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  • Inspire Geek Love with These Hilarious Geek Valentines

    - by Eric Z Goodnight
    Want to send some Geek Love to that special someone? Why not do it with these elementary school throwback valentines, and win their heart this upcoming Valentine’s day—the geek way! Read on to see the simple method to make your own custom Valentines, as well as download a set of eleven ready-made ones any geek guy or gal should be delighted get. It’s amore! How to Make Custom Valentines A size we’ve used for all of our Valentines is a 3” x 4” at 150 dpi. This is fairly low resolution for print, but makes a great graphic to email. With your new image open, Navigate to Edit > Fill and fill your background layer with a rich, red color (or whatever appeals to you.) By setting “Use” to “Foreground color as shown above, you’ll paint whatever foreground color you have in your color picker. Press to select the text tool. Set a few text objects, using whatever fonts appeal to you. Pixel fonts, like this one, are freely downloadable, and we’ve already shared a great list of Valentines fonts. Copy an image from the internet if you’re confident your sweetie won’t mind a bit of fair use of copyrighted imagery. If they do mind, find yourself some great Creative Commons images. to do a free transform on your image, sizing it to whatever dimensions work best for your design. Right click your newly added image layer in your panel and Choose “Blending Effects” to pick a Layer Style. “Stroke” with this setting adds a black line around your image. Also turning on “Outer Glow” with this setting puts a dark black shadow around the top and bottom (and sides, although they are hidden). Add some more text. Double entendre is recommended. Click and hold down on the “Rectangle Tool” to get the “Custom Shape Tool.” The custom shape tool has useful vector shapes built into it. Find the “Shape” dropdown in the menu to find the heart image. Click and drag to create a vector heart shape in your image. Your layers panel is where you can change the color, if it happens to use the wrong one at first. Click the color swatch in your panel, highlighted in blue above. will transform your vector heart. You can also use it to rotate, if you like. Add some details, like this Power or Standby symbol, which can be found in symbol fonts, taken from images online, or drawn by hand. Your Valentine is now ready to be saved as a JPG or PNG and sent to the object of your affection! Keep reading to see a list of 11 downloadable How-To Geek Valentines, including this one and the three from the header image. Download The HTG Set of Valentines Download the HTG Geek Valentines (ZIP) Download the HTG Geek Valentines (ZIP) When he’s not wooing ladies with Valentines cards, you can email the author at [email protected] with your Photoshop and Graphics questions. Your questions may be featured in a future How-To Geek article! Latest Features How-To Geek ETC Inspire Geek Love with These Hilarious Geek Valentines How to Integrate Dropbox with Pages, Keynote, and Numbers on iPad RGB? CMYK? Alpha? What Are Image Channels and What Do They Mean? How to Recover that Photo, Picture or File You Deleted Accidentally How To Colorize Black and White Vintage Photographs in Photoshop How To Get SSH Command-Line Access to Windows 7 Using Cygwin How to Kid Proof Your Computer’s Power and Reset Buttons Microsoft’s Windows Media Player Extension Adds H.264 Support Back to Google Chrome Android Notifier Pushes Android Notices to Your Desktop Dead Space 2 Theme for Chrome and Iron Carl Sagan and Halo Reach Mashup – We Humans are Capable of Greatness [Video] Battle the Necromorphs Once Again on Your Desktop with the Dead Space 2 Theme for Windows 7

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  • Oracle Tutor: Create Accessible Content for the Disabled Community

    - by emily.chorba(at)oracle.com
    For many reasons--legal, business, and ethical--Oracle recognizes the need for its applications, and our customers' and partners' products built with our tools, to be usable by the disabled community. The following features of Tutor Author and Publisher software facilitate the creation of accessible HTML content for the disabled community.TablesThe following formatting guidelines will ensure that Tutor documents containing tables will be accessible once they are converted to HTML.• Determine whether a table is a "data table" or whether you are using a table simply for formatting. If it's a data table, you must use a heading for each column, and you should format this heading row as "table heading" style and select Table > Heading Rows Repeat.• For non data tables, it is not necessary to include a heading row.GraphicsTo create accessible graphics, add a caption to the graphic. In Microsoft Office 2000 and greater, right-click on the graphic and select Format Picture > Web (tab) > Alternative Text or select the graphic then Format > Picture > Web (tab) Alternative Text. Enter the appropriate information in the dialog box.When a document containing a graphic with alternative text is converted to HTML by Tutor, the HTML document will contain the appropriate accessibility information.Javascript elementsThe tabbed format and other javascript elements in the HTML version of the Tutor documents may not be accessible to all users. A link to an accessible/printable version of the document is available in the upper right corner of all Tutor documents.Repetitive dataIf repetitive data such as the distribution section and the ownership section are causing accessibility issues with your Tutor documents, you can insert a bookmark in the appropriate location of the document, and, when the document is converted to HTML, the bookmark will be converted to an A NAME reference (also known as an internal link). With this reference, you can create a link in Header.txt that can be prepended to each Tutor document that allows the user to bypass repetitive sections. Tutor and Oracle ApplicationsRegarding accessibility, please check Oracle's website on accessibility http://www.oracle.com/accessibility/ to find out what version of E-Business Suite is certified to work with screen readers. Oracle Tutor 11.5.6A and greater works with screen readers such as JAWS.There is no certification between Oracle Tutor and Oracle Applications because there are no related dependencies. It doesn't matter which version of the Oracle Applications you are running. Therefore, it is possible to use Oracle Tutor with earlier versions of Oracle Applications.Oracle Business Process Converter and Oracle ApplicationsOracle Business Process Converter (OBPC) converts Visio, XPDL, and Tutor models to Oracle Business Process Architect and Oracle Business Process Management. The OBPC is one of a collection of plugins to Oracle JDeveloper. Please see the VPAT as the same considerations apply.Learn MoreFor more information about Tutor, visit Oracle.Com or the Tutor Blog. Post your questions at the Tutor Forum. Emily ChorbaPrinciple Product Manager Oracle Tutor & BPM

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  • Which features of user story management should an agile team look for?

    - by Sonja Dimitrijevic
    In my research study, I need to identify the key features of user story management tools that can be used to support agile development. So far, I identified the following general groups of features: User role modeling and personas support, User stories and epics management, Acceptance testing support, High-level release planning, Low-level iteration planning, and Progress tracking. Each group contains some specific features, e.g., support for story points, writing of acceptance tests, etc. Which features of user story management should an agile team look for especially when switching from tangible tools (index cards, pin boards and big visible charts) to a software tool? Are some features more important than the others? Many thanks in advance!

