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• How do I redirect www and non but not IP

  - by Chad T Parson

  I am trying to redirect www.domain.com or domain.com to www.domain.com/temp.html I am using the following code: RewriteCond %{HTTP_HOST} ^.*$ RewriteRule ^/?$ "http\:\/\/www\.domain\.com\/temp\.html" [R=301,L] That works however I do not want to redirect IP. So if someone types in the static IP of the domain then I do not want them to be redirected to www.domain.com/temp.html Anyone have the code to take care of this?

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• Bash does not remember programs with non 0 exit status in history

  - by Amigable Clark Kant

  I enter a command. It fails. I press arrow up, modify something and enter it again ... hold it right there. It used to work like that. Now it's more like: I enter a command. It fails. I press arrow up, get the last command which didn't fail, likely "ls" or something useless and I type the whole thing again back by hand. What happened? It wasn't always like this. But it's quite some time since this behavior changed, I'll give you that. Some years ago, at least. How do I put some sanity back into my bash prompt?

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• Nautilus bookmarks and smb shares work with non-root user

  - by Enrique

  I'm having a problem with Nautilus in Ubuntu 10.10 When I open Nautilus as common user, it shows bookmarks and the bookmarks that point to smb windows shares work fine. However, if I start Nautilus as root, it does not show bookmarks, and if I try to browse a smb share directly (by pressing Ctrl+L and inserting an address like smb://[email protected]/backups/) it doesn't work and gives me an error that it couldn't be found.

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• 2D non-tile based map editor

  - by user5468

  I am currently developing a relatively simple 2D, topdown oriented adventure game for the iPhone and was wondering what would be the easiest way to create the maps for my game. I figured I would need some kind of visual editor that would give me immediate feedback and would allow me to place all objects in the world exactly where I want them. I could then load the saved representation of the world I create in the editor in my game. So, I am looking for a simple map editor that allows me to do this. All the objects in my game are simply textured rectangles build up from two triangles. All I need to be able to do is position different rectangles/objects in the map, and give them a texture. I am using texture atlases, so it would be useful to be able to assign portions of textures to the objects. I then need to be able to extract all the objects from the saved representation of my maps, together with the name/identifier of the texture(atlas) they use, and the area of the texture atlas. I have looked at some tile-based map editors like Tiled and Ogmo, but they don't seem to be able to do what I want. Any suggestions? EDIT: a more concrete example: something like the GameMaker level editor, but then with added export functionality in a handy format.

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• dreamweaver disable "language for non unicode programs" detection

  - by YuriKolovsky

  Dreamweaver CS4 auto-detects the language for non unicode programs in windows, in my case it is russian, and conviniently sets the default encoding to be western european instead of the much preferred utf-8, it also changes several bits of text in DW into russian. how do i disable this detection and maintain Dreamweaver in full english? (without having to change the language for non-unicode programs in windows)

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• Does tempdb Get Recreated From model at Startup?

  - by Jonathan Kehayias

  In my last post Does the tempdb Log file get Zero Initialized at Startup? I questioned whether or not tempdb is actually created from the model database or not at startup.  There is actually an easy way to prove that this statement, at least internally to the tempdb database is in fact TRUE.  Many thanks go out to Bob Ward (Blog | Twitter) for pointing this out after trading emails with him. To validate that tempdb is actually copied at startup from the model database, all that is necessary...(read more)

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• How to change color AND width of non overlay scrollbars in Ubuntu 12.04

  - by Chuqui

  I know many people have complained about the almost invisible and not usable scrollbars in recent versions of Ubuntu, even after removing or disabling the default overlay scrollbars. I wonder how can I easily change their color AND width. I have a 13.3 inches monitor with a 1600*900 resolution and I can barely see them, as you can see in these images: I already changed Firefox, LibreOffice and some other software's scrollbars using GNOME Color Chooser: By the way, I'm using Unity. Thanks!

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• How to create an Access database by using ADOX and Visual C# .NET

  - by SAMIR BHOGAYTA

  Build an Access Database 1. Open a new Visual C# .NET console application. 2. In Solution Explorer, right-click the References node and select Add Reference. 3. On the COM tab, select Microsoft ADO Ext. 2.7 for DDL and Security, click Select to add it to the Selected Components, and then click OK. 4. Delete all of the code from the code window for Class1.cs. 5. Paste the following code into the code window: using System; using ADOX; private void btnCreate_Click(object sender, EventArgs e) { ADOX.CatalogClass cat = new ADOX.CatalogClass(); cat.Create("Provider=Microsoft.Jet.OLEDB.4.0;" +"Data Source=D:\\NewMDB.mdb;" +"Jet OLEDB:Engine Type=5"); MessageBox.Show("Database Created Successfully"); cat = null; }

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• Is there a "rigorous" method for choosing a database?

