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• Step 2 of instructions is not clear to me

  - by Albert Frye

  I want to make a bootable USB stick. I run the UUI. I see the instructions on this site: http://www.ubuntu.com/download/desktop/create-a-usb-stick-on-windows Step 1 says: Select "Ubuntu Desktop Edition" from the dropdown list Okay, so the actual title of the drop down box is: Select a "Linux Distribution" from the dropdown to put on your USB I am pretty new to computers. 67 years old. Live alone. Bought my first computer 3 months ago. So I will have to assume that when the instructions say "Ubuntu Desktop Edition", that means the same thing as "Linux Distribution". Okay, No big leap there. So far, so good . . . . . . . So I pick the very first selection: Ubuntu 13.10 Desktop i386 I'm not sure why there are so many choices, but I'm guessing I'm pretty safe with the first one. It's for a Toshiba Satellite laptop 64 bit Windows 7. Okay, now for step 2: The instructions say: Click 'Browse' and open the downloaded ISO file. The message in the window just before the "Browse" button says: Browse to your ubuntu-13.10*desktop*i386.iso -- Okay, so where's that file? So I click "Browse" and start looking for that file. It is nowhere to be found. So where the heck is it?

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• Automatically keep your local git repos clean

  - by kerry

  Most developers using git are probably aware of a command ‘git gc’ that has to be run from time to time when you notice your git commands are running a little slow. This command cleans up your git repo and makes sure everything is nice and tidy. If you have not run this command lately, you will notice a huge performance increase in your git commands after running. It’s a bit annoying to have to run this command when you notice that your git performance is suffering. The command also takes a while if you have not run it recently. With this in mind, I decided to create a method to automatically run this command from time to time. So I decided to overload cd similar to how rvm does. All you have to do is paste the method in your .profile file and it will run the command every time you enter a directory with a git repo. You’ll notice a little pause when entering the directory, it’s not insufferable but if you would prefer, you can add an & to the end of the command to have it run in the background. I chose the pause over the pid output of the background command. Here it is in all it’s glory. View the code on Gist.

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• 9 Gigapixel Photo Captures 84 Million Stars

  - by Jason Fitzpatrick

  The European Southern Observatory has released an absolutely enormous picture of the center of the Milky Way captured by their VISTA telescope–the image is 9 gigapixels and captures over 84 million stars. From the press release: The large mirror, wide field of view and very sensitive infrared detectors of ESO’s 4.1-metre Visible and Infrared Survey Telescope for Astronomy (VISTA) make it by far the best tool for this job. The team of astronomers is using data from the VISTA Variables in the Via Lactea programme (VVV), one of six public surveys carried out with VISTA. The data have been used to create a monumental 108 200 by 81 500 pixel colour image containing nearly nine billion pixels. This is one of the biggest astronomical images ever produced. The team has now used these data to compile the largest catalogue of the central concentration of stars in the Milky Way ever created. Want to check out all 9 billion glorious pixels in their uncompressed state? Be prepared to wait a bit, the uncompressed image is available for download but it weighs in at a massive 24.6GB. 84 Million Stars and Counting [via Wired] How Hackers Can Disguise Malicious Programs With Fake File Extensions Can Dust Actually Damage My Computer? What To Do If You Get a Virus on Your Computer

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• How do I lower idle cpu usage in ubuntu linux? Gnome or KDE Variants

  - by Jasen

  My question comes from a kde desktop currently, but it also happens with the gnome instance. When just sitting there, with only the cpu monitor widget running. no open windows, no background processes other than the desktop, my cpu is at ~20%. I wanna know how to fix this, and possibly get better performance out of it. When running my windows side, the cpu will sit at zero, and i generally load new programs about 400ms faster. With windows 7 being as slow as it is, this is not acceptable. and the widget is only set to check every 500ms, so im almost completely sure its not the widget. My system is a Gateway nv 53 amd 2.0 ghz turion with 4 gb of installed ram, and 500 gb hd. both linux and windows are 64 bit. average ram use on either system is about 1.4 gb for just the os

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• Is it possible to FORMAT an external hard disk that has been encrypted using Storagecrypt?