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  • Setting hidden input value in Javascript, then accessing it in c# codebehind

    - by Siegesmith
    Thank you for reading my question. I have been trying to set the value of a hidden input by using Javascript and then access the value from within my C# codebehind. When I run the code that is copied below, the value that is assigned to assignedIDs is "", which I assume is the default value for a hidden input. If I manually set the value in the html tag, then assignedIDs is set to that value. This behavior suggests to me that the value of the input is being reset (re-rendered?) between the onClientClick and onClick events firing. I would appreciate any help with the matter. I have spent hours trying to solve what seems like a very simple problem. html/javascript: <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> <title>Admin Page - Manage Tasks</title> <script language="javascript" type="text/javascript"> function PopulateAssignedIDHiddenInput() { var source = document.getElementById('assignedLinguistListBox'); var s = ""; var count = source.length; for (var i = count - 1; i >= 0; i--) { var item = source.options[i]; if (s == "") { s = source.options[i].value; } else { s = s.concat(",",source.options[i].value); } } document.getElementById('assignedIDHiddenInput').Value = s; // I have confirmed that, at this point, the value of // the hidden input is set properly } </script> </head> <body> <form id="form1" runat="server"> <div> <asp:Panel id="EditMode" runat="server"> <table style="border: none;"> <tr> <td> <asp:Label ID="availableLinguistLabel" runat="server" Text="Available"></asp:Label><br /> <asp:ListBox ID="availableLinguistListBox" runat="server" Rows="10" SelectionMode="Multiple"></asp:ListBox> </td> <td> <input type="button" name="right" value="&gt;&gt;" onclick="Javascript:MoveItem('availableLinguistListBox', 'assignedLinguistListBox');" /><br /><br /> <input type="button" name="left" value="&lt;&lt;" onclick="Javascript:MoveItem('assignedLinguistListBox', 'availableLinguistListBox');" /> </td> <td> <asp:Label ID="assignedLinguistLabel" runat="server" Text="Assigned To"></asp:Label><br /> <asp:ListBox ID="assignedLinguistListBox" runat="server" Rows="10" SelectionMode="Multiple"></asp:ListBox> </td> </tr> </table> //-snip- <asp:Button ID="save_task_changes_button" runat="server" ToolTip="Click to save changes to task" Text="Save Changes" OnClick="save_task_changes_button_click" OnClientClick="Javascript:PopulateAssignedIDHiddenInput()" /> </asp:Panel> <!-- Hidden Inputs --> <!-- Note that I have also tried setting runat="server" with no change --> <input id="assignedIDHiddenInput" name="assignedIDHiddenInput" type="hidden" /> </div> </form> </body> c# protected void save_task_changes_button_click(object sender, EventArgs e) { string assignedIDs = Request.Form["assignedIDHiddenInput"]; // Here, assignedIDs == ""; also, Request.Params["assignedIDHiddenInput"] == "" // -snip- }

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  • Setting hidden input value in Javascript, then accessing it in codebehind

    - by Siegesmith
    I have been trying to set the value of a hidden input by using Javascript and then access the value from within my C# codebehind. When I run the code that is copied below, the value that is assigned to assignedIDs is "", which I assume is the default value for a hidden input. If I manually set the value in the html tag, then assignedIDs is set to that value. This behavior suggests to me that the value of the input is being reset (re-rendered?) between the onClientClick and onClick events firing. I would appreciate any help with the matter. I have spent hours trying to solve what seems like a very simple problem. html/javascript: <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> <title>Admin Page - Manage Tasks</title> <script language="javascript" type="text/javascript"> function PopulateAssignedIDHiddenInput() { var source = document.getElementById('assignedLinguistListBox'); var s = ""; var count = source.length; for (var i = count - 1; i >= 0; i--) { var item = source.options[i]; if (s == "") { s = source.options[i].value; } else { s = s.concat(",",source.options[i].value); } } document.getElementById('assignedIDHiddenInput').Value = s; // I have confirmed that, at this point, the value of // the hidden input is set properly } </script> </head> <body> <form id="form1" runat="server"> <div> <asp:Panel id="EditMode" runat="server"> <table style="border: none;"> <tr> <td> <asp:Label ID="availableLinguistLabel" runat="server" Text="Available"></asp:Label><br /> <asp:ListBox ID="availableLinguistListBox" runat="server" Rows="10" SelectionMode="Multiple"></asp:ListBox> </td> <td> <input type="button" name="right" value="&gt;&gt;" onclick="Javascript:MoveItem('availableLinguistListBox', 'assignedLinguistListBox');" /><br /><br /> <input type="button" name="left" value="&lt;&lt;" onclick="Javascript:MoveItem('assignedLinguistListBox', 'availableLinguistListBox');" /> </td> <td> <asp:Label ID="assignedLinguistLabel" runat="server" Text="Assigned To"></asp:Label><br /> <asp:ListBox ID="assignedLinguistListBox" runat="server" Rows="10" SelectionMode="Multiple"></asp:ListBox> </td> </tr> </table> //-snip- <asp:Button ID="save_task_changes_button" runat="server" ToolTip="Click to save changes to task" Text="Save Changes" OnClick="save_task_changes_button_click" OnClientClick="Javascript:PopulateAssignedIDHiddenInput()" /> </asp:Panel> <!-- Hidden Inputs --> <!-- Note that I have also tried setting runat="server" with no change --> <input id="assignedIDHiddenInput" name="assignedIDHiddenInput" type="hidden" /> </div> </form> </body> c# protected void save_task_changes_button_click(object sender, EventArgs e) { string assignedIDs = Request.Form["assignedIDHiddenInput"]; // Here, assignedIDs == ""; also, Request.Params["assignedIDHiddenInput"] == "" // -snip- }

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  • nothing in dev folder

    - by 4321bust
    hi, i'm new to this so bear with me plz. im attempting to set up git on my mac and need to be using my dev folder. however, there seems to be nothing in my folder ("zero KB on disk") with no sub directories listed. other hidden directories are intact. i've never really gone this deep into things before so i'm not sure how/why anything would previously have been deleted. any help greatly appreciated.

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  • How to find a hidden streaming video/audio link and record it

    - by Stan
    I've been using 'URL snooper' to find the hidden streaming url. And feed that url to VLC to record streaming video/audio. But the VLC can't read those url. Then I also found that the url is like a floating url that changes every several hours. So the same audio station won't have same url. The streaming audio provider has bunches of audio stations and shuffle the link frequently. Is there any way to record the streaming media in this case? Please advise, thanks.

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  • How to find a hidden stream video/audio link and record it

    - by Stan
    I've been using 'URL snooper' to find the hidden streaming url. And feed that url to VLC to record streaming video/audio. But the VLC can't read those url. Then I also found that the url is like a floating url that changes every several hours. So the same audio station won't have same url. The streaming audio provider has bunches of audio stations and shuffle the link frequently. Is there any way to record the streaming media in this case? Please advise, thanks.

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  • Windows 7 Sub-Folders hidden in "Program Files" directory

    - by ron tornambe
    I have Google searched for an hour now and I am confounded. I am using InnoSetup to install a .NET Winforms application that creates directories and folders on the fly. (I have set the folder options to display hidden files, folders...) Although the files that are added to "created" folders appear within the application, they do not show when using Windows Explorer or even when issuing a Dir from a command prompt. I have also modified the application to display (and delete) the contents of these (seemingly imaginary) folders, so I am sure they exist. What am I missing?

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  • Does Exchange have ability to run hidden mailboxes?

    - by MadBoy
    Hello, Title of my question may sound a little bit odd but I was thinking if Exchange 2010 or 2007 or any program that would work in conjunction with Exchange has ability to create this structure: Users having their normal mailboxes connected and using them as everyone would in Outlook 2003/2007/2010. Users having additional mailboxes (from old Exchange 2003) attached but hidden on demand of Administrator. For example administrator could easy disable them just like they never been attached making them invisible to users and everyone else. Would be good if such mailboxes could be easily removed out of system (lets say on external drive) by simple step not manual job for 100 mailboxes. Users without ability to copy/move their mails to outside storage (like a local .pst file)? Do you guys have any suggestions on this? I was thinking maybe using public folders but this seems like overkill and not really suited for this. And please don't ask me why I need this type of security (it's not something I requested).

