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• Enable System Beep in Ubuntu

  - by Melissa W

  I have tried and tried to get the system beep working, but with no success. I have selected System--Sound--System Beep--Enable Audible Beep (from the Gnome Desktop) I have tried from a Terminal window Edit--General Tab--Selecting terminal bell checkbox I have tried entering modprobe pcspkr at the command line. Trying echo -e '\a' or using the beep application - Nothing works! I know my hardware speaker works, because if on startup the battery is low it will beep. Update: It is a laptop computer. It is an IBM Thinkpad, iSeries. I did look at the modprobe blacklist, and pcspkr was not listed.

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• Trojan infection help please

  - by brandon

  Hey, I was browsing some websites and somehow obtained a trojan through some sort of silent download. Google Chrome started acting funny and wouldn't load web pages and neither would internet explorer. Only Firefox worked. I rebooted my computer and as usual logged into my email account as well as my bank account online completely forgetting about the infection. Could my information have been sent to the person or people or wrote the trojan? I downloaded Zone Alarm and took care of the issue, I'm just worried about when I absentmindedly logged into my email account and bank account online while I was infected.

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• As a programmer, what's the most valuable non-English (human) language to learn?

  - by Andrew M

  I was thinking that with my developer skills, learning new languages like French, German etc. might be easier for me now. I could setup the verbs as objects in Python and use dir(verb) to find its methods, tenses and stuff ;-) But seriously, if you're a professional developer, in my case in the UK, what's the best foreign language to learn from an employment perspective? I'm thinking, like Hindi - if all our programming jobs are getting outsourced to India, might as well position yourself to be the on-site, go-between guy. Mandarin - if the Chinese become the pre-eminent economy, the new USA, in ten or twenty years, then speaking their language would open up a huge market to you. Russian - maybe another major up-and-comer, but already closer to Western standards. More IT-sector growth here than anywhere else in the coming years? Japanese - drivers of global technology, being able to speak their language could give you a big competitive advantage over other Westerners But I'm just guessing/musing with all these points. If you have an opinion, or even better, some evidence, I'd like to hear it. If the programming things falls through then at least it'll make for more interesting holidays.

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• How do I fix my ethernet card losing network connection every few minutes with kernels 3.8.x?

  - by igoryonya

  I'm using Ubuntu 13.04. My laptop is Acer Aspire one 722-c58rr, and my ethernet card works for a few seconds at a time with kernels 3.8.x, however, kernels 3.5.x and below worked fine. On kernels 3.8.x, it works fine after boot for about a minute, then it looses network connection. When pinging to some address, it says: network address is unreachable, but it can ping it's own address. The address is statically configured. Everything was working fine before. I went to vacation, where I used WiFi and 3G connections, so I didn't notice that the problem occurred. Came back home, plugged in into the ethernet. It worked for a minute then stopped. Rebooting commutator fixed the problem. Tried to connect to a different commutator, same problem. Unplugging and plugging the cable fixes the problem for another minute. Disconnecting eth in Network manager and reconnecting it again, does the same thing. WiFi has no such problem. Tried to use a different cable that works fine on another computer, the same problem. Tried to boot with the lower kernel version, the same problem was happening until I got to the version 3.5 of the kernel series. Everything works fine on the kernel 3.5.x, but I don't want to miss out on the new kernel's features. Executing commands, when booted with 3.8 kernel series, give the following results: lspci| grep -i eth: 06:00.0 Ethernet controller: Qualcomm Atheros AR8152 v2.0 Fast Ethernet (rev c1) dmesg| grep eth1: [ 89.548291] atl1c 0000:06:00.0: atl1c: eth1 NIC Link is Up How do I fix it, while staying in the new kernel version?

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• vim + Ruby on Rails: how do you bounce among those 4-5 files you're currently working on?

  - by glitch

  I'm just starting to get familiar with vim, and I'd like to use it as my primary Rails development tool. As a Visual Studio and RubyMine user, I find a lot of stuff to be missing from the barebones vim installation, and therefore I went ahead and attempted to soup it up with plugins such as: rails.vim tcomment ruby-vim NERDtree and a couple of others. The issue is that I still don't quite get the average work-flow of using vim as one's Rails IDE. In RubyMine (again, similarly to Visual Studio) I have a series of tabs always open, containing the main files I'm switching among, and I additionally use NERDtree to open files from the folder structure. I tried opening them as new tabs, but the tab system in vim is just a lot more awkward than that in real IDEs. (I haven't seen vim pros in action, but I imagine that they'd not be relying on tabs, but using numerous splits instead, keeping at least a couple of files per split and switching between them with CTRL + ^. Is that the case?) So, at the end of the day, how do I really squeeze the most from vim if I want to be able to quickly access several files at once? Thank you!

