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• Wireless connection disconnects and reconnects with a Netgear WNA1000

  - by William Berkenkamp

  Ever since I made the permanent switch from Vista to Ubuntu i've had wireless connectivity problems. From watching the network manager when it disconnects it seems like it turns off the receiver for some reason. Could it be bad drivers? I used their install software and the site doesn't really offer driver downloads. The adapter is a Netgear WNA1000 if memory serves, and I don't know much about the router except that it's a Motorola Surfboard. And I figure this might help a bit *-network description: Ethernet interface product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:01:00.0 logical name: eth0 version: 01 serial: 00:1b:b9:a7:39:a4 size: 10Mbit/s capacity: 100Mbit/s width: 64 bits clock: 33MHz capabilities: pm vpd msi pciexpress bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=N/A latency=0 link=no multicast=yes port=MII speed=10Mbit/s resources: irq:40 ioport:d800(size=256) memory:feaff000-feafffff memory:feac0000-feadffff *-network description: Wireless interface physical id: 1 bus info: usb@2:1.1 logical name: wlan0 serial: 00:26:f2:8b:fb:38 capabilities: ethernet physical wireless configuration: broadcast=yes driver=carl9170 driverversion=3.2.0-24-generic-pae firmware=1.9.4 ip=10.0.0.36 link=yes multicast=yes wireless=IEEE 802.11bgn I have tried installing WICD and it didn't fix the problem. Any help would be greatly appreciated. This problem is greatly limiting what I can do with my computer.

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• HFS partition mounting read-only

  - by Sid

  Hey, I have an external Western Digital Hard drive with two HFS partitions with journaling disabled. When I connect it to a computer running Linux (Debian or Ubuntu), frequently both partitions are mounted read-only. In the past, mounting them on my Macbook and executing the command to disable the journaling often worked (even though it would tell me that journaling was already disabled) but I would love to have a solution which works every time. Thanks! Edit: In light of Chris Johnsen's comment below - my question is how to mount the filesystem read+write on Linux since it is not automatically doing so itself

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• Server 2008 Active directory file sharing Restriction

  - by Usman

  My network scenario is: Two location connected each other through Wireless towers. 1st network ip address are 10.10.10.1 to 10.10.10.150 2nd network ip address are 10.10.10.200 to 10.10.10.254 Both location using their own ACTIVE DIRECTORY (MS SERVER 2008) and share their data with each other network through file sharing. My Problem is that every single client can explore the whole network. by simply typing \computername. i want to implement some restriction on network regarding file sharing. i want to restrict 1st Network Clients to open 2nd network Computer or server. Is there have any Group Policy or Folder permission scenario that i implement on my both network..

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• Poor CPU usage under Ubuntu

  - by remek

  Hello, I just upgraded from Ubuntu 9.10 to Ubuntu 10.04 and I am now experiencing a strange problem. My computer has a quad-core processor, and when I am running several processes simultaneously, none of the cores is fully used. Before the upgrade, when I was running 4 processes, each of them was using 100% CPU (I could see that with the 'top' command). But now, CPU usage oscillates and is always pretty low. Has anybody an idea about this problem? Is it due to Ubuntu or to the program I am running? Thank you very much in advance for your help! Best, remek

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• Powershell Foreach-Object with if statement not working - help!

  - by Dmart

  I have a batch file that takes a computer name as its argument and will install Java JRE on it remotely. Now, Im trying to run this Powershell script to repeatedly call the batch file and install Java on any system that it finds without the latest version. It seems to run error-free, but the statements inside the if code block never seem to run - even when the if conditional test evaluates to true. Can anyone look at this script and point out what I'm possibly missing? I'm using the Quest AD cmdlets, and BSOnPosh module. Thank you. get-qadcomputer -sizelimit 0 -name mypc* -searchroot 'OU=MyComputers,DC=MyDomain,DC=lcl'| test-host -property name |ForEach-Object -process { $targnm = $_.name $tststr=reg query "\\$targnm\HKLM\SOFTWARE\JavaSoft\Java Runtime Environment" /v Java6FamilyVersion if(-not ($tststr | select-string -SimpleMatch '1.6.0_20')) { $mssg="Updating to JRE 6u20 on $targnm" Out-Host $mssg Out-File -filepath c:\install_jre_log.txt -inputobject $mssg -Append cmd /c \\server\apps\java\installjreremote.cmd $targnm } else { $mssg ="JRE 6u20 found on $targnm" Out-Host $mssg Out-File -filepath c:\install_jre_log.txt -inputobject $mssg -Append } }

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• What Kind of Spam is This? Testing Blog Comment Limits

  - by Yar

  I received this comment on one of my blogs today (on blogger.com): Easily I agree but I about the post should acquire more info then it has. It's the third in a series. Before there was: I will not acquiesce in on it. I over precise post. Expressly the title attracted me to be familiar with the sound story. and before that Your blog keeps getting better and better! Your older articles are not as good as newer ones you have a lot more creativity and originality now keep it up! It is obviously computer-generated (well, not this last one). The comments are from Anonymous, so they're not trying to legitimate a user on Blogger. Is this a spam attack? What might its goal be? Or are they just testing my blog to see if I reject or not? Does this kind of "attack" have a name?