  - by Pandian John

  Basically the big problem is that about 680 GB of data from my Seagate 2 TB Ext HD is lost because I was experimenting with a software called storagecrypt. I used it a few months ago and today I tried it again but i didn't know that the old password is already set in the hard disk when I pressed the encrypt button. I forgot the password which is disappointing. Not to mention that software uses 128 bit AES encryption so there is no way iam going to recover that data. My question is that is it possible to Format my Hard disk which has been encrypted? What i mean is that is it possible to completely wipe the data just like it is newly bought so that I can use my External Hard disk?( I tried to format by right click-- Format. But the size of the disk is shown as 1 MB. Answers would be very much appreciated. Thanks.

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• Don't miss Virtual Developer Day - All about ADF next week

  - by Shay Shmeltzer

  In case you haven't heard we are holding a free online virtual developer day next week - July 10th that you should attend - even if you think you already know ADF. First the registration link - http://bit.ly/fusiondev. While one of the tracks is aimed at developer who are relatively new to ADF - and cover ADF Faces, ADF Controller and a comparison of productivity with Forms and other tools - the two other tracks have great content on some topics that you might not be familiar with even if you already work with ADF. This include sessions about the upcoming ADF Mobile, The new ADF support in Eclipse and information about Application Life Cycle Management with ADF and JDeveloper. As well as sessions that will open your mind to the areas where ADF integrates with other Fusion Middleware Solutions such as ADF integration with BI, WebCenter and SOA. Most of the sessions are quite heavy on demos and you'll get a chance to interact with the presenters and ask questions during the live event. You should register even if you can't attend the live event - this way you'll get an email pointing you to the recorded sessions for on demand viewing. See you next week.

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• FTP error when doing file transfer

  - by Ernie

  I'm running vsftpd version 3.0.2 over FTPeS, and I'm having a bit of trouble with file transfers. It seems to work fine when I'm on the LAN, but not from an external IP address. I have the control port and data ports open on my server's software firewall and my router's firewall. When I'm using the service from an external IP address, it seems like sometimes a file transfer will complete, but it times out and I always get the client error: "426 Failure writing network stream". I've tried several clients. I'm thinking there is some sort of data sabotage either at the router or some server policy; maybe because I'm using passive ftp? Suggestions?

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• setting up freedns with an existing domain

  - by romeovs

  I've been running a webserver off of a pc at a static IP succesfully for the past 5 months. recently however, I've moved into another appartment and my ISP only provides a dynamic IP (my IP changes from time to time). I'm not an internet genius but I was thinking to fix this by using a Dynamic DNS provider. So I got on the web and found freedns. I'm a bit confused about how to set up everything though. I've managed to succesfully install the IP updater daemon on my web server. Then, in my registrars control panel, I set the NS records to point at ns1 through ns4.afraid.org (removing the old NS records). I'm not certain what I should do with the A records though (for now they are still pointing to the old static IP address). I have A records for www, blog, irc, etc. but I cannot point them at my new IP address, because it isn't Could someone explain this in the clearest possible sense (perhaps elaborating on what happens at each step of the DNS process). I never really knew what the A records are for anyway. (note that I haven't really found any documentation at the freedns website, or on google)

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• Routing Traffic on Ubuntu to give Raspberry PI Internet Access

  - by Scruffers

  I'm hoping someone can point me in the right direction for setting up my Linux (Ubuntu 12.04) box to route traffic from eth0 to wlan0. I'll try and explain the problem I am trying to solve: I currently have two separate networks: [RaspberryPi/eth0] 192.168.2.2 / 255.255.255.0 ^ | v [Ubuntu/eth0] 192.168.2.1 / 255.255.255.0 And: [Ubuntu/wlan0] 192.168.1.100 / 255.255.255.0 ^ | v [ADSL router] 192.168.1.1 / 255.255.255.0 So currently if I want to access the RaspberryPI I can SSH from the Ubuntu box to the PI. And if I want to use the Internet, I have full access from the Ubuntu box, but nothing from the RaspberryPI - the two networks are partitioned. What I would like to do is configure things so that the RaspberryPI has Internet access via the Ubuntu box and out to the Internet. I tried to create a bridge, but got the message "wlan0: operation not supported" (wireless chipset is Ralink RT3062). I'm sure giving the Raspberry PI Internet access should be easy to do in this configuration, but I am a bit lost - can someone point me in the right direction please?