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• using gmail to send mails from your php?

  - by ajsie

  i've read some threads here in SO that someone managed to use gmail's smtp server to send out messages from php script. so if php sends a mail to [email protected] it looks like this: php tells sendmail (smtp server) to send the message sendmail sends the message to gmail's smtp server gmail's smtp server sends the message to hotmail's smtp server so now i wonder, why should one use gmail's smtp server to send a mail? isn't it better just to send the message from sendmail to hotmail's smtp server? correct me if im wrong, but isnt all that requires for a mail to be sent a communication between TWO smtp servers, the senders and the receivers (in this case, hotmail)? and another question, why can't php just send the message directly to hotmail's smtp server, why does it have to go through a local smtp server? and why do you call it a smtp server when sendmail is just acting like a client to send a message and does not receive anything? would be great if someone could shed a light on this topic!

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• WiFi can't connect after suspend

  - by CyberOPS

  I've had this problem since Ubuntu 11.10 (my first install) but I was able to get around this issue with this answer. After I installed Ubuntu 12.04.1 I tried to use the same fix as before but I couldn't get it to work. I've also tried a couple other different fixes I found around the web but they didn't work. Basically here's what happens: I can see all the networks in my area. When I try to connect to one of them it never connects, it keeps disconnecting. After a little bit it asks for the password again but its already filled in correctly. If I hit okay it will do the exact same thing again. So does anyone know how I can get this fixed? INFO: Computer: HP Pavilion dv6t-6b00 CTO Quad Edition Entertainment Notebook PC Network Card: Intel® Centrino® Wireless-N 1000 OS: Ubuntu 12.04.1 (x64) dual booting with Windows 7 (x64) (*Not using Wubi*) Wireless Card Driver: iwlwifi UPDATE: I was about to reinstall with the DVD I made with the ISO from the official source but discovered the same issue happens on the disc's Ubuntu preview feature. I still was unable to fix it as before. I also tried the Xubuntu demo, and the same. Re installing the driver hasn't worked either.

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• LiveCD/USB boot issues with Ubuntu 12.04 on blank drive

  - by Richek

  Not sure how common this issue is, or even how badly I may be missing something simple, but I am a first time usuer having some serious problems. Some background: old HDD running Windows 7 developed too many bad sectors and is bricked. I'm attempting to install Ubuntu 12.04 on a fresh 1TB drive by booting from a liveCD USB flash drive. I've not been able to get past the initial menu screen, however, as the process stalls out shortly after selecting an option (both boot from drive and install to drive). I've tried multiple USB drives as well as CDs, modified the boot order, flashed BIOS, and even tried booting with only the flash drive and the keyboard connected with the same results.Typically what I observe is that the OS begins what I think is compliling, listing drivers and components before freezing on one. When the keyboard is plugged in, its the keyboard driver, before I flashed BIOS, it was a BIOS related item, now its an unknown entry. The computer seems to be reading the drive (idicated by USB light flashing or CD drive reving) for roughly 10 minutes with no progress, followed by the drives going quiet. Some spec info: Motherboard: ASUS P5Q Pro, BIOS version 2102 (latest version), Intel chipset CPU: Intel Core 2 Duo E8400 Wolfdale 3.0GHz help would be appriciated!

