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  • Life and Career guidance

    - by Andrei TheGiant Haxtor
    Hello programmers. I have a current dilemma I'm pondering over. I will be graduating from high school with ~60 credits worth of community college work (pre-engineering courses), and I am wondering what would experienced programmers suggest I do with my time since I have all of the bull courses out of the way. Should I start taking computer science/engineering courses or should I take some other courses that interest me?(psych, math) The reason I am asking this is, well , I like doing a lot of self studying, especially relating to software and tech. I don't like to have the pressure of hard classes on me, so I could make up for the time lost doing the CC courses and dive deep in programming and books. I've started getting into programming recently unfortunately, since I didn't have much time b/c of my course load. Right now I am doing Java and messing around with android. I would like to get involved in web&mobile development, operating systems, and finance software. If any of you experienced people could please give me some guidance and words of wisdom, I would greatly appreciated. Sorry that this isn't necessarily related to programming. All the best.

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  • Unity Bar auto-hide behaviour and application icons placement

    - by Andrei
    The first issue: It seems that sometimes when I hover to the left edge of the screen the Unity Bar will not stay on top of other windows even if I continue to hover the cursor above it, at other times it will stay on top. Is this a normal behaviour? Or am I affected by some bug / inconsistency? If it's normal, what's the logic behind it? The second issue: Application icons for running applications do not maintain their position in the Unity Bar but instead move around according to some weird rules (if any?) that I can't understand. Is this to be expected, or is it a bug? Is there a way to force them to stop moving around? I like to see certain apps in certain positions and this bothers me.

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  • How can I start Busybox at boot time, from GRUB, or even before GRUB?

    - by Andrei
    Most Busybox questions are related to the fact that users are dropped to a Busybox shell due to some unknown issues at boot time. This must make Busybox one of the most hated pieces of software. My problem is the opposite. I want to deliberately start Busybox at boot time either from GRUB, or even before GRUB. Is this possible? How can I do it? The purpose is to execute some commands before the boot sequence is reinitiated. So basically I want to execute some commands to make some hardware available to the bootloader.

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  • SysRq+REISUB hangs at "resetting" (without actually resetting/restarting) in Maverick

    - by Andrei
    I'm trying SysRq+REISUB to see how it would be used to restart my system safely in case of emergency. However, I find that SysRq+REISUB hangs at "resetting" (without actually resetting/restarting) in Maverick. All other SysRq combinations appear to work correctly (i.e. SysRq+REISU). cat /proc/sys/kernel/sysrq returns 0. But I'm not sure it's relevant because SysRq certainly works. What can I do to have "B" actually restart the system? Thanks!

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  • time it takes to develop 4*N lines of code. Nonlinear, but how nonlinear ?

    - by Andrei
    It took me time T to develop program A, 1000 lines of code (SLOC), in certain language/area/complexity. Then how much time it will take to develop program B which is expected 4000 lines, in same area/complexity/language ? I expect it to be 4*N, right ? Any formula how T grows with SLOC ? For contractor, these estimates are important. Is there formula from software enginering books, or from people's experience ? Also, what methods exist to make the code bug-free before it hits QA ?

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  • Keyboard shortcuts get randomly reset

    - by Andrei
    I'm facing a rather weird issue in the past few days after doing a clean install of Ubuntu Oneiric (w/ gnome-shell) on my recently-bought Asus U36SD. I set up my keyboard shortcuts using System Settings Keyboard Shortcuts, and some of them get randomly reset. Most of my shortcuts include the win key (otherwise listed in the keyboard shortcuts as Mod4), but those containing only Mod4 + get reset every two-three reboots. For instance, Mod4 + T (for terminal), gets reset to the standard Ctrl + Alt + T, while Shift + Mod4 + W (for browser) doesn't (I've set up the latter with the Shift key, because it seems that Mod4 + W didn't get intercepted at all. Something similar goes for Mod4 + E for gedit, which only worked once or twice). I have no idea if this is a Ubuntu specific issue, or it's related to gnome-shell or even with my current hardware. Has this happened to any of you? If so, did you manage to fix it?

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  • What is the best Video Conference integrated solution for Us? [closed]

    - by Andrei B
    we are trying to integrate a simple Video Conferencing (open source) solution into our existing application which is written in C++ and it runs on Linux. I am currently looking at using Ekiga (formely known as GnomeMeeting) or Homer Conferencing (short: Homer). My plan is to "integrate" an existing Video Conferencing client into our existing software. Please give me recommendation on which 3rd party application or library to use to add video conferencing feature to our application. PS: Please don't close this question. I asked it on StackOverflow and it got closed, so where am I supposed to ask this question? If not here, then whats the point of asking lol.