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• How can I anonymize my browser useragent, yet still be counted as a FF/Ubuntu user?

  - by Rory

  I read about EFF's Panopticlick project to see how unique your webbrowser's headers are. I would like to anonymize that a bit. My current User Agent is Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.7) Gecko/20100106 Ubuntu/9.10 (karmic) Firefox/3.5.7 I would like to make that more anonymous, however I still wanted to be counted as a Firefox and Ubuntu user. How can I change my User Agent in Firefox? What should I change it to so that it's less unique, but will be counted as a Firefox user and a Ubuntu user on web analytics software? I know that there is no guarantee that I will be counted a Firefox/Ubuntu user, just something that 'works most of the time' would be sufficent.

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• Installed Java 7, but terminal still shows Java 6

  - by chipbk10

  I've installed Java 7 on my Mac (10.7.5), but in the terminal there is still java 6. java version "1.6.0_37" Java(TM) SE Runtime Environment (build 1.6.0_37-b06-434-11M3909) Java HotSpot(TM) 64-Bit Server VM (build 20.12-b01-434, mixed mode) There will be no problem with the version 6 on terminal, if I always got that errors when I tried to install a java application (LatexDraw): : CGContextGetCTM: invalid context 0x0 : CGContextSetBaseCTM: invalid context 0x0 : CGContextGetCTM: invalid context 0x0 : CGContextSetBaseCTM: invalid context 0x0 The problem is related to instability of java 6 inferred from this link I've read this installed-java-7-on-mac-osx-but-terminal-is-still-using-version-6 and also try to change my Java version by using export JAVA_HOME="/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home", but in my folder /System/Library/Frameworks/JavaVM.framework/Versions, there is no version 1.7, only versions under 1.6 ??? So, how can I fix this issue?

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• HTTP Caching Server that supports POST

  - by Jeroen

  I am hosting a REST service which is sending appropriate cache-control headers. I use Varnish as a caching server in front of my webserver. However, a limitation of varnish is that it doesn't support caching HTTP POST and HTTP PUT. Is there any alternate caching server that will be able to cache these requests? I understand that caching POST is a bit tricky because you cannot just cache based on the url as a key like for GET; it needs to actually inspect the request body. In case of multipart/form-data requests, there should probably be a limit on the size of the request body for it to be cached (so that big file uploads, etc won't be cached). Nevertheless I really want to be able to cache short HTTP POST, or at least the application/x-www-form-urlencoded ones.

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• LVM mirroring VS RAID1

  - by syrenity

  Hi. Having learned a bit about LVM mirroring, I thought about replacing the current RAID-1 scheme I'm using to gain some flexibility. Problem is that according to what I found on the Internet, LVM is: 1) Slower then RAID-1, at least in reading (as only single volume being used for reading). 2) Non-reliable on power interrupts, and requires disk cache disabling for prevention of data loss. http://www.joshbryan.com/blog/2008/01/02/lvm2-mirrors-vs-md-raid-1/ Also it seems, at least to several setup guides I read (http://www.tcpdump.com/kb/os/linux/lvm-mirroring/intro.html), that one actually requires a 3rd disk for storing the LVM log. This makes the setup completely unusable on 2 disks installations, and lowers the amount of used mirror disks on higher amount of disks. Can anyone comment the above facts, and let me know his experience of using LVM mirroring? Thanks.

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• Ubuntu 12.04 and Nvidia GTX 550 Ti

  - by Jim

  OK I'm currently trying to install Ubuntu x64 Server 12.04 onto the following machine: Intel Core i5-2320 3.0GHz LGA1155 6MB 8 GB DDR3 RAM, Gigabyte Z68P-DS3 S1155 Intel Z68 DDR3 ATX M/B, OCZ 60 GB SSD, 3x Samsung 2TB drives in a RAID 5 array (via M/B) Now what I think is causing the issue is the following: EVGA GeForce GTX 550 Ti 951MHz 1GB PCI-Express HDMI FPB As the server CD works in text mode I haven't had a problem with actually installing Ubuntu. Partioned with: 1GB /boot SSD, 59GB / SSD, 10GB swap RAID5, ~4TB /home RAID5 On a straight boot, you briefly see the GRUB menu, followed by a blank screen. The keyboard and mouse blink as they are initialised but no sign of life from the screen. Followed by a bit of research (otherwise known as google) ... Booted in quiet splash nomodeset Now I have a fully working linux distro at the command prompt. I then proceed to try and update the nvidia drivers with apt-get (after updating repositories etc) and rebooting. Still the same problem. I also tried reinstalling from the CD and installing said drivers in the install process before GRUB was installed, still the same symptoms. Does anybody have any solutions? I'm at my wits end here, I bought this machine to be a linux server / tinkering machine and have just spent 4-5 hours trying to just get a basic install working.

