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• High Availability Clustering and Virtualization

  - by tmcallaghan

  I'm trying to understand how the various virtualization vendors (specifically Amazon EC2, but also VMware and Xen) enable software vendors to provide a real HA solution in the environment where the servers are virtualized. Specifically, if I'm running any HA application (exchange, databases, etc) I need to ensure that my redundant virtual "servers" aren't located on the same physical server. Using in-house virtualization solutions (VMware, Xen, etc) I can provision accordingly as well as check the virtual - physical arrangement. I could, however, accidentally "vmotion" to the same physical hardware. With EC2, I don't even have the ability at provision time to select different physical servers. Since their Cluster Compute Instances are 1 virtual server per physical server it seems to be the only way to guarantee I don't have a false sense of redundancy. Any ideas or thoughts would be helpful. What are others doing about this problem? If the vendors provided an API where I could get something as simple as a unique physical system identifier I could at least know if I'm going to have an issue. -Tim

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• excel autocomplete combo-box with on-selection event

  - by IttayD

  I have an excel sheet for groceries. One column is the name, another is whether to buy it or not (checkbox) and another is the amount. I'd like to have a widget in the top row so that I start typing an item's name and it shows a list of matching items that I can select from, or if I continue to type and there's only one item, completes its name. When the last item is selected, other widgets show the amount, which I can edit and clicking 'check' will check the item in the list. I know this is kind of very specific, but am hoping someone can at least get me started. Thank you, Ittay

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• How come Core i7 (desktop) dominates Xeon (server)?

  - by grant tailor

  I have been using this performance benchmark results to select what CPUs to use on my web server and to my surprise, looks like Core i7 CPUs dominates the list pushing Xeon CPUs into the bush. Why is this? Why is Intel making the Core i7 perform better than the Xeon. Are Desktop CPUs supposed to perform better than server grade Xeon CPUs? I really don't get this and will like to know what you think or why this is so. Also I am thinking about getting a new web server and thinking between the i7-2600 VS the Xeon E3-1245. The i7-2600 is higher up in the performance benchmark but I am thinking the Xeon E3-1245 is server grade. What do you guys think? Should I go for the i7-2600? Or is the Xeon E3-1245 a server grade CPU for a reason?

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• Chrome : type in textboxes instead of selecting them

  - by rlb.usa

  Hi guys, not sure what is happening but quite often i go to highlight/doubleclick text in a textbox in Google's Chrome browser, and somehow the textbox itself gets selected. I have to redo my selection so it selects the text inside... It is hard to explain but is it possible that whenever I have a textbox selected, when I type, the text I type goes in the box (instead of nowhere)? It seems like a rather uh, silly/stupid question, but it would save me time and make my browsing more efficient. I can work a mouse and type just as well as anyone else, Chrome is the only browser I have trouble in where it likes to select the textboxes instead of the text inside the textboxes. I love Chrome.

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• Windows 7 Task bar + Chrome tab Issue

  - by mikelbring

  When you have say more then one file or something open or window (not tabs), the windows 7 task bar combines or stacks them on top of each other. Well my chrome started to do that with tabs. It looks like I have more then one chrome window open, but its just tabs all in one window. So when I click on the stacked chrome on my task bar it shows a preview of each tab and then goes to that tab. I would much rather have it be one chrome icon rather then stacked and then I can select my tab. The preview for the many tabs I have open is annoying me. I know this has to be something I accidental turned on because it did not do this before nor does it do it on my other computers. Thank you.

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• Arcemu Wow 3.3.5 sql error [on hold]

  - by user3691628

  I'm trying to set up a private arcemu 3.3.5 wow server to play with my 3 friends, but after I did all things great, I get this annoying error: [05-30-2014][15:14][Arcemu][2014-05-30 15:14:16] [05-30-2014][15:14][Arcemu]ArcEmu 4.0-TRUNK a816536/Debug-Win32-X86 :: World Server [05-30-2014][15:14][Arcemu]Sql query failed due to [Table 'logon.world_db_version' doesn't exist], Query: [SELECT LastUpdate FROM world_db_version;] [05-30-2014][15:14][Arcemu]Database: World database is missing the table `world_db_version` OR the table doesn't contain any rows. Can't validate database version. Exiting. [05-30-2014][15:14][Arcemu]Database: You may need to update your database Please help me guys, I really worked 4 hours to make this server good and now this error make me desperate... I tried to run the lattest update for world_db_version. Ask me if you need something else.