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  • Hidden bootloader

    - by Jack
    I need a bootloader that will work as described: I want my computer to boot Windows, that is my main OS installed on a primary bootable partition. However, I'd like to have a 2-3 second span with blinking cursor, before Windows starts. If I press any key in that period it should launch Ubuntu from a small Truecrypt-encoded partition, upon providing a correct password. In other words I'm looking for a hidden bootloader that would expose itself only when a key is pressed during a certain time. Do you happen to know anything like that?

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  • rsync: files copied with hidden attribute

    - by haritan
    I run a backup from Windows 7 machine to Mac machine running Mountain Lion using rsync that is packaged in DeltaCopy application. I can't use DeltaCopy interface because the destination is a mapped drive (Mac's samba drive). So here is my setup: I have a folder in Mac that is the destination folder and I share this folder via Samba share. On windows machine, I map this samba share to a drive (let's say M:/) I run rsync: rsync -arv --delete "/cygdrive/C//origin/" "/cygdrive/M//mybackup/" it runs fine except that all files on the destination are hidden. Anyone has an idea on what's happening here? I really appreciate any feedback. Thank you.

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  • 10 Great Free Icon Packs To Theme Your Android Phone

    - by Chris Hoffman
    Android allows you to customize your home screen, adding widgets, arranging shortcuts and folders, choosing a background, and even replacing the included launcher entirely. You can install icon packs to theme your app icons, too. Third-party launchers use standard app icons by default, but they don’t have to. You can install icon packs that third-party launchers will use in place of standard app icons. How to Use Icon Packs To use icon packs, you’ll need to use a third-party launcher that supports them, such as Nova, Apex, ADW, Go Launcher, Holo Launcher, or Action Launcher Pro. Once you’re using a third-party launcher, you can install an icon pack and go into your launcher’s settings. You’ll find an option that allows you to choose between the icon packs you’ve installed. Many of these icon packs also include wallpapers, which you can set in the normal way. MIUI 5 Icons This icon pack offers over 1900 free icons that are similar to the icons used by the MIUi ROM developed by China’s Xiaomi Tech. The large list of icons is a big plus — this pack will give the majority of your app icons a very slick, consistent look. DCikonZ Theme DCikonZ is a free icon theme that includes a whopping 4000+ icons with a consistent look. This icon theme stands out not just because it’s huge, but also for offering for going in its own direction and avoiding the super-simple, flat look many icon packs use. Holo Icons Holo Icons replaces many app icons with simple, consistent-looking that match Google’s Holo style. If you’re a fan of Android’s Holo look, give it a try. It even tweaks many of the icons from Google’s own apps to make them look more consistent. Square Icon Pack Square Icon Pack turns your icons into simple squares. Even Google Chrome becomes an orb instead of a square. This makes every icon a consistent size and offers a unique look. The icons here almost look a bit like the small-size tiles available on Windows Phone and Windows 8.1. The free version doesn’t offer as many icons as the paid version, but it does offer icons for many popular apps. Rounded Want rounded icons instead? Try the Rounded icon theme, which offers simple rounded icons. The developer says they’re inspired by the consistently round icons used on Mozilla’s Firefox OS. Crumbled Icon Pack Crumbled Icon Pack applies an effect that makes icons look as if they’r crumbling. Rather than theming individual icons, Crumbled Icon Pack adds an effect to every app icon on your device. This means that all your app icons will be themed and consistent. Dainty Icon Pack Is your Android home screen too colorful? Dainty Icon Pack offers simple, gray-on-white icons for over 1200 apps. It’d be ideal over a simple background. The contrast may be a bit low here with the gray-on-white, but it’s otherwise very slick. Simplex Icons Simplex Icons offers more contrast, with black-on-gray icons. This icon pack could simplify busy home screens, allowing photographic wallpapers to come through. Min Icon Set Min attempts to go as minimal as possible, offering simple white icons for over 570 apps. It would be ideal over a simple wallpaper with app names hidden in your launcher, offering a calming, minimal home screen. For apps it doesn’t recognize, it will enclose part of the app’s icon in a white circle. Elegance Elegance goes in another direction entirely, offering icons that incorporate more details and gradients rather than going for minimalism. Its over 1200 icons offer another good option for people who aren’t into the minimal, flat look. Icon pack designers generally have to create and include their own icons to replace icons associated with specific apps, so you’ll probably find a few of your app icons aren’t replaced with most of these themes. Of course, a standard Android phone without an icon pack doesn’t have consistent icons, either. Even if all the icons in your app drawer aren’t themed, the few app icons you have on your home screen will be if you use widely used apps.     

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  • Warning message during boot after installation of kernel 3.3: Kernel needs AppArmor 2.4 compatibility patch