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• Structuring Access Control In Hierarchical Object Graph

  - by SB2055

  I have a Folder entity that can be Moderated by users. Folders can contain other folders. So I may have a structure like this: Folder 1 Folder 2 Folder 3 Folder 4 I have to decide how to implement Moderation for this entity. I've come up with two options: Option 1 When the user is given moderation privileges to Folder 1, define a moderator relationship between Folder 1 and User 1. No other relationships are added to the db. To determine if the user can moderate Folder 3, I check and see if User 1 is the moderator of any parent folders. This seems to alleviate some of the complexity of handling updates / moved entities / additions under Folder 1 after the relationship has been defined, and reverting the relationship means I only have to deal with one entity. Option 2 When the user is given moderation privileges to Folder 1, define a new relationship between User 1 and Folder 1, and all child entities down to the grandest of grandchildren when the relationship is created, and if it's ever removed, iterate back down the graph to remove the relationship. If I add something under Folder 2 after this relationship has been made, I just copy all Moderators into the new Entity. But when I need to show only the top-level Folders that a user is Moderating, I need to query all folders that have a parent folder that the user does not moderate, as opposed to option 1, where I just query any items that the user is moderating. Thoughts I think it comes down to determining if users will be querying for all parent items more than they'll be querying child items... if so, then option 1 seems better. But I'm not sure. Is either approach better than the other? Why? Or is there another approach that's better than both? I'm using Entity Framework in case it matters.

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• Why do certain replied emails missing threading when replied back in Mutt?

  - by yarun can

  I use Mutt for emails. I have threads enabled and I can see that most of the emails are threaded in Mutt. So that is all good. But sometimes I reply to an email and the answer(from other person) to my replied email wont be part of any threads. The thing is that when I reply in Mutt (which I use Vim to edit them), the subject parts keeps getting longer and longer with many "Re"s. That is the case with those emails with missing threads. I have: set strict_threads="yes" set sort="threads" set edit_headers=yes I am wondering if this has anything to do with Mutt or the person I am communicating over email. Could this one be the culprit? set metoo=yes Any suggestions?

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• Vista: "Change date and time" causes permissions error

  - by alexsome

  I double-click on the time in the bottom right to open the date and time panel. Then I click on the "Change date and time..." button (which has a shield) and I get the UAC dialog. I click "Continue", then am presented with an error that reads: Unable to continue You do not have permission to perform this task. Please contact your computer administrator for help. I will mention I have Comodo installed, but I have turned it off to test this out and I get the same results. All that I've found while googling were suggestions to turn UAC off, but I am interested in learning what the actual problem is. Thanks in advance.

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• Custom LightDM sessions to launch an application

  - by zachtib

  I'm trying to set up Ubuntu to act as a kiosk running a custom application, and am trying to get a LightDM session built to automatically start it. Ideally, I'd like to have two sessions available from LightDM. The default would start my application fullscreened, and the other would open a minimal desktop in case any configuration (mostly connecting to a wireless network) needed to be done. I've done a lot of research over the last week on custom LightDM & Gnome sessions. I've got a custom greeter written for LightDM that can start either session, but I can't figure out how to add a specific application to the Gnome session that is ultimately started without just putting a launcher in the global startup directory, and I don't want to do that since I don't want the application starting when they open "configuration mode". Another problem I've run into on my current workaround is that the application doesn't fullscreen properly, which makes me think I'm not starting enough of a gnome session (currently it's just metacity, no panel or anything else). Edit: I found a solution. See http://www.webupd8.org/2011/11/make-applications-autostart-only-in.html

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• Ubuntu live cd : black screen and blinking cursor

  - by IFasel

  I try to install ubuntu 12.04 on my computer. I can get to the purple screen on the live cd but then, if I choose "Installing Ubuntu", I have a black screen with a cursor blinking (and nothing else happens). My PC : acer aspire M3920, CPU i5-2300, 8 Gb RAM, NVIDIA gt 405. What I already tried : I tried with 12.04 and 13.04 daily build I tried with a live usb and with a live dvd I tried the following boot options : nomodset, acpi=off I googled a lot and it seems that it could be a graphic card problem. Do you know any other boot options that I could try ? UPDATE This is not a duplicate : I've tried all the common boot options (nomodeset, noacpi...) and it doesn't change anything. With the option "no splash" (instead of "quiet splash"), I can see what happens before the forever-blinking cursor : [sdg] no caching mode present [sdg] assuming drive cache : write trough ata8.00: excetion Emask 0x52 ... frozen ata8 : SError : { RecovData RecovComm UnrecovData...} ata8.00 : failed command : IDENTIFY PACKET DEVICE ... ata8.00 : status : { DRDY } ata8 : hard resetting link Does somebody know what it means ? N.B. astonishingly, Puppy Linux boots fine (but Debian, Fedora and Ubuntu do not) Solution In fact, it was not a graphic card problem. I had to disconnect the dvd drive and connect it to another free sata connector (I don't really understand why Ubuntu had trouble with this connector and Windows 7 not). After that, everything worked fine.

