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• Bitbucket and a small development house

  - by Marlon

  I am in the process of finally rolling Mercurial as our version control system at work. This is a huge deal for everyone as, shockingly, they have never used a VCS. After months of putting the bug in management's ears, they finally saw the light and now realise how much better it is than working with a network of shared folders! In the process of rolling this out, I am thinking of different strategies to manage our stuff and I am leaning towards using Bitbucket as our "central" repository. The projects in Bitbucket will solely be private projects and everyone will push and pull from there. I am open to different suggestions, but has anyone got a similar setup? If so, what caveats have you encountered?

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• How can I access profile fields with a % variable in Drupal Actions?

  - by Rob Mosher

  I have an action setup in drupal to e-mail me when a new user registers for the site. Right now it is only telling me their user name (%username). Is there a variable that can access added fields so I can get their real name (First Last), or another way to add this info to the action message? So instead of my new user action having a message like: "%username created an account" - "jschmoe created and account" I could have: "%first_name %last_name (%username) created an account" - "Joe Schmoe (jschmoe) created an account". I'm using Content Profile module for the first and last name fields, though have few enough users at the moment that I could switch to Profile module fields.

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• Why is my Quickly app full of fail?

  - by bstpierre

  I tried to use quickly on Ubuntu 12.04 to create an application, but it does not behave as described in that linked page. I don't get a popup when creating the application (see error below). % quickly create ubuntu-application foo Creating project directory foo Creating bzr repository and committing Launching your newly created project! (foo:16847): GLib-GIO-ERROR **: Settings schema 'org.gnome.desktop.interface' is not installed Congrats, your new project is setup! cd /tmp/foo/ to start hacking. It creates a project, but when I try to run, it crashes and burns: % cd foo % quickly run (foo:22639): GLib-GIO-ERROR **: Settings schema 'org.gnome.desktop.interface' is not installed Is this because I'm not using gnome-shell? What can I do to get a working project? (Edit: As a side note, I'd be willing to debug this myself, but I don't even get a traceback. What do I have to do to get quickly to give me a traceback?)

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• What can I use to set up a 100% cloud based python IDE + Hosting environment?

  - by PhD

  I'm working a side project and I can't always be on "my" machine to code/deploy the web application. I am aware of various cloud IDEs (e.g., Cloud 9 IDE) and independent Django/Flask etc., hosting services (e.g., Heroku). What is the best way to completely shift my development/deployment environment to the cloud so that I can code/deploy from anywhere? I don't mind using paid services but I'm not sure which cloud IDEs play nice with which hosting services. Has anyone tried this setup before? What has or hasn't worked? I want to minimize the manual intervention in 'connecting the two services' as much as possible. I'm going to be using Django, MySQL and Redis for the web-app

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• Why does my RAID configuration with mdadm fail on reboots?

  - by Andy B

  I have been running Ubuntu server on my machine for 2 years and it has worked ok. I would like to speed it up by raiding a few drives. The machine is used to host my Mysql databases internally. using MDADM raid.. I have tried 2 schemes so far with the 3 drives. 2 partitions on each drive 1 for the swap 1 for the O/S both of them turned into drives raid level 5 3 partitions on each drive 1 for the boot 1 for the swap and 1 for the root. The boot I set to raid level1 and the swap and root raid drives were set to level5 Both setup worked fine for about a week, then on a reboot things fall apart. by fall apart I mean I end up with a bunch of hard drive errors on the screen and then get a grub prompt. Why do they fail on reboots? I am eager to understand what I am doing wrong thanks!

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• Implementation of a Rules Engine in Your Business Applicaitons

  - by enonu

  I'm for an experience driven answer from a few software engineers who have implemented a rules engine in their internal business applications. How has it affected your business in the following ways: Ability to launch and iterate over business driven logic Ability to have "business users" perform the actual modification of those rules rather than developers. Ability to comprehend the business rules in general. Quality of the software releases. More or less bugs from the end-user's POV? Speed of the applications. If you had to do it all over again, what would you do differently? Lastly, I'm looking for a qualification of your answer w/ respect to the architecture. Would you do the same thing if you were deploying to a 1-machine setup vs. your architecture vs. a multi-tier cloud-based distributed architecture using 1000s of machines? How would it be different? Thanks!

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• How much to charge for Wordpress installation?