    - by Matus Frisik
    I have Ubuntu Server 11.10 and after installation of kernel 3.3 (I just followed instructions from site www.upbuntu.com - How To Install Linux 3.3 Kernel In Ubuntu 11.10/12.04) It shows me following message during boot: fsck from util-linux 2.19.1 fsck from util-linux 2.19.1 /dev/sda5: clean, 204099/1152816 files, 988854/4608639 blocks /dev/sda6: clean, 2345/1281120 files, 142711/5120710 blocks modem-manager[830]: ModemManager (version 0.5) starting... * Starting mDNS/DNS-SD daemon [154G[ OK ] * Starting CUPS printing spooler/server [154G[ OK ] * Starting Mount network filesystems [154G[ OK ] * Stopping Mount network filesystems [154G[ OK ] * Starting System V initialisation compatibility [154G[ OK ] * Stopping Failsafe Boot Delay [154G[ OK ] Cache read/write disabled: /sys/kernel/security/apparmor/features interface file missing. (Kernel needs AppArmor 2.4 compatibility patch.) Warning from /etc/apparmor.d/bin.ping (/etc/apparmor.d/bin.ping line 28): profile /bin/ping network rules not enforced Cache read/write disabled: /sys/kernel/security/apparmor/features interface file missing. (Kernel needs AppArmor 2.4 compatibility patch.) Warning from /etc/apparmor.d/lightdm-guest-session (/etc/apparmor.d/lightdm-guest-session line 71): profile /usr/lib/lightdm/lightdm-guest-session-wrapper network rules not enforced Cache read/write disabled: /sys/kernel/security/apparmor/features interface file missing. (Kernel needs AppArmor 2.4 compatibility patch.) Warning from /etc/apparmor.d/sbin.dhclient (/etc/apparmor.d/sbin.dhclient line 73): profile /sbin/dhclient network rules not enforced Cache read/write disabled: /sys/kernel/security/apparmor/features interface file missing. (Kernel needs AppArmor 2.4 compatibility patch.) Warning from /etc/apparmor.d/sbin.klogd (/etc/apparmor.d/sbin.klogd line 35): profile /sbin/klogd network rules not enforced Cache read/write disabled: /sys/kernel/security/apparmor/features interface file missing. (Kernel needs AppArmor 2.4 compatibility patch.) Warning from /etc/apparmor.d/sbin.syslog-ng (/etc/apparmor.d/sbin.syslog-ng line 52): profile /sbin/syslog-ng network rules not enforced Cache read/write disabled: /sys/kernel/security/apparmor/features interface file missing. (Kernel needs AppArmor 2.4 compatibility patch.) Warning from /etc/apparmor.d/sbin.syslogd (/etc/apparmor.d/sbin.syslogd line 40): profile /sbin/syslogd network rules not enforced Cache read/write disabled: /sys/kernel/security/apparmor/features interface file missing. (Kernel needs AppArmor 2.4 compatibility patch.) Warning from /etc/apparmor.d/usr.bin.chromium-browser (/etc/apparmor.d/usr.bin.chromium-browser line 165): profile /usr/lib/chromium-browser/chromium-browser network rules not enforced Warning from /etc/apparmor.d/usr.bin.chromium-browser (/etc/apparmor.d/usr.bin.chromium-browser line 165): profile browser_java network rules not enforced Warning from /etc/apparmor.d/usr.bin.chromium-browser (/etc/apparmor.d/usr.bin.chromium-browser line 165): profile browser_openjdk network rules not enforced Cache read/write disabled: /sys/kernel/security/apparmor/features interface file missing. (Kernel needs AppArmor 2.4 compatibility patch.) Warning from /etc/apparmor.d/usr.bin.evince (/etc/apparmor.d/usr.bin.evince line 142): profile /usr/bin/evince network rules not enforced Warning from /etc/apparmor.d/usr.bin.evince (/etc/apparmor.d/usr.bin.evince line 142): profile /usr/bin/evince-previewer network rules not enforced Warning from /etc/apparmor.d/usr.bin.evince (/etc/apparmor.d/usr.bin.evince line 142): profile /usr/bin/evince-thumbnailer network rules not enforced Cache read/write disabled: /sys/kernel/security/apparmor/features interface file missing. (Kernel needs AppArmor 2.4 compatibility patch.) Skipping profile in /etc/apparmor.d/disable: usr.bin.firefox Cache read/write disabled: /sys/kernel/security/apparmor/features interface file missing. (Kernel needs AppArmor 2.4 compatibility patch.) Warning from /etc/apparmor.d/usr.lib.dovecot.deliver (/etc/apparmor.d/usr.lib.dovecot.deliver line 24): profile /usr/lib/dovecot/deliver network rules not enforced Cache read/write disabled: /sys/kernel/security/apparmor/features interface file missing. (Kernel needs AppArmor 2.4 compatibility patch.) Warning from /etc/apparmor.d/usr.lib.dovecot.dovecot-auth (/etc/apparmor.d/usr.lib.dovecot.dovecot-auth line 24): profile /usr/lib/dovecot/dovecot-auth network rules not enforced Cache read/write disabled: /sys/kernel/security/apparmor/features interface file missing. (Kernel needs AppArmor 2.4 compatibility patch.) Warning from /etc/apparmor.d/usr.lib.dovecot.imap (/etc/apparmor.d/usr.lib.dovecot.imap line 23): profile /usr/lib/dovecot/imap network rules not enforced Cache read/write disabled: /sys/kernel/security/apparmor/features interface file missing. (Kernel needs AppArmor 2.4 compatibility patch.) Warning from /etc/apparmor.d/usr.lib.dovecot.imap-login (/etc/apparmor.d/usr.lib.dovecot.imap-login line 22): profile /usr/lib/dovecot/imap-login network rules not enforced Cache read/write disabled: /sys/kernel/security/apparmor/features interface file missing. (Kernel needs AppArmor 2.4 compatibility patch.) Warning from /etc/apparmor.d/usr.lib.dovecot.managesieve-login (/etc/apparmor.d/usr.lib.dovecot.managesieve-login line 22): profile /usr/lib/dovecot/managesieve-login network rules not enforced Cache read/write disabled: /sys/kernel/security/apparmor/features interface file missing. (Kernel needs AppArmor 2.4 compatibility patch.) Warning from /etc/apparmor.d/usr.lib.dovecot.pop3 (/etc/apparmor.d/usr.lib.dovecot.pop3 line 22): profile /usr/lib/dovecot/pop3 network rules not enforced Cache read/write disabled: /sys/kernel/security/apparmor/features interface file missing. (Kernel needs AppArmor 2.4 compatibility patch.) Warning from /etc/apparmor.d/usr.lib.dovecot.pop3-login (/etc/apparmor.d/usr.lib.dovecot.pop3-login line 21): profile /usr/lib/dovecot/pop3-login network rules not enforced Cache read/write disabled: /sys/kernel/security/apparmor/features interface file missing. (Kernel needs AppArmor 2.4 compatibility patch.) Warning from /etc/apparmor.d/usr.lib.telepathy (/etc/apparmor.d/usr.lib.telepathy line 86): profile /usr/lib/telepathy/mission-control-5 network rules not enforced Warning from /etc/apparmor.d/usr.lib.telepathy (/etc/apparmor.d/usr.lib.telepathy line 86): profile /usr/lib/telepathy/telepathy-* network rules not enforced Cache read/write disabled: /sys/kernel/security/apparmor/features interface file missing. (Kernel needs AppArmor 2.4 compatibility patch.) Warning from /etc/apparmor.d/usr.sbin.avahi-daemon (/etc/apparmor.d/usr.sbin.avahi-daemon line 30): profile /usr/sbin/avahi-daemon network rules not enforced Cache read/write disabled: /sys/kernel/security/apparmor/features interface file missing. (Kernel needs AppArmor 2.4 compatibility patch.) Warning from /etc/apparmor.d/usr.sbin.cupsd (/etc/apparmor.d/usr.sbin.cupsd line 170): profile /usr/lib/cups/backend/cups-pdf network rules not enforced Warning from /etc/apparmor.d/usr.sbin.cupsd (/etc/apparmor.d/usr.sbin.cupsd line 170): profile /usr/sbin/cupsd network rules not enforced Cache read/write disabled: /sys/kernel/security/apparmor/features interface file missing. (Kernel needs AppArmor 2.4 compatibility patch.) Warning from /etc/apparmor.d/usr.sbin.dnsmasq (/etc/apparmor.d/usr.sbin.dnsmasq line 51): profile /usr/sbin/dnsmasq network rules not enforced Cache read/write disabled: /sys/kernel/security/apparmor/features interface file missing. (Kernel needs AppArmor 2.4 compatibility patch.) Warning from /etc/apparmor.d/usr.sbin.dovecot (/etc/apparmor.d/usr.sbin.dovecot line 37): profile /usr/sbin/dovecot network rules not enforced Cache read/write disabled: /sys/kernel/security/apparmor/features interface file missing. (Kernel needs AppArmor 2.4 compatibility patch.) Warning from /etc/apparmor.d/usr.sbin.identd (/etc/apparmor.d/usr.sbin.identd line 31): profile /usr/sbin/identd network rules not enforced Cache read/write disabled: /sys/kernel/security/apparmor/features interface file missing. (Kernel needs AppArmor 2.4 compatibility patch.) Warning from /etc/apparmor.d/usr.sbin.mdnsd (/etc/apparmor.d/usr.sbin.mdnsd line 35): profile /usr/sbin/mdnsd network rules not enforced Cache read/write disabled: /sys/kernel/security/apparmor/features interface file missing. (Kernel needs AppArmor 2.4 compatibility patch.) Warning from /etc/apparmor.d/usr.sbin.mysqld (/etc/apparmor.d/usr.sbin.mysqld line 44): profile /usr/sbin/mysqld network rules not enforced Cache read/write disabled: /sys/kernel/security/apparmor/features interface file missing. (Kernel needs AppArmor 2.4 compatibility patch.) Warning from /etc/apparmor.d/usr.sbin.nmbd (/etc/apparmor.d/usr.sbin.nmbd line 21): profile /usr/sbin/nmbd network rules not enforced Cache read/write disabled: /sys/kernel/security/apparmor/features interface file missing. (Kernel needs AppArmor 2.4 compatibility patch.) Warning from /etc/apparmor.d/usr.sbin.nscd (/etc/apparmor.d/usr.sbin.nscd line 46): profile /usr/sbin/nscd network rules not enforced Cache read/write disabled: /sys/kernel/security/apparmor/features interface file missing. (Kernel needs AppArmor 2.4 compatibility patch.) Warning from /etc/apparmor.d/usr.sbin.smbd (/etc/apparmor.d/usr.sbin.smbd line 40): profile /usr/sbin/smbd network rules not enforced Cache read/write disabled: /sys/kernel/security/apparmor/features interface file missing. (Kernel needs AppArmor 2.4 compatibility patch.) Warning from /etc/apparmor.d/usr.sbin.tcpdump (/etc/apparmor.d/usr.sbin.tcpdump line 64): profile /usr/sbin/tcpdump network rules not enforced Cache read/write disabled: /sys/kernel/security/apparmor/features interface file missing. (Kernel needs AppArmor 2.4 compatibility patch.) Warning from /etc/apparmor.d/usr.sbin.traceroute (/etc/apparmor.d/usr.sbin.traceroute line 26): profile /usr/sbin/traceroute network rules not enforced * Starting AppArmor profiles [160G [154G[ OK ] speech-dispatcher disabled; edit /etc/default/speech-dispatcher Checking for running unattended-upgrades: What does this warnings mean and how can I fix it? Informations about my system: response@response:~$ uname -a Linux response 3.3.0-030300-generic #201203182135 SMP Mon Mar 19 01:43:18 UTC 2012 i686 i686 i386 GNU/Linux