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• How do I cut and paste between different files using emacs?

  - by JStarx

  I'm running OSX 10.6.8. Lets say I have two terminal windows open and in each window I begin editing a different file using emacs. In the first file I select some text and then copy it (M-w), and in the second file I then try and paste it (C-y). I thought this would paste what I copied from the other file but instead I get the error message "previous command was not a yank". Those commands work just fine for copying and pasting within a single file, how do I copy and paste between different files?

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• How come i7 (desktop) dominates Xeon (server)?

  - by grant tailor

  I have been using this performance benchmark results http://www.cpubenchmark.net/high_end_cpus.html to select what CPUs to use on my web server and to my surprise...looks like i7 CPUs dominates the list pushing Xeon CPUs into the bush. Why is this? Why is Intel making the i7 perform better than the Xeon. Are Desktop CPUs supposed to perform better than server grade Xeon CPUs? I really don't get this and will like to know what you think or why this is so. Also i am thinking about getting a new web server and thinking between the i7-2600 VS the Xeon E3-1245. The i7-2600 is higher up in the performance benchmark but i am thinking the Xeon E3-1245 is server grade...so what do you guys think? Should i go for the i7-2600? Or is the Xeon E3-1245 a server grade CPU for a reason?

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• Lenovo ThinkPad W530 problem to activate the optical/DVD drive

  - by Marko Apfel

  Problem Sometimes my notebook shows the optical drive as power off: But the hint there is not changing this state. Solution By looking in the device manager you see the next problem: So open the properties via right mouse click. This gives you the hint to remove the drive first. “Windows cannot use this hardware device because it has been prepared for "safe removal", but it has not been removed from the computer. (Code 47)” Whether you select the comment by dragging the mouse over the the hidden part or pressing the button “Properties”. So we unplug and reinsert the ultrabay. If you think, now the system is working – you are wrong. Now the system is the meaning, that the ultrabay is unplugged. You could verify this by refresh the view in the device panel. Now there is no longer our device. Yet your great gig comes – unplug the ultra bay and reinsert it a second time! After this you could hear with a media inside, that the motor is really started and we have a working device What a difficult birth …

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• Make middle-click close window(s) on unity launcher

  - by humanityANDpeace

  I am looking for a way to achieve this on my 12.04 ubuntu system: Clicking with the middle mouse button on one of the unity launcher icons will close the related windows/programs. At present a middle-button-click causes (when possible) another instance of the same programme to start. There is nothing wrong with that, only I use this less often than I need a quick way to close some programs. The current way is a lengthy 2-click way. Right-click on the icon Select "quit" in the unity-setting in the ccsm (compiz config settings manager) some few things can be changed in the ubuntu unity plugin already. there are other reporst about settings being done in dconf and gconf. What chances are there to tweak the behavior as described above? In Firefox I am used to close tabs by "middle-clicking" on the tabs. In GLX/Cairo-dock I also associate "middle-click" with the close the program. When using ubuntu unity launcher I keep on mistakingly opening new windows, when indeed I wanna close the respective window(s). :(

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• Wireshark Display Filter protocol==TLSV1? (and PacketLength)

  - by NealWalters

  What would the filter expression be to just select the protocols where the protocol = TLSV1? Something obvious like protocol == "TLSV1" or TCP.protocol == "TLSV1" is apparently not the right way. ip.proto == "TLSV1" says "ip.proto cannot accept strings as values" Update - additional tips: Another great but hidden search is on PacketLength: You can add packet length to your display by clicking "Edit Preferences" (menu or icon), and adding the PacketLength as a new column, but to filter on it you have to use the more cryptic: frame.len == ### where ### is your desired number. We were using this to determine how many packets had been sent and/or received, when you filter, the status-bar at the bottom of the screen shows the number of items matching the filter.

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• File must be saved as a copy with this selection?