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• Application that recoginzes default gestures and tells me about results

  - by Andreas

  I need to check what gestures are available for certain touch pads, and also find out what kind of information is available. Is there some kind of application that simply recognizes gestures and prints out all relevant parameters for my test? I am mainly interested in multi-finger gestures, with 2-3 fingers, but also, whether distinctino about where a gesture was done (e. g. right border, left border) would be very helpful. Target is going to be Windows 7 and 8 64 bit.

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• Impersonation on IIS 7.0 passes the machine credentials for Crystal Reports

  - by pknox

  On a 32-bit Windows 2008 server running the Donor2 Application in the Classic .NET Managed Pipeline mode, configured for Windows Integrated Authentication and Impersonation, all of the .NET pages are passing the authenticated user’s credentials [DomainName\UserName]. This is the correct, expected behavior. The Crystal Reports pages, instead of passing the authenticated user’s credentials, are passing the IIS Server’s credentials [DomainName\MachineName$]. One of the very frustrating aspects of this situation is that I have another server which, as far as I can tell, is configured identically. That server, when loading Crystal Reports, is passing the authenticated user’s credentials [DomainName\UserName] as expected. I have obviously missed something, but I have no idea what it could be.

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• Clipboard replacements (Ditto, ClipX) stopped working in Windows 7

  - by Bassam

  Over the past few days, I've noticed that the clipboard replacement application I use (Ditto) isn't working any more. Specifically, it isn't copying items to its list. It still shows the history of items copies before, but doesn't add any new items. I am still able to paste past items, so the program is still functional. It will work for a while after quitting and restarting the program, but then it will soon stop getting new items again. I've tried using ClipX, another clipboard replacement app, and that doesn't get new items either. This leads me to think this is a Windows problem. I'm on Windows 7, 64-bit. Is anyone else having this problem? Any ideas on what might be causing it? Update: I've found that if I Disconnect from the clipboard, then Connect to clipboard again, then it works for a while, but stops collecting items again after 15 mins.

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• Displaying a Grid of Data in ASP.NET MVC

  One of the most common tasks we face as a web developers is displaying data in a grid. In its simplest incarnation, a grid merely displays information about a set of records - the orders placed by a particular customer, perhaps; however, most grids offer features like sorting, paging, and filtering to present the data in a more useful and readable manner. In ASP.NET WebForms the GridView control offers a quick and easy way to display a set of records in a grid, and offers features like sorting, paging, editing, and deleting with just a little extra work. On page load, the GridView automatically renders as an HTML <table> element, freeing you from having to write any markup and letting you focus instead on retrieving and binding the data to display to the GridView. In an ASP.NET MVC application, however, developers are on the hook for generating the markup rendered by each view. This task can be a bit daunting for developers new to ASP.NET MVC, especially those who have a background in WebForms. This is the first in a series of articles that explore how to display grids in an ASP.NET MVC application. This installment starts with a walk through of creating the ASP.NET MVC application and data access code used throughout this series. Next, it shows how to display a set of records in a simple grid. Future installments examine how to create richer grids that include sorting, paging, filtering, and client-side enhancements. We'll also look at pre-built grid solutions, like the Grid component in the MvcContrib project and JavaScript-based grids like jqGrid. But first things first - let's create an ASP.NET MVC application and see how to display database records in a web page. Read on to learn more! Read More >

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• Extremely slow startup of tomcat

  - by Henrik

  I have a tomcat 7 installation on a Solaris 10 server. My problem is that starting the server (or deploying a new war) is extremely slow. It usually take 30 - 60 minutes. The war application is a medium sized grails application so there are quite a a lot of files. The server is running other server applications as well but from my basic skills I don't see this as a problem. Can anyone give me some tips on how to analyse this? Settings in Tomcat, java, server, disc access or something else? I use these parameters to tomcat: CATALINA_OPTS="-Dcom.sun.management.jmxremote=true -Djava.awt.headless=true -Dfile.encoding=UTF-8 -server -Xms1536m -Xmx1536m -XX:NewSize=256m -XX:MaxNewSize=256m -XX:PermSize=512m -XX:MaxPermSize=512m -XX:+DisableExplicitGC" And I use a 32 bit java 1.6.