  - by Andrew Martin

  I'm not experienced with NoSQL, but one person on my team is calling for its use. I believe our data and its usage isn't optimal for a NoSQL implementation. However, my understanding is based off reading various threads on various websties. I'd like to get some stronger evidence as to who's correct. My question is therefore, "Is there a technique for estimating the performance and requirements of a certain database, that I could use to confirm or modify my intuitions?". Is there, for example, a good book for calculating the performance of equivalent MongoDB/MySQL schema? Is the only really reliable option to build the whole thing and take metrics?

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• In Ubuntu 13.10, none of the hotkeys of LibreOffice works in non-English keyboard layout

  - by maqtanim

  In Ubuntu 13.10, the hotkeys/shortcut-keys (Ctrl+b, Ctrl+s etc) in LibreOffice are language dependent and work in English language only. While writing in any other language (i.e. any Cyrillic and/or any Bengali etc) it's impossible to use hotkeys, they just don't do anything. Switching to English input language enable hotkeys once again. This is very frustrating as user needs to switch language to save document, to make it bold, or italic, etc. This was not experienced in Ubuntu 13.04. Steps to reproduce: System Settings Text Entry. Add another keyboard layout beside English [In my case it is Bengali (Probhat)] Now launch Writer. Switch the keyboard layout from English (US) to Bengali (Probhat) by pressing Ctrl+Space. Press Ctrl+B to change font weight to bold. Error: Font weight does not get changed. Expected: Font weight should change to bold. Note: none other system hotkeys work as expected. I.e. Ctrl+s to save, or Ctrl+b to subscript, or Ctrl+i to italic etc. Workaround: The only way is to - change the keyboard layout to English then press desired hotkey then switch keyboard layout back to Bengali. The issue is critical, as it make writer very slow for keyboard-only typing.

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• What is a non commital approach to software analysis

  - by dsjbirch

  When I think about software analysis the first thing which comes to mind is SSADM and the UML. But, what I want is a high level view of the system before I commit to a programming paradigm. Where am I going wrong? How do I approach a problem in a high level and generic way before I commit to a paradigm? What are the diagrams/tools available to support me? Edit: Some examples of tools that appear to be what I'm after are... A block diagram - http://en.wikipedia.org/wiki/Block_diagram A data flow diagram - http://en.wikipedia.org/wiki/Data_flow_diagram

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• IDC report - Highlights from Oracle OpenWorld 2012: Oracle Database 12c and Oracle Exadata X3

  - by Javier Puerta

  In December 2012, IDC has published "Highlights from Oracle OpenWorld 2012: Oracle Database 12c and Oracle Exadata X3" IDC provides a concise description of the technical and business benefits of Exadata X3 and Oracle Database 12c (focusing on Pluggable Databases) IDC states:  “The announced technologies [X3 & 12c] enhance Oracle’s position as an innovator that continues to enhance the value delivered to customers”   You can download the full report here.  (Oracle has purchased electronic distribution rights to this research note. Electronic rights expire in June 2013.)

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• Installing Perl modules and dependencies with non-root and without CPAN [migrated]

  - by Eegabooga

  I have been writing Perl scripts for my work and the machine that I have been given to work on makes installing Perl modules difficult: We cannot have gcc on my machine for security reasons, so I cannot use CPAN to install modules, for most modules. I do not have access to the root account. Usually, when I want to install a module, I put in a request and I have to wait a day or two before it gets installed. I know that nobody would have a problem with me installing them myself, so to save everyone's time and my sanity I would like to install them myself. It's just an issue of how to best do that. I have talked to various people and they said to use an RPM to install them (to get around not having gcc). However, when trying to install modules from RPMs, it does not handle the dependencies so I would manually need to handle the dependencies, which could take a while. How can I best install Perl modules with these limitations?

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• Version control and data provenance in charts, slides, and marketing materials that derive from code ouput

  - by EMS

  I develop as part of a small team that mostly does research and statistics stuff. But from the output of our code, other teams often create promotional materials, slides, presentations, etc. We run into a big problem because the marketing team (non-programmers) tend to use Excel, Adobe products, or other tools to carry out their work, and just want easy-to-use data formats from us. This leads to data provenance problems. We see email chains with attachments from 6 months ago and someone is saying "Hey, who generated this data. Can you generate more of it with the recent 6 months of results added in?" I want to help the other teams effectively use version control (my team uses it reasonably well for the code, but every other team classically comes up with many excuses to avoid it). For version controlling a software project where the participants are coders, I have some reasonable understanding of best practices and what to do. But for getting a team of marketing professionals to version control marketing materials and associate metadata about the software used to generate the data for the charts, I'm a bit at a loss. Some of the goals I'd like to achieve: Data that supported a material should never be associated with a person. As in, it should never be the case that someone says "Hey Person XYZ, I see you sent me this data as an attachment 6 months ago, can you update it for me?" Rather, data should be associated with the code and code-version of any code that was used to get it, and perhaps a team of many people who may maintain that code. Then references for data updates are about executing a specific piece of code, with a known version number. I'd like this to be a process that works easily with the tech that the marketing team already uses (e.g. Excel files, Adobe file, whatever). I don't want to burden them with needing to learn a bunch of new stuff just to use version control. They are capable folks, so learning something is fine. Ideally they could use our existing version control framework, but there are some issues around that. I think knowing some general best practices will be enough though, and I can handle patching that into the way our stuff works now. Are there any goals I am failing to think about? What are the time-tested ways to do something like this?