  - by Jack Duluoz

  I know this isn't properly a technical question but I hope this is ok here. The question is simple: how much should I charge a customer for a Wordpress installation & configuration? Configuration simply means I have to install him a theme (which is not provided by me), various plugins and maybe edit some lines of code here and there to make the whole thing work fine. MORE INFO I don't do this for a living, I'm just doing this for this single customer. He told me he wants to customize some features of the blog which I think will require a bit of code editing, but these will be small modifications, because I already told him that more substantial modifications will be billed separately. I don't know exactly how long will this take, but probably just 1 day for the setup and some more days to adapt the blog to the customer requests which will eventually come up later

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• Backing up bind mounted folders

  - by NahsiN

  My layout is as follows. LVM Setup: /dev/VG/Documents, /dev/VG/Music, /dev/VG/Pictures, /dev/VG/Music, /dev/VG/Documents, etc.... Each of the LVMs is bind mounted to the corresponding folder name in /home/foo. For example, /home/foo/Documents bind mounted to /media/Documents (mount point of /dev/VG/Documents), etc. If I set up deja-dup to just back up my home folder, am I guaranteed that everything from my LVMs will be backed up properly? So let's say I take away my LVMs for some reason and choose to restore an earlier backup. My home folder will contain everything from the LVMs? All my docs, music, vids etc. My intuition tells me everything will be fine but it doesn't hurt to ask the the experts ;). Hope I have made myself clear. Thanks

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• Tweaks to allows maximum number of users to login to ubuntu server.

  - by nixnotwin

  I use ubuntu server 10.04 on a fairly good machine, with 2.40 duel-core processor and 2GB RAM. My users login with ssh or samba. I have setup LDAP with PAM to sync user accounts between unix and samba. When I allowed about 90 users to login over ssh at once the server refused login for many users. I am using dropbear as ssh server. Even samba logins failed for many users. I need to allow at least 100 users to login at once. Is there anyway to do this?

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• Find visitors to multiple subdomains on single visit with Google Analytics

  - by mrwweb

  I'm working on a site that has quite the backlog of Google Analytics data for their site network. One of our big questions is whether people enter on one site and move to another (and if so, of course, how do these visits differ from single site visits). The hostname report (Audience Network Hostname) shows all the host names and I've setup Advanced Segments to get site-specific data. That all works great, but I'm really having a hard time figuring out how to find visits to multiple sites as defined by visiting more than one subdomain or the root site and one or more subdomains. I do see that other hostnames somehow come through when I apply one of the segments to the host name report. Which I can't say I expected. Is that the best way to see if people are visiting 2+ sites?

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• How to distribute applications?

  - by Dr Deo

  I am new to Ubuntu development. As a learning experience, I have written a custom chat application using qt4 and I want to deploy it in some sort of setup file. Whats the easiest way of deploying an application viz a viz setting desktop icons. automatically requesting for administrator privileges to execute. inserting an entry into the startup menu. automatically compress my application and reduce download size. automatic startup for my application without user intervention I am familiar with using NSIS scripts on Windows, but I don't know where to begin on Ubuntu. I would preffer a solution similar to NSIS scripts.

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• power manger keeps on shuting down the display even when i state in the power manger to never do that.

  - by david25

  i'm probably missing something here, i'm using the default ubuntu power manger, i setup it like that: on AC: no screen dimming when ideal. never put computer to sleep. never put display to sleep. on battery i kept the default setting. and still ubuntu does what ever it likes :\ , after 15 min it puts the display to sleep. any one having the same problem and found a way to bypass it? im using eee pc with ubuntu 10.10 desktop.

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• How can I reduce the time taken to login by postponing/delaying some startup applications?

  - by koushik

  I have setup some applications to startup on each login (e.g., redshift-gtk, gtg) automatically but after adding these to startup applications (System -> Preferences -> Startup Applications) obviously the time taken to login has increased. Due to all this the time it takes for my panels, desktop etc to appear is too long - until which I am forced to wait. I don't need these apps to be available immediately, but it would be good if they startup eventually, meanwhile the ubuntu menu/panel is available for running other apps that I might need to. I tried using at command, with the intention of editing all startup applications to put the commands in the at queue, but this didn't work since the apps don't get the necessary environment variables (like DISPLAY). Is this what nice command is used for? Any other ideas how I can accomplish this? If possible, I would like to avoid editing the startup applications commands, since this would mean a lot of effort to replicate on other machines I use.

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• experience: coding on netbooks

  - by pascal

  HI, i want to buy a netbook for doing some stuff in the train. Can someone report how it is to code simple stuff on a netbook? 10/12". I wanted to buy a very cheap one. like 1gb ram 1,6ghz blabla. and run linux on it with apache. i will code with JS/PHP. and as IDE i'll be using notepad++. so nothing big like eclispe or something else. maybe later on eclipse for java, but that doesn't really matter. so first, would this setup work fine on such a netbook and, is it okay for coding? I don't style any homepages on the netbook, I just want to code. would be nice if someone can share his experience in that. thanks :)

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• Should tests be in the same Ruby file or in separated Ruby files?

