still reached by the crawler even though I disallowed the only page that links to them? I don't want the webcrawler not to access the page and enter the links in them, but I just don't want it to save the information (that will be repeated in the full articles).

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  • Code Line Delimiter [closed]

    - by John Isaiah Carmona
    Possible Duplicate: Why are statements in many programming languages terminated by semicolons? I just found out that R Programming Language, which is somewhat belong to the C family (I'm not sure about this but it uses {} instead of begin end), uses a new line as a delimiter for a new line of code instead of the semi-colon ;. Why is some programming language designed to use a new line instead of a symbol like semi-colon which I think will make the code more readable? Phyton total = item_one + \ item_two + \ item_three C total = item_one + item_two + item_three;

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  • 'dd' access to a drive

    - by John
    I've been working with making custom bootloader and kernel code (not necessarily Linux kernel). I'm putting the images on USB, and was using dd to place them on the sector they needed to be on, and I'm getting tired of burning the image to /dev/sda instead of /dev/sdb (effectively destroying my hard drive). So I was wondering if I could somehow give user access to the 'dd' command, but only to the /dev/sdb drive, so that if I accidentally type /dev/sda it won't let me, because I wouldn't have run the command as sudo or root.

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  • How should I configure nginx caching headers for a "baked" static file blog? (Octopress)

    - by Doug Stephen
    I recently deployed an Octopress blog (which is a blogging platform built around Jekyll). It's a static-site blog generator, with no dynamic content or databases to muck about with. It's being served up by nginx. My question is, what is the appropriate expires directive or Cache-Control header that I should set to make sure that visitors get the most up-to-date version of the site when they visit without having to manually refresh? Since the site is just .html files it seems to get cached pretty aggressively. I've tried a million different combinations of expires modified + xxxx and even straight up expires off but I can't seem to wrap my head around it. I'm very new to dealing with caching like this, specifically, on static files that change frequently, and obviously if the site hasn't been changed then I'd like for it to be served up out of the cache. Update (still not solved though): I found open_file_cache, tweaked that. Still no dice. It seems like what I might want to do is use nginx as a proxy cache and use Apache with ETags? Is there really no convenient way to make nginx play nicer with conditional requests from the client? TL;DR: I'm running a static-file blog and I'd like to set up nginx to only serve from the cache if the blog hasn't been updated recently, but I'm too stupid to figure it out myself because I'm relatively new to web servers.

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  • SQL Triggers and when or when not to use them.

    - by John Mitchell
    When I was originally learning about SQL I was always told, only use triggers if you really need to and opt to use stored procedures instead if possible. Now unfortunately at the time (a good few years ago) I wasn't as curious and caring about fundamentals as I am now so never did ask to the reason why. What's the communities opinion in this? Is it just someone's personal preference, or should triggers be avoided (just like cursors) unless there is a good reason for them.

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  • "The protocol 'net.msmq' is not supported."

    - by Randolpho St. John
    OMG, a new lesson! Will wonders never cease? So I ran into an interesting issue setting up a WCF service to consume an MSMQ queue. I won't bother you with the details of how to actually build a WCF/MSMQ service; there are plenty of tutorials on the subject. I want to share with you an interesting error that I ran into and the surprisingly simple fix. The error occurs when attempting to generate a Service Reference or even simply browsing to the WSDL of your WCF/MSMQ service in the form of a YSOD with the following error: "The protocol 'net.msmq' is not supported." After a lot of Googling on the subject turning up plenty of questions with the same error but no answers. So I went digging into some application level config files on a server that already had a WCF/MSMQ service successfully set up by the network admin, and the answer was amazingly simple: If you are hosting an MSMQ/WCF service in IIS, you have to tell IIS to allow net.msmq protocol. It's in the advanced settings for the application or site in which you are hosting the service. .... aaaand, that's it.

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  • Review of Agile Project Management Software

    - by John K. Hines
    Bright Green Projects have an admittedly older blog post entitled Review of Agile Project Management Software | Scrum Kanban Methodology. Since I haven't had time to review Scrum project management tools in quite awhile, it was nice to find a write-up that's as succinct as this one. The thing I like the best about Bright Green's site, besides the product, is the vocabulary they use to describe Agile software development. For example, the couple Scrum with the development methodology they're using (Lean Kanban). Many organisations simply say they're using Scrum, which itself doesn't proscribe any engineering practices. It would add some clarity for teams to adopt the Scrum-Method terminology. At least then you could know if you're walking into a Scrum-Chaos situation.

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  • .bash_history and .cache

    - by John Isaacks
    I have a user who's home directory is a Mercurial repository. Mercurial notified me that there were 2 new unversioned files in my repository. .bash_history and .cache/motd.legal-displayed. I assume bash_history is the history of bash commands for my user. I have no idea what the other is. I don't want these files to be versioned by Mercurial, are they safe to just delete, or will they come back, or mess something up? Can they be moved to somewhere else? Or do I have to add them to my .hgignore file?

