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  • How to properly shutdown or reboot a Unix/Linux server

    - by hatorade
    What is the correct way to turn off a Unix/Linux server? From my googling, I have learned (hopefully) the following: shutdown: I should use this, with the parameter -h to halt, or the parameter -r to reboot halt: halts the computer (stops the processor? does this physically turn the power of the computer off?). I think this will call shutdown if not at init0, otherwise just halts. reboot: if not at init6, calls shutdown, otherwise just reboots the computer. if all that is correct, then the only thing I can't figure out is what exactly 'halt' does. Does it just stop the processor but not turn the computer physically off? How do I "poweroff" the computer? Thanks

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  • Problem with blue-sceens

    - by Oystein
    Hi I have a problem with my computer. I get bluescreens a lot. I get different bluescreen-codes everytime, and this happens randomly. This can happen when I boot my computer, when I'm surfing on the internett, when I'm away from the computer and are logged out... I tried to disconnect everything that was connected to my computer, beside the monitor. That didn't help. I have reinstalled Windows, changed memory, changed video card, but nothing of this helped, I still get bluescreens. I guess the problem here is the mothercard, CPU or HDD. But I want your opinion before I order anything new to my computer. Can you tell me what the problem is?

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  • Download the Spectacular Skies Theme for Windows 7

    - by Asian Angel
    Freshening up the scenery on your desktop every so often can help make the time spent in front of your computer more pleasant. Today’s featured theme will add a dramatic look to your desktop with a terrific set of Spectacular Skies wallpapers. The theme comes with eleven images featuring the awesome, eye-catching photography of Marco Muller. Download the Spectacular Skies Theme [via Softpedia] 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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  • trying live-usb 12.04.1 image on an old desktop

    - by 213441265152351
    I am trying to load Ubuntu 12.04.1 32-bit desktop image on an old desktop computer. The system shows the initial menu, but after a while, I get an error like the one in the following two screenshots (it takes a few seconds to go from one to the other in the screen): I tried to load it using the different USB ports at the back of the computer, just in case, and I get basically the same error. Find another screenshot from another try: Any ideas what might be happening? NOTES: I checked the md5sum of the iso file to be e235b63c02644e219b7bf3668f479c9e *ubuntu-12.04.1-desktop-i386.iso. I did the 'Test' on the laptop where I created the USB drive, and it loads up correctly. The desktop computer in question is an old AMD Duron 1800MHz with 512MB RAM. I ran a memtest on the computer, and all went fine.

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  • Is it possible to sync two computers without storing the files on a server?

    - by William
    I have a family member currently using Windows live mesh to sync a relatively large amount of files between computers. It is way over the Ubuntu One 5 GB limit and the Live Mesh 2 GB limit. However, Live Mesh gives him the options of syncing all the data he wants without storing it on Microsoft's servers. Does Ubuntu One have an equivalent option, performing just the sync computer-to-computer and not computer-to-server and server-to-computer? Do you have other recommendations? It does not necessarily have to be Ubuntu One, but I need it to be cross platform, working across Windows and Ubuntu. We also have computers outside of uour home network we need to sync to. This is one of the few things keeping him from switching to Ubuntu, and I'd be very grateful for any help.

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  • Compiz runs almost at 100% and the system is slow, what can I do?

    - by Heiner Valverde
    My system became very slow out of the sudden, yesterday Compiz was running extremely smooth, today it started working very slow and slowing the computer. What I've done so far was to resize my swap partition to 6 gigabytes (my computer has 3 gigabytes of RAM), before it was on 5.1 gigabytes, so I though that was the reason of this but still not. Also I tested running only metacity by running metacity --replace and also with Mutter. With metacity works really great no problem but, in the other hand, with mutter the computer works slower than running compiz instead. I am using the Nvidia driver version 173.14.28 and my X Server version as reports the NVidia X Server Settings is the 11.0. My Linux kernel running on this computer is 2.6.35-25-generic and my ubuntu version is 10.10. Any help will be appreciated.