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  • HTG Explains: Are You Using IPv6 Yet? Should You Even Care?

    - by Chris Hoffman
    IPv6 is extremely important for the long-term health of the Internet. But is your Internet service provider providing IPv6 connectivity yet? Does your home network support it? Should you even care if you’re using IPv6 yet? Switching from IPv4 to IPv6 will give the Internet a much larger pool of IP addresses. It should also allow every device to have its own public IP address, rather than be hidden behind a NAT router. IPv6 is Important Long-Term IPv6 is very important for the long-term health of the Internet. There are only about 3.7 billion public IPv4 addresses. This may sound like a lot, but it isn’t even one IP address for each person on the planet. Considering people have more and more Internet-connected devices — everything from light bulbs to thermostats are starting to become network-connected — the lack of IP addresses is already proving to be a serious problem. This may not affect those of us in well-off developed countries just yet, but developing countries are already running out of IPv4 addresses. So, if you work at an Internet service provider, manage Internet-connected servers, or develop software or hardware — yes, you should care about IPv6! You should be deploying it and ensuring your software and hardware works properly with it. It’s important to prepare for the future before the current IPv4 situation becomes completely unworkable. But, if you’re just typical user or even a typical geek with a home Internet connection and a home network, should you really care about your home network just yet? Probably not. What You Need to Use IPv6 To use IPv6, you’ll need three things: An IPv6-Compatible Operating System: Your operating system’s software must be capable of using IPv6. All modern desktop operating systems should be compatible — Windows Vista and newer versions of Windows, as well as modern versions of Mac OS X and Linux. Windows XP doesn’t have IPv6 support installed by default, but you shouldn’t be using Windows XP anymore, anyway. A Router With IPv6 Support: Many — maybe even most — consumer routers in the wild don’t support IPv6. Check your router’s specifications details to see if it supports IPv6 if you’re curious. If you’re going to buy a new router, you’ll probably want to get one with IPv6 support to future-proof yourself. If you don’t have an IPv6-enabled router yet, you don’t need to buy a new one just to get it. An ISP With IPv6 Enabled:  Your Internet service provider must also have IPv6 set up on their end. Even if you have modern software and hardware on your end, your ISP has to provide an IPv6 connection for you to use it. IPv6 is rolling out steadily, but slowly — there’s a good chance your ISP hasn’t enabled it for you yet. How to Tell If You’re Using IPv6 The easiest way to tell if you have IPv6 connectivity is to visit a website like testmyipv6.com. This website allows you to connect to it in different ways — click the links near the top to see if you can connect to the website via different types of connections. If you can’t connect via IPv6, it’s either because your operating system is too old (unlikely), your router doesn’t support IPv6 (very possible), or because your ISP hasn’t enabled it for you yet (very likely). Now What? If you can connect to the test website above via IPv6, congratulations! Everything is working as it should. Your ISP is doing a good job of rolling out IPv6 rather than dragging its feet. There’s a good chance you won’t have IPv6 working properly, however. So what should you do about this — should you head to Amazon and buy a new IPv6-enabled router or switch to an ISP that offers IPv6? Should you use a “tunnel broker,” as the test site recommends, to tunnel into IPv6 via your IPv4 connection? Well, probably not. Typical users shouldn’t have to worry about this yet. Connecting to the Internet via IPv6 shouldn’t be perceptibly faster, for example. It’s important for operating system vendors, hardware companies, and Internet service providers to prepare for the future and get IPv6 working, but you don’t need to worry about this on your home network. IPv6 is all about future-proofing. You shouldn’t be racing to implement this at home yet or worrying about it too much — but, when you need to buy a new router, try to buy one that supports IPv6. Image Credit: Adobe of Chaos on Flickr, hisperati on Flickr, Vox Efx on Flickr     

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  • How to Share Files Between User Accounts on Windows, Linux, or OS X

    - by Chris Hoffman
    Your operating system provides each user account with its own folders when you set up several different user accounts on the same computer. Shared folders allow you to share files between user accounts. This process works similarly on Windows, Linux, and Mac OS X. These are all powerful multi-user operating systems with similar folder and file permission systems. Windows On Windows, the “Public” user’s folders are accessible to all users. You’ll find this folder under C:\Users\Public by default. Files you place in any of these folders will be accessible to other users, so it’s a good way to share music, videos, and other types of files between users on the same computer. Windows even adds these folders to each user’s libraries by default. For example, a user’s Music library contains the user’s music folder under C:\Users\NAME\as well as the public music folder under C:\Users\Public\. This makes it easy for each user to find the shared, public files. It also makes it easy to make a file public — just drag and drop a file from the user-specific folder to the public folder in the library. Libraries are hidden by default on Windows 8.1, so you’ll have to unhide them to do this. These Public folders can also be used to share folders publically on the local network. You’ll find the Public folder sharing option under Advanced sharing settings in the Network and Sharing Control Panel. You could also choose to make any folder shared between users, but this will require messing with folder permissions in Windows. To do this, right-click a folder anywhere in the file system and select Properties. Use the options on the Security tab to change the folder’s permissions and make it accessible to different user accounts. You’ll need administrator access to do this. Linux This is a bit more complicated on Linux, as typical Linux distributions don’t come with a special user folder all users have read-write access to. The Public folder on Ubuntu is for sharing files between computers on a network. You can use Linux’s permissions system to give other user accounts read or read-write access to specific folders. The process below is for Ubuntu 14.04, but it should be identical on any other Linux distribution using GNOME with the Nautilus file manager. It should be similar for other desktop environments, too. Locate the folder you want to make accessible to other users, right-click it, and select Properties. On the Permissions tab, give “Others” the “Create and delete files” permission. Click the Change Permissions for Enclosed Files button and give “Others” the “Read and write” and “Create and Delete Files” permissions. Other users on the same computer will then have read and write access to your folder. They’ll find it under /home/YOURNAME/folder under Computer. To speed things up, they can create a link or bookmark to the folder so they always have easy access to it. Mac OS X Mac OS X creates a special Shared folder that all user accounts have access to. This folder is intended for sharing files between different user accounts. It’s located at /Users/Shared. To access it, open the Finder and click Go > Computer. Navigate to Macintosh HD > Users > Shared. Files you place in this folder can be accessed by any user account on your Mac. These tricks are useful if you’re sharing a computer with other people and you all have your own user accounts — maybe your kids have their own limited accounts. You can share a music library, downloads folder, picture archive, videos, documents, or anything else you like without keeping duplicate copies.