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  • Broadcom BCM4313 wireless slow and high-latency

    - by Florin Andrei
    Ubuntu 12.10 64 bit on a Dell Latitude E6330 laptop. Wireless is pretty slow. It gets connected quick enough, but then it acts like a dialup connection. My ssh sessions over WiFi are slow and laggy. Even browsing is slow, the pages are loading like it's 1998. This does not depend on the access point, it's the same both at home and at work. Other systems work fine on these access points. I had an older Dell laptop before, different WiFi hardware, and it was much faster over the same wireless access points. Is this a known issue with this hardware? If so, any solutions?

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  • Grandfather’s Tales – Why You Always Plug Directly into the Modem [Humorous Comic]

    - by Asian Angel
    Note: Comic contains some language that may be considered inappropriate. The tale of the troll router, or, how I learned to love plugging directly into the modem [via Reddit] How to Own Your Own Website (Even If You Can’t Build One) Pt 1 What’s the Difference Between Sleep and Hibernate in Windows? Screenshot Tour: XBMC 11 Eden Rocks Improved iOS Support, AirPlay, and Even a Custom XBMC OS

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  • Héritage multiple en C++: Pourquoi l'héritage d'interfaces est insuffisant, Par Loïc Joly

    Bonjour à tous ! Je viens de mettre en ligne un article, intitulé : Héritage multiple en C++ : Pourquoi l'héritage d'interfaces est insuffisant N'hésitez pas à faire donner votre avis, faire des remarques. L'article compare aussi des fonctionnalités de différents langages orientés objet, principalement C++, C# et Java. En tant que tel, j'espère qu'il pourra susciter des discussions intéressantes, sans sombrer dans le troll inter-langages. Bonne lecture !...

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  • Bind9 seems to route wildcard DNS even though they are not enabled?

    - by Andrei
    For some reason bind9 seems to route wildcard DNS even though they are not defined anywhere? Accessing anyrandomstring.domain.com routes to the domain even though they are not explicitly defined anywhere? Neither is wildcard defined anywhere in the files in /var/cache/bind/ I typed sudo service bind9 reload a couple of times now. Any ideas? Update: also tried using rndc Update2: ran sudo service bind9 stop and then accessed a random subdomain and it got routed

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  • How to make MAMP PRO / XAMPP secure enough to serve as production webserver? Is it possible?

    - by Andrei
    Hi, my task is to setup a MAMP webserver for our website in the easiest way so it can be managed by my colleagues without experience in server administration. MAMP PRO is an excellent solution, but some guys don't suggest to use it for serving external requests. Could you explain why it is bad (in details if possible) and how to make it secure enough to be a full-scale and not-only-local webserver? Is there a better solution? Update There is a discussion on the MAMP website. XAMPP developers say that one can make their product secure: The default configuration is not good from a securtiy point of view and it's not secure enough for a production environment - please don't use XAMPP in such environment. Since LAMPP 0.9.5 you can make your XAMPP installation secure by calling »/opt/lampp/lampp security«. Could you comment it?

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  • moving dynamic disk from Windows to another Windows computer when original Windows is not available

    - by Andrei
    How do I mount dynamic disk on new system without access to the old OS ? I need to move Dynamic data disk from old Windows XP (Pro, SP3) system, where disk crashed, to new Windows system without having access to the old OS. On new system, Dynamic disk shows as "Dynamic - Foreign". Microfoft has instructions for moving Dynamic Disk [1]. But Microsoft assumes having access to the old system. But I do not have acess to the old system. I am struck with "Dynamic - Foreign" static of the disk on new system. Thanks WinXP Pro SP3 [1] http://technet.microsoft.com/en-us/library/cc779854(WS.10).aspx Move Disk to another computer.

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  • USB sound card with 6.3mm jack output

    - by Andrei Rinea
    I have a pair of Sennheiser 555 semi-professional headphones. These have a 6.3mm jack and a 3.5mm jack adapter. I wish I could buy an USB sound card for my laptop that would have a 6.3mm output not 3.5mm so I could skip this adapter and lose less quality. Any recommendations?

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  • Laptop HDD failure imminent?

    - by Andrei Rinea
    I have an HP Compaq 615 laptop with an 160 GB 7200 rpm HDD. Hasn't been dropped or shaken, in fact it almost always stayed on my desk. I've treated it as nice as I could. The other day, however, my OS froze and I could hear a repeated clink-clink-clink coming from the HDD zone of the laptop. I had to switch off hardware-ly the laptop and re-start it. It worked very well after, including now. However I backed up immediately the core data on my USB drive and ordered an external USB HDD for periodic backups. Will it die soon or it was just a "blip"?