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  • First ATMs programming language

    - by revo
    First ATMs performed tasks like a cash dispenser, they were offline machines which worked with punch cards impregnated with Carbon and a 6-digit PIN code. Maximum withdrawal with a card was 10 pounds and each one was a one-time use card - ATM swallowed cards! The first ATM was installed in London in the year 1967, as I looked at time line of programming languages, there were many programming languages made before that decade. I don't know about the hardware neither, but in which programming language it was written? *I didn't find a detailed biography of John Shepherd-Barron (ATM inventor at 70s) Update I found this picture, which is taken from a newspaper back to the year 1972 in Iran. Translated PS : Shows Mr. Rad-lon (if spelled correctly), The manager of Barros (if spelled correctly) International Educational Institute in United Kingdom at the right, and Mr. Jim Sutherland - Expert of Computer Kiosks. In the rest of the text I found on this paper, these kind of ATMs which called "Automated Computer Kiosk" were advertised with this: Mr. Rad-lon (if spelled correctly) puts his card to one specific location of Automated Computer Kiosk and after 10 seconds he withdraws his cash. Two more questions are: 1- How those ATMs were so fast? (withdrawal in 10 seconds in that year) 2- I didn't find any text on Internet which state about "Automated Computer Kiosk", Is it valid or were they being called Computer in that time?

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  • How to end game properly in unity? [duplicate]

    - by user3889649
    This question already has an answer here: Why do I seem to lose control of my computer when full screen Unity game loses focus? 1 answer I have made a game in unity free. The game is functioning properly but if your computer receives any kind of notification, the game minimizes automatically and stops to work completely. Along with that, my computer freezes completely and I need to restart each time. Is there any solution to this problem in unity ?

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  • How to solve my black screen at boot?

    - by Juanillo
    I've got a friend with a weird problem. When he starts his computer the screen is completely black until the computer is completely started. So the screen is black until it suddenly shows the Windows desktop. He said that this is happening since a technical service repaired his computer, but that repair is not now in warranty. Recently the computer stopped working, but as the screen is black he cannot access to BIOS or start in safe mode (by pressing F8). When he inserts the Windows Vista DVD the system doesn't boot from DVD (it mustn't be configured in this way in the BIOS). Maybe there´s a problem with the hardware (maybe the graphic card)? Can anyone explain a reason why the screen is black during start-up? Any idea of what to do with the computer to restore it?

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  • Other people's files showing up in rhythmbox

    - by Avery Boyer
    I have my computer connected to a college network, and right now files that belong to other individuals on campus are showing up under Shared in rhythmbox. This is driving me up the wall, I absolutely despise the idea that files are being thrown around on the network and that other people's s*** is showing up on my computer, and that they may be able to see my files as well. This is a very, very serious problem as far as I am concerned and I want to know how I can ensure that I am sharing nothing with the network in the way of files on my computer and that no one else's files are showing up on my computer.

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  • How can I run Ubuntu if it's not on my main drive?

    - by Stephen
    I have a 120GB SSD and a 750GB HDD in my computer. My SSD has Windows 7 installed and my HDD has Windows 8 installed. When I boot my computer normally, I boot it to my SSD. I went through the installation process, putting Ubuntu on a separate partition on my HDD. When I restarted my computer, it didn't give me an option to boot to Ubuntu. If it helps, I believe I used ext4 and only set it to '/'. If I want to make Ubuntu bootable from my computer, how would I go about doing that?

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  • How to get Apache web server to run on other computers?

    - by Eric
    I have been using Apache Web Server for a while now and one thing I have noticed is that outside of my computer I can not access it. I use my Apache server for PHP development on my computer, but I would like to access stuff I have made outside of my computer. I am on a linksys router network. I usually run it of http://localhost/ or http://127.0.0.1/. I IPCONFIGED my computer and got 192.168.1.105 so I went there with my browser and got the page just fine. I tried doing this on another computer on the same network but it didn't work. How do I fix this? Sorry about the bad wording. I am in ah hurry Information you might need to know: Server: Apache 2.2 Operating System: Windows 7 ULTIMATE

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  • How to improve my backup strategy (rsync)?

    - by GUI Junkie
    I've seen the QAs about backup solutions, but I'm asking anyway. One because it's a personal situation I haven't solved yet, and two, because the answer can be useful for others. My situation is rather simple. I have two computers with two users and one external hard-drive. I want to sync/backup a shared directory. Currently I use rsync with the -azvu options to sync to the external drive. My problem is the round-trip. All deleted files are restored! Using rsync I'm doing Computer A --> External disk --> Computer A Computer B --> External disk --> Computer B (I should probably do External disk -- Computer A as a last step) I've seen 'bup' mentioned and other QA talk about dropbox + rsync... Another option is maybe to delete files from rsync? Can my running backup strategy be improved in some other way?