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• Is there an image viewer which *won't* show every file in the current folder?

  - by hawbsl

  Looking for a Windows image viewer which can be started from the command line but which allows me to specify/restrict which files I want it to page through. As parameters. The good 'ol Windows Picture Viewer would be fine except that it'll show/cycle through all the pictures in the current folder. In my case I want to say something like: someimgvwr.exe "cat.jpg" "cow.jpg" "cub.jpg" so that only those three files will be displayed and not "pig.jpg" which might also happen to be there in the same folder. Actually, if it allowed something like this: someimgvwr.exe "c*.jpg" that would be even more perfect. Do any of the many image viewers that are out there allow such a thing?

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• Another hibernation question

  - by GeekOfTheWeek

  I installed Ubuntu on my Windows 7 Sager laptop using Wubi. Hibernate (i.e. suspend to disc) is not an option from the power icon, only suspend, shutdown, etc. Hibernate is also not an option from my battery/lid close options. I understand that hibernation is disabled by default in Ubuntu 12.04. I tried running pm-hibernate but I get the following message: Looking for splash system... none s2disk: Snapshotting system and then the computer just hangs with a black screen. According to the documentation here if this fails then I can't enable hibernate but it offers no help in making pm-hibernate succeed. Could swap be my problem? It looks like I have very small swap: user@ubuntu:~$ cat /proc/swaps Filename Type Size Used Priority /host/ubuntu/disks/swap.disk file 262140 0 -1 The advice on SwapFaq is only for the author's set up (e.g. I don't have an Ubuntu install disk since I used Wubi) and he says that 'INFO: This will not work for 12.04, resume from hibernate work differently in 12.04.' Any advice? I really need to get hibernate working to use my laptop as a, er, laptop. Thanks

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• Checking version of Applications installed in ~/Applications with unknown username

  - by ridogi

  I'd like to check the version of Firefox through Apple Remote Desktop of all managed computers. I have written this, but it only checks for Firefox in /Applications /bin/cat /Applications/Firefox.app/Contents/Info.plist | grep -A 1 CFBundleShortVersionString | grep string | sed 's/[/]//' | sed 's/<string>//g' For standard users Firefox auto update breaks if it is in /Applications so I instead have it installed in ~/Applications I'd like to check that copy (if it exists), but I can't specify the path in the command since it is unique to each computer. For example: /Users/jon/Applications/Firefox.app /Users/arya/Applications/Firefox.app Presumably I want to use find and pipe the result to my command. This should work for 10.6 through 10.8

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• Sending files through ssh

  - by Frion3L

  I need to send files to a server using ssh. I have never used ssh so this is being really frustrating to me. Mention the client (me) is using windows and the server is using Ubuntu. I connected to the server using ssh2 ip, and then loging with an account I have. Now, I would like to send my files to a folder in the server, so, I moved to the folder and I used this command: scp test.txt user_name@host_direction server_folder_destination And it always return that it can't do 'stat' over test.txt, the file doesn't exist, and so. I'm assuming ssh2 can't see the file in my computer root (C:), so I tried to specifie more and added: C:\test.txt, but apear the same error. I don't know what is happening. Any hints please? Thanks

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• How to bring application to front every 15 minutes on Mac OS X Lion?

  - by johnnyb10

  I have a free or cheap little app called Desktop Task Timer LE that I've been using to track my time as I work on various projects. I'd like to have it pop up as the foreground app every 15 minutes to prevent me from forgetting to stop/change the timer after I've moved on to a different task. I know I can have the app launch using a script in Automator or AppleScript, but I don't know how to have that script fire off every 15 minutes. I've read about using Launchd and iCal, but I'm still not sure how to do it. (Actually, iCal is probably simple, but I'd like to avoid using it for this.) Any ideas? Also, a further feature would be to have it pop up after 5 (or x) minutes of inactivity on the computer. Not sure if this would work for my needs, but I'd like to test it if possible.