  - by Junior Mayhé

  While using Selenium and Ruby to do some functional tests, I am worried with the performance. So is it better to add all test methods in the same Ruby file, or I should put each one in separated code files? Below a sample with all tests in the same file: # encoding: utf-8 require "selenium-webdriver" require "test/unit" class Tests < Test::Unit::TestCase def setup @driver = Selenium::WebDriver.for :firefox @base_url = "http://mysite" @driver.manage.timeouts.implicit_wait = 30 @verification_errors = [] @wait = Selenium::WebDriver::Wait.new :timeout => 10 end def teardown @driver.quit assert_equal [], @verification_errors end def element_present?(how, what) @driver.find_element(how, what) true rescue Selenium::WebDriver::Error::NoSuchElementError false end def verify(&blk) yield rescue Test::Unit::AssertionFailedError => ex @verification_errors << ex end def test_1 @driver.get(@base_url + "/") # a huge test here end def test_2 @driver.get(@base_url + "/") # a huge test here end def test_3 @driver.get(@base_url + "/") # a huge test here end def test_4 @driver.get(@base_url + "/") # a huge test here end def test_5 @driver.get(@base_url + "/") # a huge test here end end

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• Random freezes on MBP9,2 + Ubuntu 12.04

  - by EnToutCas

  I have a MBP9,2 (mid-2012) at work. I put Ubuntu 12.04 on it after some efforts. Everything works more or less now, except I get random freezing every now and then. I have to power off the machine to restore it. Wondering if anyone had the similar issue. My setup: MacBook Pro 9,2 (mid 2012) Ubuntu 12.04 (installed using the special image for Macs) No proprietary drivers xmonad on Unity 2D So far the freezes look to be sporadic and spontaneous.

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• How do I set up XDMCP access via GDM?

  - by np_hard

  I am a newbie to ubuntu linux, and want to setup xdmcp access, so i can access it from my windows box using xming. part of it is learning exercise also, since i know i could use vnc to directly connect to ubuntu. I modified the gdm's custom.conf file like this [xdmcp] Enable=true but when i launch xlaunch, i see a blank screen, further diagnosing with wireshark, i got that the udp port 177 on the linux box is unreachable so i disabled the firewall on linux box, but still same result. I checked with nmap and there is no service listening on UDP 177 port, the gdnsetup on natty is quite different from the older version, where setting up xdmcp was in UI

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• Sun & Moon Movement

  - by Thomas Mosey

  I'm creating a 2D HTML5 Canvas Game and am stuck on how to go about animating my Sun & Moon. The current setup is basically setting the moon at -1024 on the X-axis and the sun at 0 and animating them at 1 pixel a second. My canvas width is 1024 pixels and whenever the sun/moons X position crosses over the width of the canvas, it's X position is then set to -1024 to repeat the animation. What I am trying to do is get it to sync up with my day/night cycles. Each day is 10000 ticks long (A tick being added every frame) with Day/Night being 50% each (5000 ticks each). What I am trying to calculate is what I'll need to add to the X position of each per frame to get the sun from an X of 0 to 1024 after 5000 ticks/frames. Any help is appreciated.

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• Find Nearest Object

  - by ultifinitus

  I have a fairly sizable game engine created, and I'm adding some needed features, such as this, how do I find the nearest object from a list of points? In this case, I could simply use the Pythagorean theorem to find the distance, and check the results. I know I can't simply add x and y, because that's the distance to the object, if you only took right angle turns. However I'm wondering if there's something else I could do? I also have a collision system, where essentially I turn objects into smaller objects on a smaller grid, kind of like a minimap, and only if objects exist in the same gridspace do I check for collisions, I could do the same thing, only make the gridspace larger to check for closeness. (rather than checking every. single. object) however that would take additional setup in my base class and clutter up the already cluttered object. TL;DR Question: Is there something efficient and accurate that I can use to detect which object is closest, based on a list of points and sizes?

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• How can I fix latency problems for car game?

  - by Freddy

  Basically I'm trying to make a online car racing game for IOS using Game Center real time multiplayer. I have setup a timer that sends data every 0.02 seconds to the other player with the current position and current angle. However sometimes, it will take LONGER then these 0.02 seconds for the package to be sent and then received. In this case i have implemented a method that "calculate" what the next position should be if no position is received based on the last position and angle. However, when the data then receives for let say 0.04 seconds after, it will change back to the last position, which will result in the car "jumping" back and lag. And If i just keep ignoring the data it will never take any input from the other user. Is their any way to prevent this? I suppose this needs to be fixed with some client-sided algorithm.