  - by Mick

  I have created an image in photoshop 7 and am now attempting to save it as a png. I click "Save As" and am presented with a save file dialog with *.PSD selected by default. If I then select *.PNG a yellow triangle with a black exclamation mark appears next to a greyed out box called "Layers" and the message "file must be saved as a copy with this selection" appears. This is confusing me because the image is comprised of only a single layer. How do I resolve this?

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• pine sometimes not update new received emails

  - by Tim

  Hi, I am using pine on a KUbuntu linux email server to check my emails. Most of the time when I am under "Inbox", the list of emails is updated automatically so I don't have to do things like pushing the refresh button when I am under web. But sometimes it does not and I have to type "<" to go to the upper level and then select "Inbox" to enter again into the inbox directory to find out that I do receive new emails that are not shown previously. I was wondering what the problem is? Thanks and regards!

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• Firefox - built in search engine toolbar broken

  - by Victor78

  When I change the order of the search engines (Toolbar - Manage Search Engines - Move up / down - Ok) it changes the order, until I close and reopen the browser. I can't imagine that's the way it's supposed to work. I want it to stay in the order I select. I have no add-ons installed that have anything to do with search engines, nor that add any toolbars. I am not using a customized theme. Apparently this problem is rare, as Googling [ "manage search engine list" ("order reverts" OR "order changes") ] return 0 results. Firefox 3.6.12; Windows XP Pro SP3.

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• Why I'm unable to use up/down arrows in my BIOS?

  - by nexus

  My BIOS is loading and when I wanted to change anything, the up/down arrows aren't working. What might be the problem? I want to change boot options, but I'm unable to select the boot from CD option. My BIOS version is f2.3. Do I need to upgrade it? I need my system for 2 more months continuously and I'm afraid if there might be some problem upgrading. But anyway, what might be the cause for this behavior? For you info I have the pavilion dv6 series laptop, BIOS version: f.23 processer: Intel(R) core(TM) i3 CPU M 370 @ 2.40ghz 2.40GHZ 2.40 GHZ

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• pine sometimes not update new received emails

  - by Tim

  Hi, I am using pine on a KUbuntu linux email server to check my emails. Most of the time when I am under "Inbox", the list of emails is updated automatically so I don't have to do things like pushing the refresh button when I am under web. But sometimes it does not and I have to type "<" to go to the upper level and then select "Inbox" to enter again into the inbox directory to find out that I do receive new emails that are not shown previously. I was wondering what the problem is? Thanks and regards!

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• Windows XP alt-tab: How to restrict options to certain applications, in certain order and exclude others?

  - by Rob

  In Windows XP Alt-tab keypress sequence to select applications, how can I ensure that certain applications always appear, in a certain order, with others always excluded? Background for asking is that most XP-based machines that I am working with on a shop floor present the list of shortcuts in a certain order and certain applications. There is one machine however, that displays an additional application. This is a hindrance to the users of the machines, as the nature of their work is routine and this variation disrupts the remembered sequence, "disrupts their flow". Thoughts? Being a good superuser, I research first before asking, and I found: Applications randomly alt-tab? (especially full screen games) Restore Alt-Tab behavior so that minimizing an app once again moves it to the end? (2. looks close to the control I need, but would need more finer, preciser control over what appears in the selection). Suggestions? (Thanks in advance.)

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• Printer demands specific USB port

  - by snitzr

  My HP laptop has 3 USB ports. When I add my printer driver by plugging into one of those ports, the driver installs fine. Problem: I have to install 3 identical drivers. One for each USB port. Depending on what USB port I have the printer plugged into, I have to pick the driver for that port. Question: How do I print to any of the three ports automatically based on what port the printer is in? Further into: In Devices and Printers Printer Properties Ports... I cannot select more than one port for a printer driver to print to.

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• How can I get Windows 7 to switch audio from a monitor (with built-in speakers) to headphones when t

  - by tnorthcutt

  I have an HP dv5t laptop running Windows 7 64 bit with an Acer H235H monitor connected to it via an HDMI cable. The monitor has built-in speakers, which are a huge improvement over the laptop's speakers. However, when I want to use headphones, right now, I have to connect them to the laptop, then right-click the sound icon in the task bar, select Playback Devices, right click the monitor, and disable it. Is there any way to get Windows 7 to automatically switch the output to the headphones when they're plugged in? That's the behavior that happens without the monitor attached (i.e. it will switch from the laptop speakers to headphones when headphones are plugged in). I have the same issue with a Sony Vaio laptop running Windows 7 64-bit and an identical monitor, for reference.