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• Boundary conditions for testing

  - by Loggie

  Ok so in a programming test I was given the following question. Question 1 (1 mark) Spot the potential bug in this section of code: void Class::Update( float dt ) { totalTime += dt; if( totalTime == 3.0f ) { // Do state change m_State++; } } The multiple choice answers for this question were. a) It has a constant floating point number where it should have a named constant variable b) It may not change state with only an equality test c) You don't know what state you are changing to d) The class is named poorly I wrongly answered this with answer C. I eventually received feedback on the answers and the feedback for this question was Correct answer is a. This is about understanding correct boundary conditions for tests. The other answers are arguably valid points, but do not indicate a potential bug in the code. My question here is, what does this have to do with boundary conditions? My understanding of boundary conditions is checking that a value is within a certain range, which isn't the case here. Upon looking over the question, in my opinion, B should be the correct answer when considering the accuracy issues of using floating point values.

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• Multiple workstation setups using virtualization - best solution

  - by Vazgen

  I'm looking to set up a server for my small startup. I have a few employees and would like to use my computer at home to provide them all with workstations. Each workstation should have the same collection of software installed but each user's workstation should be completely separate from the others. I need each user to be able to remotely log in to their workstation (using TeamViewer or something like it) and I want to be able to monitor their workflow from my screen. I suppose I need a virtualization solution. Can anybody recommend one with easy set up, I'm not a server administrator.

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• word 2010 Macro to name and Save file when opened

  - by Phillip Clark

  I have a word document template and will be using a hyper link in Excel to access the word file. The issue I need to resolve is making sure once it is opened a message field box is "popped" up asking the user to create a new file name ... (in this case the current date) for each time the file is opened. In the message pop when finished entering in file name they click yes and then the save screen comes up with the path/file type (macro enabled document) and the file name they have already entered in the pop up.. All they should have to do from the save screen is click ok and it saves the file to a certain path/folder on the C drive of the computer. Once they finish typing in their notes they click a active x button to save and close and they are finished. If anyone can help with this it would be fantastic.

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• Stop Windows 7 from installing critical updates

  - by Rico

  I have disabled Windows Update on Windows 7, but it still downloads and installs critical updates. As with Windows XP, these updates occasionally create problems. But in XP, once I disabled automatic updates, the OS did not override my settings and continue to download and install critical updates. After the most recent critical update to Windows 7, every time I boot up, the USB devices connected to a single port through 4-way hub don't install. I have to unplug the hub from the computer then plug it back in. Then the devices install. I can use System Recovery to solve the immediate problem, but I'd like to disable automatic updates entirely. Why does Windows 7 not respect my settings like Windows XP did?

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• Package temperature above threshold, cpu clock throttled

  - by drN

  I am running 64 bit Ubuntu 11.10 on an i7 with 8gigs of ram. I thought of putting this on askubuntu.com but decided that maybe the question has a much broader appeal. I have the following error message popping up when I run math simulations. CPUn: Core temperature above threshold, cpu clock throttled (total events = xxxxxxx) CPUn: Package temperature above threshold, cpu clock throttled (total events = xxxxxxx) I realize that this is a hardware warning message (machine check exception, correct me if I am wrong). How do I turn these messages off? Since it doesn't seem to have a detrimental effect of my calculations or my computer (presumably), I don't like it cluttering up my virtual console screen with hundreds of these messages.

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• Failover NIC with Windows 7 running Apache Server

  - by Benjamin Jones

  I have a Apache Server running on a Windows 7 Desktop for a internal website (Intranet). I am trying to figure out how I can make this system as failover safe as possible. One thing I want to do is use the 2nd NIC card that is currently disable. I only have one gateway address to my router. I do not have any computer running a Server O/S. If NIC1 crashes by chance(just humor me!), how could NIC2's IP take on the host name (I have mapped in host file) . I don't really care if the static IP of NIC2 changes seeing that the host name is the only thing I need. Could I add two IP's to the host file, with same host email and maybe create some script that will run IF NIC 1 fails? OR is there any failover software that will do this for me?

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• Why would the servers network type change from Private to Public?

  - by Phil Hannent

  Just found a fault with a server, other users have had problems connecting to it. The setting on the network card had changed from Private (domain) network to Public (the other option being Home). The switch to the network interface would have caused the firewall to block a lot of normal functions. I am guessing that since the event log showed no reason for the change that it might be due to a complete shutdown we had recently where someone powered up the machines, however the domain controllers might not have been booted up first. Any confirmation that this might be the case?

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