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  • 502: proxy: pass request body failed

    - by Andrei Serdeliuc
    Sometimes I get the following error (in apache's error.log) when viewing my site over https: (502)Unknown error 502: proxy: pass request body failed to xxx.xxx.xxx.xxx:443 I'm not entirely sure what this is and why it happens, it's also not consistent. The request route is: Browser Proxy server (apache with mod_proxy + mod_ssl) Load balancer (aws) Web server (apache with mod_ssl) The configuration on the proxy server is as follows: <VirtualHost *:443> ProxyRequests Off ProxyVia On ServerName www.xxx.co.uk ServerAlias xxx.co.uk <Directory proxy:*> Order deny,allow Allow from all </Directory> <Proxy *> AddDefaultCharset off Order deny,allow Allow from all </Proxy> ProxyPass / balancer://cluster:443/ lbmethod=byrequests ProxyPassReverse / balancer://cluster:443/ ProxyPreserveHost off SSLProxyEngine On SSLEngine on SSLCipherSuite ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP:+eNULL SSLCertificateFile /var/www/vhosts/xxx/ssl/www.xxx.co.uk.cert SSLCertificateKeyFile /var/www/vhosts/xxx/ssl/www.xxx.co.uk.key <Proxy balancer://cluster> BalancerMember https://xxx.eu-west-1.elb.amazonaws.com </Proxy> </VirtualHost> Any idea what the issue might be?

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  • I can't uncheck the "read-only" attribute from a folder on a Windows Server 2008 machine.

    - by Andrei
    Hello everybody. I have a folder (C:\temp) on a windows server 2008 R2 installation. Initially it has the Read Only attribute checked, but I want to uncheck it. I am able to uncheck it and it even shows me the loading process (it is showing me that it is going through all the subfolders), but after I press OK and I go back to properties, it still remains checked as Read Only. Hope someone has an idea. Thanks. edit: I tried this one, but it doesn't seem to work: http://support.microsoft.com/kb/256614

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  • Implementing dry-run in bash scripts

    - by Andrei Serdeliuc
    How would one implement a dry-run option in a bash script? I can think of either wrapping every single command in an if and echoing out the command instead of running it if the script is running with dry-run. Another way would be to define a function and then passing each command call through that function. Something like: function _run () { if [[ "$DRY_RUN" ]]; then echo $@ else $@ fi } `_run mv /tmp/file /tmp/file2` `DRY_RUN=true _run mv /tmp/file /tmp/file2` Is this just wrong and there is a much better way of doing it?

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  • Which are the non-x text editors in Powershell?

    - by Andrei T. Ursan
    Are there some editors like emacs, vi/vim, specifically for power shell, if so which are the best? I will have to do some work on windows and I need some unix productivity - which means for me shell + text editor with syntax highlighting (for python, java, c, c++), so which are my options? Edit: I'm looking for an alternative at vim or other unix editors, and cygwin is not an option. I just want from the command line to say texteditor_name file1, modify it, save it etc, and all of these to happen inside the terminal, not in another interface etc.

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  • Monitoring / metric collection for system collectives that change a lot in time (a.k.a. cloud)

    - by Florin Andrei
    When your server fleet doesn't change a lot in time, like when you're using bare-metal hosting, classic monitoring and metric collection solutions (Nagios, Munin) work well. But if the number of systems varies a lot in time, and may in fact vary rapidly, classic software is more difficult to setup and use. E.g., trying to make Nagios (monitoring) keep up with a rapidly evolving cloud infrastructure can be cumbersome. Same for Munin (metric collection). It's not just the configuration, but the way the information is conveyed to the user, or displayed, is inadequate for the cloud. What are some possible alternatives that work well with the cloud? The goals are to collect and display metrics (analog to Munin), and generate alerts when certain metrics go out of bounds or when certain services are unavailable (analog to Nagios), and do everything in a cloud-friendly manner. Some cloud providers offer monitoring / metric collection as services, but not always, and if you use more than one provider you don't want to become too dependent of just one vendor. So provider-independent solutions are required. EDIT: I am asking this question in a general fashion - not limited to any given cloud infrastructure (like OpenStack), but in the general case of using arbitrary cloud providers.

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  • Non-USB powered laptop cooling pad?

    - by Andrei Rinea
    On my laptop (el-cheapo but pretty good) I have all my 3 USB ports occupied by devices in use (external mouse, external keyboard, 3G internet/flash drive/external hard drive/etc). I want a cooling pad for my hard-worked laptop but all seem to be powered by USB... This laptop is mainly stationary. Either is available a solution to power the USB-powered cooling pad other than connecting it to the laptop... ... either is there a non-USB powered laptop cooling pad?

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  • How would you simplify this command?

    - by Andrei Serdeliuc
    I'm quite new to strace / netstat / etc. I'm using this command to get a trace of the apache process handling my request (telnet), is there a way to simplify it a bit? sudo strace -o /tmp/strace -f -s4096 -r -p $(netstat -antlp | \ grep $(lsof -p `pidof telnet` | grep TCP | \ perl -n -e'/localhost:(\d+)/ && print $1') | grep apache2 | \ perl -n -e'/ESTABLISHED (\d+)/ && print $1') Thanks!

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