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  • "Unknown Filesystem" error without CDROM

    - by Utku Tarhan
    I've got a problem with Ubuntu 12.04 LTS. At first I ran mount command on terminal. Then I restarted my computer. After that, when my computer opened there is writing this: error: unknown filesystem grub rescue I searched commands and I found ls command. I tried it and I got this: (hd0) (hd0,msdos5) (hd0,msdos1) My computer's DVD driver is broken and I tried to boot Ubuntu on USB but it doesn't worked. My computer's specs: PC Name: HP Presario F780ET Processor: AMD Turion 64 X2 Mobile Technology TL-60 Ram: 2GB Ubuntu Version: 12.04 LTS

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  • Black screen during startup

    - by Juanillo
    Hello, I've got a friend with a weird problem. When he starts his computer the screen is completely black untile the computer is completely started. So the screen is black until it suddenly shows the windows desktop. He said that this is happening since a technical service repaired his computer, but that repairment is not now in warranty. Recently the computer stopped working, but as the screen is black he cannot access to Bios or to secure start-up (by pressing F8). When he inserts the Windows Vista DVD the system doesn't boot from DVD (it musn't be configured in this way in the Bios.) Maybe there´s a problem with the hardware (maybe the graphic card). Can anyone explain a reason why the screen is black during start-up? Any idea of what to do with the computer to restore it? Thanks.

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  • Should I continue to pursue programming based on my experience?

    - by El Be
    The reason I ask this question is because I am not sure my troubles come from a lack of confidence, or something much deeper like lack of passion. I'm hoping experienced programmers and developers can help identify the cause of my troubles. To be brief my undergraduate major was in Computer Science, but in a small school and I had the highest gpa in my year in computer science. The first time I ever programmed was once in the 5th grade (using logo) and when I was a freshman in college. I enjoyed programming when I was in school. Then I did an internships where I was expected to produce image processing software and program microchips. I was unsuccessful and produced little results and I hated the job, because I had to figure out everything for myself, did not have any help, and there was a lot of pressure to produce results. Although I tried I could not figure out what to do and was stuck all the time and made me dislike the job. When the internship ended I went to a PhD program for computer science at a prestigious computer science school. I had a very hard time with the course, met people who have been programming since they were 6 and made plenty of applications in their spare time (which I never did, although I tried). I even met many sophomores who understood more than I did. The combination of this and other things have made me feel that programming is not for me, but sometimes I consider a career in programming. I still consider programming as a career because of the career potential (not only just because of money). Based on my experience do you believe my confidence has just been shaken and I should continue to prepare for a programming career, or do you see a lack of passion and it would make it tough to continue programming. thank you for reading and for your advice Thank you for everyone's advice so far! Also: I dropped out of the ph.D program for computer science and switched to a master's in computer graphics. Its more applied, but I still find it hard to be motivated (due to either lack of confidence or passion), but since programming is such a big field I am looking for that niche area that I feel good programming in.

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  • Java and what to do with it

    - by SterAllures
    I've been browsing through several websites and several topics on this website. Now I'm just a starting programmer and I want to make a good decision. From what I understand is that Java is used alot for server stuff, and web applets but not really for computer applications running on a client, it's also used for Android programming and several other mobiles. I'm really interested in Android programming, I really love to program for mobile devices, in this case Android because I really think it has a lot of potential and I don't like the iPhone. If I want to program on Android I have to learn Java (aside from Mono). but if my decision changes over the next couple of years I don't think Java is the right language to get a job that programs computer applications. I think I get a job where I have to program server stuff, rather than computer applications. That's why I think C# is a good choice. I can program for Windows Phone 7 (I hope that will get big). and I have the feeling C# is more widely used for computer applications. so I think C# is more versatile looking at Mobile programming and computer programming. Or am I totally wrong thinking this?

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  • Open a custom remote powershell remotely

    - by Yann
    I have 2 computers. On the computer A, I have a custom module written in C# for powershell 3.0 and installed via a MSI. I also have a shortcut that open powershell with the module already loaded. I can just double click on my shortcut and run my command Do-Something on this computer without any problem, like the Exchange Server powershell. But now I would like to do it from a remote session on computer B in C#. So my question is, how can I open a remote powershell session to computer A with my module already loaded and the shell configured so I can just run my command and obtain the same result than if I run it on computer A?

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  • Remote Software Solution that Acts as a Client

    - by Richard
    I am looking for something that I am not sure exists. I have a remote computer that will not allow incoming traffic due to ISP blocking of ports(basically double NAT situation that I am unable to get around). I am wondering if I have a computer acting as a client, is there any solution out there that will allow remote access to the computer. I do have other servers on the net that have static IP's that the computer could initiate a connection with. I am thinking of using Debian Linux, However computer is not built yet so OS is not overly important at this point.

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  • I.T. degree for game programming?