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• Choosing a mobile advertising mediator over going it alone

  - by Notbad

  We have finished our first game for IOS/Android. We would like to give it away adding ads to it. I have been reading a lot about the subject but it is a bit overwhelming for starters. From what I read, it seems there are some important points to have into consideration: 1) Do as much localization as you can (target your audience with ads they could be interested for the zone they live in). 2) Do not over advertise in your application. At this moment we have decided to go with AdMob. It seems an easy option to setup for beginners and have a good set of ad networks. My question is, will we earn less for example for iAds using adMob than implementing iAds without a mediator? Are adMob paying less than others (this is what I remember for some artilces I read)?. It would be nice to hear from people with experience on this to let us light our way a bit.

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• Reminder: For a Complete View Of Your Concurrent Processing Take A Look At The CP Analyzer!

  - by LuciaC

  For a complete view of your Concurrent Processing take a look at the CP Analyzer!  Doc ID 1411723.1 has the script to download and a 9 min video. The Concurrent Processing Analyzer is a Self-Service Health-Check script which reviews the overall Concurrent Processing Footprint, analyzes the current configurations and settings for the environment providing feedback and recommendations on Best Practices.This is a non-invasive script which provides recommended actions to be performed on the instance it was run on.  For production instances, always apply any changes to a recent clone to ensure an expected outcome. E-Business Applications Concurrent Processing Analyzer Overview E-Business Applications Concurrent Request Analysis E-Business Applications Concurrent Manager Analysis Identifies Concurrent System Setup and configurations Identifies and recommends Concurrent Best Practices Easy to add Tool for regular Concurrent Maintenance Execute Analysis anytime to compare trending from past outputs Feedback welcome!

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• Computer Lab School for Orphans

  - by Brendon

  I am helping out an NGO, called Orphans Found Fund, here in Arusha Tanzania setup a computer lab to teach students about Ubuntu and open source applications. I have installed Ubuntu 10.10 on all the systems. What I'm wondering about is how to tweak the systems so that the kids cannot: Delete or alter system files Alter the system settings Add or remove applications Exceed a time limit (like an Internet Cafe) Also as the administrator I would like to monitor the usage for another system to make sure that abuse of network is not taking place. Any advice is much appreciated. Brendon

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• How to modify grub entry for supporting KGDB kernel image?

  - by Nishant

  I am trying to update target m/c grub.cfg file for KGDB setup but while booting the m/c it got hung completely and not asking/waiting for remote gdb connection. Following is the entry which I added:- menuentry 'Ubuntu, with Linux 2.6.32-24-kgdb' --class ubuntu --class gnu-linux --class gnu --class os { recordfail insmod ext2 set root='(hd0,1)' search --no-floppy --fs-uuid --set 12878c3b-c553-4b4b-986a-6e32daea3ad1 linux /vmlinuz-2.6.32-kgdb root=/dev/mapper/ubuntu-root ro kgdbwait [email protected]/,@192.168.140.158/ quiet initrd /initrd.img-2.6.32-24-server } I have also compiled and copied /boot/vmlinuz-2.6.15.5-kgdb & /boot/System.map-2.6.15.5-kgdb to target m/c from devlopement m/c. STD entry before adding KGDB in grub.cfg was:- menuentry 'Ubuntu, with Linux 2.6.32-24-server' --class ubuntu --class gnu-linux --class gnu --class os { recordfail insmod ext2 set root='(hd0,1)' search --no-floppy --fs-uuid --set 12878c3b-c553-4b4b-986a-6e32daea3ad1 linux /vmlinuz-2.6.32-24-server root=/dev/mapper/ubuntu-root ro quiet initrd /initrd.img-2.6.32-24-server } Please suggest how to get rid of this problem.

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• Installing drivers for an ATI 6950

  - by aj.esler

  Is there any way to get ubuntu to recognise an ATI 6950? I have tried installing the proprietary ATI drivers, but these do not seem to work properly. It seems to screw up the gnome desktop, and starts booting into terminal. I'm somewhat of a linux newbie, so not really sure whats going wrong. I don't want to game on ubuntu, I just want it to recognise my dual monitor setup rather than mirroring the monitors, so any driver that does this is fine by me. It seems like the open source ATI radeon drivers will not support the 6950/6970 for some time, at least until kernel 2.6.38 is released. The card is also flashed with the 6970 firmware, not sure if this is important. I am running a 64 bit version of ubuntu, I installed ubuntu server 10.10, then installed gnome-desktop.

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