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  • Letting a new PHP page know a new POST value is an Array?

    - by Wintermute
    I have a page that creates an associative array, then passes it as a hidden value to a new PHP page. I have a foreach loop waiting to iterate through it but it coughs up an "invalid argument" error, as if the page doesn't know the value it's working with is an array (Despite "print" showing simply "Array"). This is essentially what I have: //Hidden input to be passed to the next page print "<input type=\"hidden\" name=\"price_list\" value=\"$item_list\"> //Code on the second page for the foreach loop extract($_POST); foreach($price_list as $name=>$price) { ... } But I am simply given "Warning: Invalid argument supplied for foreach() in /home/cut/mg299/public_html/PHP/invoice.php on line 17". The array works fine, as I can iterate on the previous page, and other values are parsed fine to this second page. Do I need to 'reinitialise' this array value?

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  • Smart Help with UPK

    - by [email protected]
    A short lesson on how awesome Smart Help is. In Oracle UPK speak, there are targeted and non-targeted applications. Targeted applications are Oracle EBS, PeopleSoft, Siebel, JD Edwards, SAP and a few others. Non-targeted applications are either custom built or other third party off the shelf applications. For most targeted applications you'll see better object recognition (during recording) and also Help Integration for that application. Help integration means that someone technical modifies the help link in your application to call up the UPK content that has been created. If you have seen this presented before, this is usually where the term context sensitive help is mentioned and the Do It mode shows off. The fact that UPK builds context sensitive help for its targeted applications automatically is awesome enough, but there is a whole new world out there and it's called "custom and\or third party apps." For the purposes of Smart Help and this discussion, I'm talking about the browser based applications. How does UPK support these apps? It used to be that you had to have your vendor try to modify the Help link to point to UPK or if your company had control over the applications configuration menus, then you get someone on your team to modify this for you. But as you start to use UPK for more than one, two or three applications, the administration of this starts to become daunting. Multiple administrators, multiple player packages, multiple call points, multiple break points, help doesn't always work the same way for every application (picture the black white infomercial with an IT person trying to configure a bunch of wires or something funny like that). Introducing Smart Help! (in color of course, new IT person, probably wearing a blue shirt and smiling). Smart help eliminates the need to configure multiple browser help integration points, and adds a icon to the users browser itself. You're using your browser to read this now correct? Look up at the icons on your browser, you have the home link icon, print icon, maybe an RSS feed icon. Smart Help is icon that gets added to the users browser just like the others. When you click it, it first recognizes which application you're in and then finds the UPK created material for you and returns the best possible match, for (hold on to your seat now) both targeted and non-targeted applications (browser based applications). But wait, there's more. It does this automatically! You don't have to do anything! All you have to do is record content, UPK and Smart Help do the rest! This technology is not new. There are customers out there today that use this for as many as six applications! The real hero here is SMART MATCH. Smart match is the technology that's used to determine which application you're in and where you are when you click on Smart Help. We'll save that for a one-on-one conversation. Like most other awesome features of UPK, it ships with the product. All you have to do is turn it on. To learn more about Smart Help, Smart Match, Targeted and Non-Targeted applications, contact your UPK Sales Consultant or me directly at [email protected]

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  • How to Sync Any Browser’s Bookmarks With Your iPad or iPhone

    - by Chris Hoffman
    Apple makes it easy to synchronize bookmarks between the Safari browser on a Mac and the Safari browser on iOS, but you don’t have to use Safari — or a Mac — to sync your bookmarks back and forth. You can do this with any browser. Whether you’re using Chrome, Firefox, or even Internet Explorer, there’s a way to sync your browser bookmarks so you can access your same bookmarks on your iPad. Safari on a Mac Apple’s iCloud service is the officially supported way to sync data with your iPad or iPhone. It’s included on Macs, but Apple also offers similar iCloud bookmark syncing features for Windows. On a Mac, this should be enabled by default. To check whether it’s enabled, you can launch the System Preferences panel on your Mac, open the iCloud preferences panel, and ensure the Safari option is checked. If you’re using Safari on Windows — well, you shouldn’t be. Apple is no longer updating Safari for Windows. iCloud allows you to synchronize bookmarks between other browsers on your Windows system and Safari on your iOS device, so Safari isn’t necessary. Internet Explorer, Firefox, or Chrome via iCloud To get started, download Apple’s iCloud Control Panel application for Windows and install it. Launch the iCloud Control Panel and log in with the same iCloud account (Apple ID) you use on your iPad or iPhone. You’ll be able to enable Bookmark syncing with Internet Explorer, Firefox, or Chrome. Click the Options button to select the browser you want to synchronize bookmarks with. (Note that bookmarks are called “favorites” in Internet Explorer.) You’ll be able to access your synced bookmarks in the Safari browser on your iPad or iPhone, and they’ll sync back and forth automatically over the Internet. Google Chrome Sync Google Chrome also has its own built-in sync feature and Google provides an official Chrome app for iPad and iPhone. If you’re a Chrome user, you can set up Chrome Sync on your desktop version of Chrome — you should already have this enabled if you have logged into your Chrome browser. You can check if this Chrome Sync is enabled by opening Chrome’s settings screen and seeing whether you’re signed in. Click the Advanced sync settings button and ensure bookmark syncing is enabled. Once you have Chrome Sync set up, you can install the Chrome app from the App Store and sign in with the same Google account. Your bookmarks, as well as other data like your open browser tabs, will automatically sync. This can be a better solution because the Chrome browser is available for so many platforms and you gain the ability to synchronize other browser data, such as your open browser tabs, between your devices. Unfortunately, the Chrome browser is slower than Apple’s own Safari browser on iPad and iPhone because of the way Apple limits third-party browsers, so using it involves a trade-off. Manual Bookmark Sync in iTunes iTunes also allows you to sync bookmarks between your computer and your iPad or iPhone. It does this the old-fashioned way, by initiating a manual sync when your device is plugged in via USB. To access this option, connect your device to your computer, select the device in iTunes, and click the Info tab. This is the more outdated way of synchronizing your bookmarks. This feature may be useful if you want to create a one-time copy of your bookmarks from your PC, but it’s nowhere near ideal for regular syncing. You don’t have to use this feature, just as you really don’t have to use iTunes anymore. In fact, this option is unavailable if you’ve set up iCloud syncing in iTunes. After you set up bookmark syncing via iCloud or Chrome Sync, bookmarks will sync immediately after you save, remove, or edit them.     