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• I can't delete a file - even when using unlocker

  - by chipperyman573

  So I have a 64 bit windows 7 ultimate computer. On my desktop, I have a .iso file that should NOT be used by anything. However, when I use lockhunter (unlocker doesn't work for me), it says it can't unlock or delete it. When I check what it's being used by, it says by the system. Here's a picture when I click delete: Here's a picture of when I click unlock it: When I click Other Close locking process: I've had this file on my computer for a LONG time now and haven't been able to delete it. I've also tried eraser erase on startup, but that doesn't work, either. How can I remove this file?

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• ACL mess after rsync on Windows 2008

  - by jdehaan

  The permissions in the ACL are not in the right order on some files and directories after having used rsync to synchronize directory trees. The stuff works well as it is on Windows 2003. Can someone explain this in detail. What exactly changed regarding ACLs from Windows 2003 to 2008? We fixed the rights with icalcs afterwards. But this thing seems a bit weird. Maybe 2008 has some restrictions or more checks 2003 did not have.

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• Online File Sharing that acts just like LAN shared drives, etc.

  - by Dayton Brown

  Hi All, Have a small business client that wants to move their current file share to the web. Specs are as follows, 20 to 30 GB of space, file sizes are normal (nothing more than 50 to 100 mb) 3 users ideal solution would be exact same functionality as windows explorer. CHEAP!!! But not super cheap. I would like to keep it around $20 per user per month. I've explored a bunch of solutions, but they are all a bit on the complicated side. Thanks in advance for the recommendations.

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• How to write code that communicates with an accelerator in the real address space (real mode)?

  - by ysap

  This is a preliminary question for the issue, where I was asked to program a host-accelerator program on an embedded system we are building. The system is comprised of (among the standard peripherals) an ARM core and an accelerator processor. Both processors access the system bus via their bus interfaces, and share the same 32-bit global physical memory space. Both share access to the system's DRAM through the system bus. (The computer concept is similar to Beagleboard/raspberry Pie, but with a specialized accelerator added) The accelerator has its own internal memory (SRAM) which is exposed to the system and occupies a portion of the global address space (as opposed to how a graphics card would talk to teh CPU via a "small" aperture in the system memory space). On the ARM core (the host) we plan on running Ubuntu 12.04. The mode of operation of communicating between the processors should be that the host issues memory transactions on the system bus that are targeted at the accelerator internal memory. As far as my understanding goes, if I write a program for the host that simply writes to the physical address of the accelerator, most chances are that the program will crash due to a segmentation violation. So, I assume that I need some way of communicating with the device in real mode. What is the easiest way to achieve this mode of operation?

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• What is the correct root file to import to aptana from an xampp folder/existing web app or git repository?

  - by gaff

  Very noob question - all of this is new to me - not really sure how to get started. Overview: I'm taking over an existing wep project that has been developed in aptana and deployed in xampp setup - I also have access to Git repository on local directory. I want to import the web application into aptana, run it and begin updating/editing - bit of steep learning curve for me What is the best way to import? And what should I import? What should it look like in aptanan? I tried importing what I think is the root file from the git folder ("existing folder as new project")- it contains things like css, doc, img and js. This looks right to me - but might not be. Thanks, Gaff

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• MacBook Pro (with DVI) to HDMI, including audio - possible?

  - by Jason

  I have a MacBook Pro with DVI. I'd like to hook it up to my living room TV for movies and such but I want to keep it out of the way. I already have HDMI cables run to the basement where I have a cable box. Is there something I could you to connect the MBP video and audio to HDMI so I only need the one cable to the TV? I'm looking for a quality picture but I don't want to spend a ton of $. I've googled a bit, but I'm looking for some recommendations.

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