    - by user6175
    Hi, I am a 19 year old who has always been interested in video & computer games. I developed the interested for game programming about three months ago and started researching on the profession. The only degrees always suggested on the internet and in books are those of computer science, physics, mathematics, & game development. BSc Information Technology has been my major for the past two years; and even though my university teaches we the I.T. students computer programming (in c++, c#, java) and offers us the opportunity to undertake some computer science courses of our choice in addition to the regular I.T. courses, I am feeling insecure about my prospects in getting into the profession. My question is: Will a game development company hire me if I exhibit good math, physics and game programming skills with an I.T. degree? If NO, will I have to obtain an MSc in a much more related course.

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  • Ubunto 12.10 Boots to purple screen

    - by Ric
    I know this question has been tackled in a couple different threads but I've tried what I could from those and have not resolved the issue. I have just a basic understanding of this system so feel free to talk down to me or explain this like you would to a 5 year old. Let's start from the beginning. My son has a computer built by an IT friend of mine (we moved so he can't help any more). It had Windows XP running on it and it just stopped working correctly. This same friend had built a laptop for me with Ubuntu which I liked so I thought I'd put a new OS on my sons computer and it may work better. I downloaded Ubuntu 12.10 onto a USB drive and loaded it onto his computer. I followed all the prompts, it installed, I restarted the computer, it gives me the option of which OS to pick. I pick Ubuntu and it seemingly loads. The desktop comes up with just the basic pinkish Ubuntu background but that is it. There are no icons. I can't right click anywhere to create a file. Left clicking the mouse does not create a square when moved. Alt + F2 doesn't do anything. I can open a terminal but any of the commands I have seen in previous threads do not correct any issues. What else can I do, or what resources are available to fix this problem? I don't know if there are additional files on the USB drive that I need to access or what. Also, one of the problems we were having with my sons computer is that windows would only load to a blank screen. It runs accordingly in safemode and my install of Ubuntu was through safemode of Windows XP.

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  • Impossible quandrary involving UCK, graphics card, and Nvidia drivers

    - by InkBlend
    I have a computer that I want to install Ubuntu on. It is an older gaming computer with a Nvidia graphics card. When I attempt to boot any unmodified Linux distribution onto it, I get a "Boot error" message, which I assume is because the computer uses a discrete graphics card, which the Linux kernel does not have support for. Ordinarily, that would not be a problem, as I would just plug the monitor into the VGA port built in to the motherboard. However, this particular model of motherboard does not have an on-board graphics connector, so I am stuck with using the graphics card connection. That further would not be a problem; all I would have to do would be to use UCK to create a customized Ubuntu image that included the graphics drivers. Except for the fact that the Nvidia Linux drivers must be installed on a computer with a Nvidia graphics card present. So while using UCK, the driver installer fails with a message stating that there is no Nvidia graphics card present. How do I get Ubuntu on my desktop computer?

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  • Why has my computer started to make noises when I turn it on after I put it into sleep mode for the first time a week ago?

    - by Acid2
    I would usually have my pc on all day and fully shut it down at night time before I went to bed. I decided to put it into sleep mode instead the other day and everything was fine but when I woke it from sleep, I was presented with the blue screen of death and it started with some weird noise that sounded like some spinning part was off balance or possibly hitting something periodically. Sounds like it could be a fan or maybe the HDD. I'm not sure why sleep mode would mess up the hardware. Anyway, now sometimes, randomly, when I turn my computer on from a previous shut down, I still get to hear the noise but the start-up is normal. Sometimes I don't hear anything for the entire duration while I have it on and sometimes it goes away after a few minutes and sometimes it doesn't and I have to restart, like it isn't going away right now. I can hear the noise as I type this. Anyone got possible solutions? I don't want to open the system and mess up other stuff. I'm also not sure if I should take it somewhere to have it fixed - it might not make the noise then and work like normal and nothing would seem like needing to be fixed. Add: I'm running Windows 7, if that's of any relevance.

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  • Looking for a way to give acces to some programs for a limited period of time

    - by R. L.
    I install Linux on computers and add to the base installation some other programs. This computer then is sold to a customer as a larger instrument. Now, I am looking for a way to implement some kind licence for this computer so the user can use it for a year and then he would need to "renew" the licence. It is not my intention to lock the whole computer , blocking or deleting some folders should be enough. The only way I could think of was to setup a cron job that deletes my programs, or a second way would be to set the user account to expire after a year. But I give the computer with sudo privilages so the above solutions wouldn't be 100% safe. It is not my intention to encrypt any code, I just want block the possibility to execute certain programs. Is there a way or a program that would "licence the computer" ? Ideally it should be invisible to the user. After one year the program stops working and "he doesn't know why."

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