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  • Printing PowerPoint slides in black and white

    - by John Paul Cook
    When I do SQL Server training, sometimes students want to print all of the PowerPoint slides and use them for note taking during class. For such purposes, the background is usually better off being suppressed. This is most efficiently done by changing Print Settings as shown below: Personally I recommend that people take notes directly in the slides instead of printing them. PowerPoint has a notes area. If you do want to print slides and notes, once again use the Print Settings to specify this:...(read more)

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  • .htaccess / 301 redirection question

    - by John K
    All my WordPress post URLs generate subdirectories with duplicate content and I do not know what regular expression to use to consistently 301 redirect domain.com/category/post/random-number/ to domain.com/category/post/ and domain.com/category/post/random-number/another-random-number/ also to domain.com/category/post/. Here is an example of my problem: http://www.example.com/features/harb-constitution-not-to-allow-kr-provinces-to-receive-foreign-officials/ http://www.example.com/features/harb-constitution-not-to-allow-kr-provinces-to-receive-foreign-officials/1345257927000/

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  • Product Support Webcast for Existing Customers: Oracle Webcenter Portal 11g User & Administration Tips

    - by John Klinke
    Register for our upcoming Advisor Webcast 'Oracle WebCenter Portal 11g: User & Administration Tips' scheduled for November 12, 2013 at 11:00 am, Eastern Standard Time (8:00 am Pacific Standard Time, 4:00 pm GMT Time, 5:00 pm Europe Time). This 1-hour session is recommended for technical and functional users who use Oracle WebCenter Portal to build company portals using run-time tools.Topics will include:• Whats new in 11.1.1.8 of WebCenter Portal• Terminology Changes• Using the Portal once its built• Setting up Self Registration (Admins)• End User Experience• Development Environment• Patching InformationFor more information and to register for this Advisor Webcast, please see Oracle WebCenter Portal 11g: User & Administration Tips (Doc ID 1585902.1).

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  • Need advice for approach for a web-based app that loads excel worksheet but exposes only the charts

    - by John
    I'm looking for suggestions on the Visual Studio approach to take for a web application that is in the conceptual stage. My environment has a lot of tools: Windows Server 2008 R2 Standard 64bit Visual Studio 2010 Professional Edition Sharepoint 2010 Server Enterprise Edition SQL Server 2008 R2 Office 2010 Professional I know I will need this app to retrieve data from a database (or a web service - not sure exactly at this point). The data needs to be placed in an Excel workbook dynamically. The app will need to have a nice user interface (standard web controls - perhaps with some Javascript effects). The Excel ribbon and worksheet grid will need to be hidden. Some web control(s) will cause the Excel chart(s) to be rendered. I am thinking this sounds like Visual Studio Tools for Office (VSTO) so as to leverage .Net and hide Excel. Can you offer suggestions regarding: One ASP.Net Web App Project One Class Library Project for Excel or perhaps which one of the several different Excel 2010 project types (addin, template, document) Would Excel Services for Sharepoint be useful (or required) ? I am feeling a little overwhelmed with so many choices at this early stage of conceptualizing the app. Can you suggest some ideas for this sort of thing? Also, I am a bit more experienced with C# but I've read VB.Net is better for work with the Excel object model. What are general advises with regard to tool choice and overall approach tradeoffs?

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  • Lower your Applications Infrastructure Cost with Oracle Database 11g

    - by john.brust
    If you missed our live Oracle Database 11g Release 2 webcast last Friday, the replay is available. So, join us for the on demand free Webcast in which Mark Townsend, Vice President of Oracle Database Product Management, discusses how running your Oracle applications (Oracle eBusiness Suite, Oracle's PeopleSoft, and Oracle's Siebel ) on Oracle Database 11g can improve performance and scalability, eliminate downtime, and reduce IT infrastructure costs. In the Q&A segment, Mark answers questions about compression, virtual machines, Oracle Active Data Guard, online application upgrades, and much more. Note: Turn off pop-up blockers if the slides do not advance automatically.

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  • Enterprise Trade Compliance: Changing Trade Operations around the World

    - by John Murphy
    We live in a world of incredible bounty and speed where any product can be delivered anywhere on earth. However, our world is also filled with challenges for business – where volatility, uncertainty, risk, and chaos are our daily companions. To prosper amid the realities of this new world, organizations cannot rely on old strategies; they need new business models. Key trends within the global economy are mandating that companies fully integrate global trade management best practices within broader supply chain management strategies, rather than simply leaving it as a discrete event at the end of the order or procurement cycle. To explain, many companies face a complicated and changing compliance environment. This is directly linked to the speed and configuration of the supply chain, particularly with the explosion of new markets, shorter service cycles and ship times, accelerating rates of globalization and outsourcing, and increasing product complexity and regulation. Read More...

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  • WebCenter Content Technical Resources

    - by John Klinke
    Some useful WebCenter Content technical resources that you might not be aware of: WebCenter Content Support's Twitter Account: Follow Oracle WebCenter Content Support on Twitter @OrcleWCCSupport to keep informed about webcasts, patches, new releases, tips and tricks, and more. Oracle WebCenter & ADF Architecture Team Blog: Frequent posts by the Oracle Fusion Middleware A-Team discussing WebCenter implementation and configuration topics.  

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  • What do you call this { character?

    - by John Isaacks
    When talking to another programmer I would refer to ( and ) as parentheses. I would refer to [ and ] as brackets. What do you refer to { and } as? I checked the wikipedia article and there were several names listed: curly brackets squiggly brackets definite brackets swirly brackets birdie brackets Scottish brackets squirrelly brackets braces gullwings Is there a term commonly used within programmers to identify these characters?

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