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• If and else condition not working properly in xna [closed]

  - by user1090751

  I am developing chess like game and i wanted to show error message if user try to place any player inside the box which is not empty. For example in certain place if there is empty then the object(2d object) is placed else it should show error message. However in my program it is showing message everytime i.e when i place object on empty place then also it is showing error message. Please see the below code: protected override void Update(GameTime gameTime) { // Allows the game to exit if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed) this.Exit(); // TODO: Add your update logic here for (int i = 0; i < 25; i++) { MouseState mouseState; mouseDiBack = false; mouseState = Mouse.GetState(); if (new Rectangle(mouseState.X, mouseState.Y, 1, 1).Intersects(rect_arr[i])) { background_color_arr[i] = Color.Red; } else { background_color_arr[i] = Color.White; } if (new Rectangle(mouseState.X, mouseState.Y, 1, 1).Intersects(rect_arr[i]) && (mouseState.LeftButton == ButtonState.Pressed)) { if (boxes[i] != "goat" && boxes[i] != "tiger") { place = i; if (turn == "goat") { boxes[i] = "goat"; turn = "tiger"; } else { boxes[i] = "tiger"; turn = "goat"; } } else { errMsg = "This " + i + " block is not empty to place " + turn + ". Please select empty block!!"; } } } base.Update(gameTime); }

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• Word 2010, how to update protected document

  - by Seth

  The document has one "Section Break" with e.g. "Text Form Fields" above. To make this Form Field work properly I use "Restrict Editing", allow "Filling in Forms", "Select Sections" and then protect Section 1. Then "Start Enforcing Protection". Now when the document is protected above the Section Break you can't use CTRL-Aand F9 to make an update of the fields, etc. of the document below the Section Break. Is there any solution for this problem?

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• Almost all of my programs arn't recognized anymore.

  - by alaster

  I had a virus on my computer and was able to remove it, however, now almost all of my programs won't work. Even trying to open freecell pulls up the "select a software to run this in" window. I can't even install software anymore because after downloading a setup file and clicking on it, it too opens the "choose a program to run this in" window. I'm trying to find a way to fix without reinstalling the OS. Does anyone know a way to restore the file/files that are missing that are causing this problem without starting over?

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• Find visually similar images automatically?

  - by TERACytE

  I have a collection of images which is updated regularly that I'd like to group. Rather than reviewing every single image in the collection, I'd like to run an automated tool that pre-groups the images. Adobe PhotoShop Elements has a "Find Visually Similar photos" feature which works well, but it requires manually importing the images first, then I have to select an image each time I need Photoshop to search for images that are visually similar. I do not need a de-duping program since the images are never identical. Is there anything out there that can provide what I'm looking for?

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• Mysql loses its root password

  - by RubyDev

  I am having a strange problem, my mysql loses/resets the root password automatically. By which I mean that it resets it to none. It has happened twice this month. I am worried that it can be a security issue as data is open waiting only for someone trying no password! Here is the version: mysql --version mysql Ver 14.14 Distrib 5.1.56, for redhat-linux-gnu (i386) using readline 5.1 Any help would be appreciated. Update: Output of select user, host, password from mysql.user; how it looks after the password got reset | root | localhost | | root | 127.0.0.1 | | | localhost | | | admin | localhost | ################################# | (I have removed the actual output with #) So all the passwords are blank, except for for another user named 'admin'

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• Is there any way a user can view or copy GUI controls' properties at runtime?

  - by jqngrc

  Here are two examples of what I mean: I am sure you all too have experienced this frustration before. A dialog box opens that displays only part of a long string (e.g. a file path), but won't allow you to select the text so you can see the full string. Neither it will resize upon window resizing—which is unusual among Windows dialog boxes. The text is hidden, period. Copying a very long drop-down list control contents to a text file. Do you know any way to solve these problems?

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