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• Database checksum features - redundant? useful?

  - by Eloff

  Just about every mainstream DB has a feature to calculate checksums per page, per sector, or per record. Now for a DB that does full recover after any crash, like PostgreSQL, is a checksum even useful? There will be no data loss as long as the xlog is ok, no matter what kind of corruption happened to the data itself, as the redo log is replayed every committed transaction will be restored. So checksums are useless on restore. Doesn't the filesystem or disk keep checksums anyway to detect corruption? So unless the checksum is per record, all it does is tell you there is corruption - which the OS should be yelling at you the minute you try to read it - so useless in operation? I can't imagine how a checksum can be helpful in any sane database - but since they all use them - I'd say that's just failure of imagination on my part. So how is it useful?

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• Flash Webcam non responsive Ubuntu 11.10

  - by powerbuoy

  I've got the same problem as this gentleman: https://answers.launchpad.net/ubuntu/+source/flashplugin-nonfree/+question/176541 Where the webcam settings / access does not work at all / is completely unresponsive in Ubuntu 11.10. I've tried webcam access in Facebook, Google+, my own code + a number of tutorials/demos and none work. What happens is the settings dialogue is completely unresponsive. Clicking tabs or buttons does nothing. In the question linked to a suggested answer is to run Unity 2D. Unfortunately this does not work for me (the exact same thing happens). I've also tried Gnome 3 which also does not work. Note that it is only the webcam settings that don't work. YouTube videos and annoying banners work just fine. Does anyone know of a workaround for this (except going back to 11.04) or if they've fixed this in 12.04? - also, are any of you experiencing the same thing?

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• Oracle Database In-Memory: Launch in Frankfurt

  - by Carsten Czarski

  Diesmal gibt es etwas Altes ... und etwas Neues. Zuerst das Neue: Am 11. Juni wird Larry Ellison in Redwood Shores die neue, bahnbrechende Oracle Database In-Memory Funktionalität vorstellen. Mit dieser neuen Technologie profitieren Kunden von beschleunigter Datenbankleistung für Analytics, Data Warehousing, Reporting und Online Transaction Processing (OLTP). Nur 6 Tage später - am 17. Juni -  findet, in Frankfurt, der einzige europäische Launch-Event statt. Neben Fachvorträgen, Panelveranstaltung und Demos wird ein Vortrag von Andy Mendelsohn, Head of Database Product Development, vorgesehen. Melden Sie sich heute noch an. Und hier ist das Alte: Wer erinnert sich noch die die HTML DB ...? In den Archiven der APEX Community Seite haben wir ein Video gefunden, welches zeigt, wie man Seiten in der HTML DB für andere Entwickler sperren konnte. Das gibt es heute übrigens auch noch - es sieht nur etwas anders aus. Viel Spaß beim Ansehen.

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• Forwarding non-www domain to other domain with dns

  - by Zen Savona

  Is it possible to forward firstdomain.com to www.seconddomain.com or seconddomain.com using surely dns records? I know how to forward www.firstdomain.com to seconddomain.com (with CNAME). What I am trying to do is move my site from one domain to another (new) one, and not break all the links which use the old domain name. I can't do a 301 redirect as it's hosted on Github Pages and I don't have access to the webserver. Thanks

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• Use TV (hdmi) with non-square pixels

  - by labsin

  I am having a problem when I connect my LG plasma tv (with a native resolution of 1024x768 pixels) to my 12.04 laptop. The pixels (actual pixels, not the signal) of my TV are stretched so it gets his 16:9 ratio. The pixels are rectangular (1.3333x1). Everything I display from my laptop oviously get stretched (4:3 stretched to 16:9). There is a different dpi in X and Y needed for it to display properly (some kind of anamorphic mode). Default Ubuntu uses a dpi of 96x96. I can change it using xrandr, but only square eg 100x100 or 70x70. Already looked here, but it seems Ubuntu totally ignore the displaySize in xorg.conf When I use the code below to see the dpi and nothing I do changes it. The displaySize also stays the same (calculated using 96 dpi and the resolution) xdpyinfo | grep -B2 resolution I use the propretary ATI drivers for my ATI Mobility Radeon HD 50xx but it is the same with the Radeon drivers. My temporary solution is to use: xrandr --output DFP1 --mode 1024x768 --scale 1.333333333333x1 --output LVDS --off But with this the right side of the screen is nog accesable. This is a known problem with xrandr --scale and ubuntu. This is because of a patch for the mouse/windows not going outside the screen. I search a way to change the DisplaySize or the dpi(to something not square like 128x96) when I connect the display.