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  • The 20 Most Important Keyboard Shortcuts For Windows PCs

    - by Chris Hoffman
    Keyboard shortcuts are practically essential for using any type of PC. They’ll speed up almost everything you do. But long lists of keyboard shortcuts can quickly become overwhelming if you’re just getting started. This list will cover the most useful keyboard shortcuts that every Windows user should know. If you haven’t used keyboard shortcuts much, these will show you just how useful keyboard shortcuts can be. Windows Key + Search The Windows key is particularly important on Windows 8 — especially before Windows 8.1 — because it allows you to quickly return to the Start screen. On Windows 7, it opens the Start menu. Either way, you can start typing immediately after you press the Windows key to search for programs, settings, and files. For example, if you want to launch Firefox, you can press the Windows key, start typing the word Firefox, and press Enter when the Firefox shortcut appears. It’s a quick way to launch programs, open files, and locate Control Panel options without even touching your mouse and without digging through a cluttered Start menu. You can also use the arrow keys to select the shortcut you want to launch before pressing Enter. Copy, Cut, Paste Copy, Cut, and Paste are extremely important keyboard shortcuts for text-editing. If you do any typing on your computer, you probably use them. These options can be accessed using the mouse, either by right-clicking on selected text or opening the application’s Edit menu, but this is the slowest way to do it. After selecting some text, press Ctrl+C to copy it or Ctrl+X to cut it. Position the cursor where you want the text and use Ctrl+V to paste it. These shortcuts can save you a huge amount of time over using the mouse. Search the Current Page or File To quickly perform a search in the current application — whether you’re in a web browser, PDF viewer, document editor, or almost any other type of application — press Ctrl+F. The application’s search (or “Find”) feature will pop up, and you can instantly start typing a phrase you want to search for. You can generally press Enter to  go to the next appearance of the word or phrase in the document, quickly searching through it for what you’re interested in. Switch Between Applications and Tabs Rather than clicking buttons on your taskbar, Alt+Tab is a very quick way to switch between running applications. Windows orders the list of open windows by the order you accessed them, so if you’re only using two different applications, you can just press Alt+Tab to quickly switch between them. If switching between more than two windows, you’ll have to hold the Alt key and press Tab repeatedly to toggle through the list of open windows. If you miss the window you want, you can always press Alt+Shift+Tab to move through the list in reverse. To move between tabs in an application — such as the browser tabs in your web browser — press Ctrl+Tab. Ctrl+Shift+Tab will move through tabs in reverse. Quickly Print If you’re the kind of person who still prints things, you can quickly open the print window by pressing Ctrl+P. This can be faster than hunting down the Print option in every program you want to print something from. Basic Browser Shortcuts Web browser shortcuts can save you tons of time, too. Ctrl+T is a very useful one, as it will open a new tab with the address bar focused, so you can quickly press Ctrl +T, type a search phrase or web address, and press Enter to go there. To go back or forward while browsing, hold the Ctrl key and press the left or right arrow keys. If you’d just like to focus your web browser’s address bar so you can type a new web address or search without opening a new tab, press Ctrl + L. You can then start typing something and press Enter. Close Tabs and Windows To quickly close the current application, press Alt+F4. This works on the desktop and even in new Windows 8-style applications. To quickly close the current browser tab or document, press Ctrl+W. This will often close the current window if there are no other tabs open. Lock Your Computer When you’re done using your computer and want to step away, you may want to lock it. People won’t be able to log in and access your desktop unless they know your password. You can do this from the Start menu or Start screen, but the fastest way to lock your screen is by quickly pressing Windows Key + L before you get up. Access the Task Manager Ctrl+Alt+Delete will take you to a screen that allows you to quickly launch the Task Manager or perform other operations, such as signing out. This is particularly useful because if can be used to recover from situations where your computer doesn’t appear responsive or isn’t accepting input. For example, if a full-screen game becomes unresponsive, Ctrl+Alt+Delete will often allow you to escape from it and end it via the Task Manager. Windows 8 Shortcuts On Windows 8 PCs, there are other very important keyboard shortcuts. Windows Key + C will open your Charms bar, while Windows Key + Tab will open the new App Switcher. These keyboard shortcuts will allow you to avoid the hot corners, which can be tedious to use with a mouse. On the desktop side, Windows Key + D will take you back to the desktop from anywhere. Windows Key + X will open a special “power user menu” that gives you quick access to options that are hidden in the new Windows 8 interface, including Shut Down, Restart, and Control Panel. If you’re interested in learning more keyboard shortcuts, be sure to check our longer lists of 47 keyboard shortcuts that work in all web browsers and 42+ keyboard shortcuts to speed up text-editing. Image Credit: Jeroen Bennink on Flickr     

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  • Beginner Geek: How to Use Multiple Monitors to Be More Productive

    - by Chris Hoffman
    Many people swear by multiple monitors, whether they’re geeks or just people who need to be productive. Why use just one monitor when you can use two or more and see more at once? Additional monitors allow you to expand your desktop, getting more screen real estate for your open programs. Windows makes it very easy to set up additional monitors, and your computer probably has the necessary ports. Why Use Multiple Monitors? Multiple monitors give you more screen real estate. Hook up multiple monitors to a computer and you can move your mouse back and forth between them, dragging programs between monitors as if you had an extra-large desktop. People who swear by multiple monitors use them to display multiple things on-screen at a time. Rather than Alt+Tabbing and task switching to glance at another window, you can just look over with your eyes and then look back to the program you’re using. Some examples of use cases for multiple monitors include: Coders who want to view their code on one display with the other display reserved for documentation. They can just glance over at the documentation and look back at their primary workspace. Anyone who needs to view something while working. Viewing a web page while writing an email, viewing another document while writing an something, or working with two large spreadsheets and having both visible at once. People who need to keep an eye on information, whether it’s email or up-to-date statistics, while working. Gamers who want to see more of the game world, extending the game across multiple displays. Geeks who just want to watch a video on one screen while doing something else on the other screen. Hooking Up Multiple Monitors Hooking up an additional monitor to your computer should be very simple. Most new computers come with more than one port for a monitor — whether DVI, HDMI, the older VGA port, or a mix. Some computers may include splitter cables that allow you to connect multiple monitors to a single port. Most laptops also come with ports that allow you to hook up an external monitor. Plug a monitor into your laptop’s DVI or VGA port and Windows will allow you to use both your laptop’s integrated display and the external monitor at once. This all depends on the ports your computer has and how your monitor connects. If you have an old VGA monitor lying around and you have a modern laptop with only DVI or HDMI connectors, you may need an adapter that allows you to plug your monitor’s VGA cable into the new port. Be sure to take your computer’s ports into account before you get another monitor for it. Managing Multiple Monitors With Windows Windows makes using multiple monitors easy. Just plug the monitor into the appropriate port on your computer and Windows should automatically extend your desktop onto it. You can now just drag and drop windows between monitors. To control how this works, right-click your Windows desktop and select Screen resolution. Choose an option from the Multiple displays box. The Extend option extends your desktop onto an additional monitor, while the other options are mainly useful if you’re using an additional monitor for presentations — for example, you could mirror your laptop’s desktop onto a large monitor or blank your laptop’s screen while it’s connected to a larger display. Be sure to arrange your monitors properly so Windows understands how your monitors are physically positioned. Windows 8 allows you to extend your Windows taskbar across multiple monitors. You’ll find this option in the taskbar’s options window — right-click the taskbar and select Properties. You can also choose where you want Windows to display taskbar buttons for open programs — on any monitor’s taskbar or only on the taskbar on the associated monitor. Windows 7 doesn’t have these convenient features built-in — your second monitor won’t have a taskbar. To extend your taskbar onto an additional monitor, you’ll need a third-party utility like the free and open-source Dual Monitor Taskbar. If you just have a single monitor, you can also use the Aero Snap feature to quickly place multiple Windows applications side by side. On Windows 7 or 8, press Windows Key + Left or Windows Key + Right to make the current window take up the left or right half of your display. You could also drag any window’s title bar to the left or right edges of your screen and release the window. How useful this feature is depends on your monitor’s size and resolution. If you have a large, high-resolution monitor, it will allow you to see a lot. If you have a smaller laptop monitor with the seemingly standard 1366×768 resolution, you won’t be able to see much of each snapped window at once, so snapping windows may not be practical. Image Credit: Chance Reecher on Flickr, Camp Atterbury Joint Maneuver Training Center on Flickr, Xavier Caballe on Flickr     