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• From "Try &amp;amp; Buy" to Production Database

  Join Marin Komadina as he explains what the DBA needs to know regarding licensing, database packaging models, on a Sun Solaris platform.

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• Bad Practices: Locking on Non-shared Objects in Multi-threaded Applications

  In this article we will see one of the bad practices developers always do.

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• Getting a lot of postmaster undeliverable notices for non-existent users

  - by Mike Walsh

  I've had my domain (straightpathsql.com) for a few years now. I host my e-mail with Google Accounts for business and have for awhile. ALl of the sudden in the past week I am starting to get a lot of postmaster delivery fail notices from various domains, most of them involving bogus e-mail addresses at my domain ([email protected], for example)... My assumption here is that someone is trying to relay on some other host (not my hosts which are secure through google apps for business, I presume) and there isn't much I can do to stop it. But I just want to make sure there isn't something else I need to be looking at here.. An example delivery fail notice is below.. I know nothing of those addresses below and they look like garbage... (Quick edit: the reason I get these messages is I set myself up as a catch all, so it doesn't matter what e-mail you send a note to at my domain, I'll get it if the account isn't setup... All of the failure messages are sent to bogus addresses on my domain) The following message to <[email protected]> was undeliverable. The reason for the problem: 5.1.0 - Unknown address error 553-'sorry, this recipient is in my badrecipientto list (#5.7.1)' Final-Recipient: rfc822;[email protected] Action: failed Status: 5.0.0 (permanent failure) Remote-MTA: dns; [118.82.83.11] Diagnostic-Code: smtp; 5.1.0 - Unknown address error 553-'sorry, this recipient is in my badrecipientto list (#5.7.1)' (delivery attempts: 0) ---------- Forwarded message ---------- From: Howard Blankenship <[email protected]> To: omiivi2922 <[email protected]> Cc: Date: Subject: Hi omiivi2922

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• Non-disruptive desktop-clock?

  - by YSN

  Hello, is there a clock application, that can be placed on your screen like a widget staying always on top but automatically fades away on mouseover enabling you to click through it on items below, (behaves pretty much like the Ubuntu notifications). I am aware, that there are screenlets and gdesklets widget apps, but those are buggy, look outdated, and do not comply with the criteria listed above. What I have in mind is a clock that is large, (digital), always visible (on top of all other windows), and does not disrupt your work (e.g. you can still click that scroll bar or button if it is just below the clock, since the clock fades away on hovering). Thanks in advance, YSN

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• How can I cull non-visible isometric tiles?

  - by james

  I have a problem which I am struggling to solve. I have a large map of around 100x100 tiles which form an isometric map. The user is able to move the map around by dragging the mouse. I am trying to optimize my game only to draw the visible tiles. So far my code is like this. It appears to be ok in the x direction, but as soon as one tile goes completely above the top of the screen, the entire column disappears. I am not sure how to detect that all of the tiles in a particular column are outside the visible region. double maxTilesX = widthOfScreen/ halfTileWidth + 4; double maxTilesY = heightOfScreen/ halfTileHeight + 4; int rowStart = Math.max(0,( -xOffset / halfTileWidth)) ; int colStart = Math.max(0,( -yOffset / halfTileHeight)); rowEnd = (int) Math.min(mapSize, rowStart + maxTilesX); colEnd = (int) Math.min(mapSize, colStart + maxTilesY); EDIT - I think I have solved my problem, but perhaps not in a very efficient way. I have taken the center of the screen coordinates, determined which tile this corresponds to by converting the coordinates into cartesian format. I then update the entire box around the screen.

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• Flash Webcam non responsive

  - by powerbuoy

  I've got the same problem as this gentleman: https://answers.launchpad.net/ubuntu/+source/flashplugin-nonfree/+question/176541 Where the webcam settings / access does not work at all / is completely unresponsive in Ubuntu 11.10. I've tried webcam access in Facebook, Google+, my own code + a number of tutorials/demos and none work. What happens is the settings dialogue is completely unresponsive. Clicking tabs or buttons does nothing. In the question linked to a suggested answer is to run Unity 2D. Unfortunately this does not work for me (the exact same thing happens). I've also tried Gnome 3 which also does not work. Note that it is only the webcam settings that don't work. YouTube videos and annoying banners work just fine. Does anyone know of a workaround for this (except going back to 11.04) or if they've fixed this in 12.04? - also, are any of you experiencing the same thing?

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