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  • Online ALTER TABLE in MySQL 5.6

    - by Marko Mäkelä
    This is the low-level view of data dictionary language (DDL) operations in the InnoDB storage engine in MySQL 5.6. John Russell gave a more high-level view in his blog post April 2012 Labs Release – Online DDL Improvements. MySQL before the InnoDB Plugin Traditionally, the MySQL storage engine interface has taken a minimalistic approach to data definition language. The only natively supported operations were CREATE TABLE, DROP TABLE and RENAME TABLE. Consider the following example: CREATE TABLE t(a INT); INSERT INTO t VALUES (1),(2),(3); CREATE INDEX a ON t(a); DROP TABLE t; The CREATE INDEX statement would be executed roughly as follows: CREATE TABLE temp(a INT, INDEX(a)); INSERT INTO temp SELECT * FROM t; RENAME TABLE t TO temp2; RENAME TABLE temp TO t; DROP TABLE temp2; You could imagine that the database could crash when copying all rows from the original table to the new one. For example, it could run out of file space. Then, on restart, InnoDB would roll back the huge INSERT transaction. To fix things a little, a hack was added to ha_innobase::write_row for committing the transaction every 10,000 rows. Still, it was frustrating that even a simple DROP INDEX would make the table unavailable for modifications for a long time. Fast Index Creation in the InnoDB Plugin of MySQL 5.1 MySQL 5.1 introduced a new interface for CREATE INDEX and DROP INDEX. The old table-copying approach can still be forced by SET old_alter_table=0. This interface is used in MySQL 5.5 and in the InnoDB Plugin for MySQL 5.1. Apart from the ability to do a quick DROP INDEX, the main advantage is that InnoDB will execute a merge-sort algorithm before inserting the index records into each index that is being created. This should speed up the insert into the secondary index B-trees and potentially result in a better B-tree fill factor. The 5.1 ALTER TABLE interface was not perfect. For example, DROP FOREIGN KEY still invoked the table copy. Renaming columns could conflict with InnoDB foreign key constraints. Combining ADD KEY and DROP KEY in ALTER TABLE was problematic and not atomic inside the storage engine. The ALTER TABLE interface in MySQL 5.6 The ALTER TABLE storage engine interface was completely rewritten in MySQL 5.6. Instead of introducing a method call for every conceivable operation, MySQL 5.6 introduced a handful of methods, and data structures that keep track of the requested changes. In MySQL 5.6, online ALTER TABLE operation can be requested by specifying LOCK=NONE. Also LOCK=SHARED and LOCK=EXCLUSIVE are available. The old-style table copying can be requested by ALGORITHM=COPY. That one will require at least LOCK=SHARED. From the InnoDB point of view, anything that is possible with LOCK=EXCLUSIVE is also possible with LOCK=SHARED. Most ALGORITHM=INPLACE operations inside InnoDB can be executed online (LOCK=NONE). InnoDB will always require an exclusive table lock in two phases of the operation. The execution phases are tied to a number of methods: handler::check_if_supported_inplace_alter Checks if the storage engine can perform all requested operations, and if so, what kind of locking is needed. handler::prepare_inplace_alter_table InnoDB uses this method to set up the data dictionary cache for upcoming CREATE INDEX operation. We need stubs for the new indexes, so that we can keep track of changes to the table during online index creation. Also, crash recovery would drop any indexes that were incomplete at the time of the crash. handler::inplace_alter_table In InnoDB, this method is used for creating secondary indexes or for rebuilding the table. This is the ‘main’ phase that can be executed online (with concurrent writes to the table). handler::commit_inplace_alter_table This is where the operation is committed or rolled back. Here, InnoDB would drop any indexes, rename any columns, drop or add foreign keys, and finalize a table rebuild or index creation. It would also discard any logs that were set up for online index creation or table rebuild. The prepare and commit phases require an exclusive lock, blocking all access to the table. If MySQL times out while upgrading the table meta-data lock for the commit phase, it will roll back the ALTER TABLE operation. In MySQL 5.6, data definition language operations are still not fully atomic, because the data dictionary is split. Part of it is inside InnoDB data dictionary tables. Part of the information is only available in the *.frm file, which is not covered by any crash recovery log. But, there is a single commit phase inside the storage engine. Online Secondary Index Creation It may occur that an index needs to be created on a new column to speed up queries. But, it may be unacceptable to block modifications on the table while creating the index. It turns out that it is conceptually not so hard to support online index creation. All we need is some more execution phases: Set up a stub for the index, for logging changes. Scan the table for index records. Sort the index records. Bulk load the index records. Apply the logged changes. Replace the stub with the actual index. Threads that modify the table will log the operations to the logs of each index that is being created. Errors, such as log overflow or uniqueness violations, will only be flagged by the ALTER TABLE thread. The log is conceptually similar to the InnoDB change buffer. The bulk load of index records will bypass record locking. We still generate redo log for writing the index pages. It would suffice to log page allocations only, and to flush the index pages from the buffer pool to the file system upon completion. Native ALTER TABLE Starting with MySQL 5.6, InnoDB supports most ALTER TABLE operations natively. The notable exceptions are changes to the column type, ADD FOREIGN KEY except when foreign_key_checks=0, and changes to tables that contain FULLTEXT indexes. The keyword ALGORITHM=INPLACE is somewhat misleading, because certain operations cannot be performed in-place. For example, changing the ROW_FORMAT of a table requires a rebuild. Online operation (LOCK=NONE) is not allowed in the following cases: when adding an AUTO_INCREMENT column, when the table contains FULLTEXT indexes or a hidden FTS_DOC_ID column, or when there are FOREIGN KEY constraints referring to the table, with ON…CASCADE or ON…SET NULL option. The FOREIGN KEY limitations are needed, because MySQL does not acquire meta-data locks on the child or parent tables when executing SQL statements. Theoretically, InnoDB could support operations like ADD COLUMN and DROP COLUMN in-place, by lazily converting the table to a newer format. This would require that the data dictionary keep multiple versions of the table definition. For simplicity, we will copy the entire table, even for DROP COLUMN. The bulk copying of the table will bypass record locking and undo logging. For facilitating online operation, a temporary log will be associated with the clustered index of table. Threads that modify the table will also write the changes to the log. When altering the table, we skip all records that have been marked for deletion. In this way, we can simply discard any undo log records that were not yet purged from the original table. Off-page columns, or BLOBs, are an important consideration. We suspend the purge of delete-marked records if it would free any off-page columns from the old table. This is because the BLOBs can be needed when applying changes from the log. We have special logging for handling the ROLLBACK of an INSERT that inserted new off-page columns. This is because the columns will be freed at rollback.

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  • Accessing hidden SharePoint list

    - by BeraCim
    Hi all: Currently I have a few lists in my SharePoint site that has been hidden from the user (via the hidden property which was set programmatically). I was wondering whether there are any special urls/web or ways to access those lists? e.g. {site}/lists/hiddenList or something similar? Thanks.

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