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• Ubuntu is not detecting my android device

  - by user3514160

  I am new to android. I have just downloaded and installed android sdk. Now when I run the application from eclipse, my device is not getting detected. I have googled and was brought up with this as my solution, but that also didn't worked. Here's the 51-android.rules SUBSYSTEMS=="usb", ATTR{idProduct}=="0bb4", ATTR{idProduct}=="0c03", MODE="0666", GROUP="plugindev", OWNER="<username>" After that I rebooted my laptop, and ran this command: username@laptopname:~/Android/adt-bundle/sdk/platform-tools$ adb devices The output i get is: * daemon not running. starting it now on port 5037 * * daemon started successfully * List of devices attached ???????????? no permissions EDIT crazydeveloper@crazydeveloper:~$ lsusb Bus 002 Device 004: ID 0bb4:0c03 HTC (High Tech Computer Corp.) Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 003: ID 04f2:b337 Chicony Electronics Co., Ltd Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub crazydeveloper@crazydeveloper:~$ ls -l /dev/bus/usb/004/ ls: cannot access /dev/bus/usb/004/: No such file or directory crazydeveloper@crazydeveloper:~$ Edit: 2 After the answer submitted here's the output that i got: crazydeveloper@crazydeveloper:~$ ls -l /dev/bus/usb/002 total 0 crw-rw-r-- 1 root root 189, 128 May 7 09:45 001 crw-rw-r--+ 1 root root 189, 129 May 7 09:45 002 crw-rw-rw- 1 root plugdev 189, 130 May 7 09:48 003 I am using Micromax Canvas 2.2 A114 - Android Version 4.2.2 Please help me. Thanks.

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• Floating point undesirable in highly critical code?

  - by Kirt Undercoffer

  Question 11 in the Software Quality section of "IEEE Computer Society Real-World Software Engineering Problems", Naveda, Seidman, lists fp computation as undesirable because "the accuracy of the computations cannot be guaranteed". This is in the context of computing acceleration for an emergency braking system for a high speed train. This thinking seems to be invoking possible errors in small differences between measurements of a moving object but small differences at slow speeds aren't a problem (or shouldn't be), small differences between two measurements at high speed are irrelevant - can there be a problem with small roundoff errors during deceleration for an emergency braking system? This problem has been observed with airplane braking systems resulting in hydroplaning but could this actually happen in the context of a high speed train? The concern about fp errors seems to not be well-founded in this context. Any insight? The fp is used for acceleration so perhaps the concern is inching over a speed limit? But fp should be just fine if they use a double in whatever implementation language. The actual problem in the text states: During the inspection of the code for the emergency braking system of a new high speed train (a highly critical, real-time application), the review team identifies several characteristics of the code. Which of these characteristics are generally viewed as undesirable? The code contains three recursive functions (well that one is obvious). The computation of acceleration uses floating point arithmetic. All other computations use integer arithmetic. The code contains one linked list that uses dynamic memory allocation (second obvious problem). All inputs are checked to determine that they are within expected bounds before they are used.

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• tools to check password security

  - by tombull89

  Hello again. I'm after a tool to test how long a password could stand up to a hacking/cracking technique such as brute force as two passwords that are critical to a work system is one word that is in the dictionary, and another is a word in the dictionary with a capital letter and a number instead of a letter. I'd prefer it to be offline and free that you can run on a computer to see how long the password will hold out. Maybe even at the windows login prompt but I realise such programmes may be shady and erring on the side of illegal. Anybody have any suggestions?

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• Ubuntu 11.10 loads from live usb fine, but boots to black screen from harddrive. Why?

  - by Estel

  A few days ago I had a hard drive failure, which was running Windows XP (32-bit) just fine. The second hard drive in my computer held a few unimportant files, so I formatted it in the Ubuntu setup and installed 11.10 without a hitch. I had been using it for about a week, but decided to install Windows 7 (64-bit) in order to utilize Networking with my home server (running Windows Server 2000). My system is 64-bit based, and thus I had no problems installing other than a basic RAM error that required me to remove my RAM down to a single stick. I played with the settings in Windows 7 for around an hour before I shut down. After reinstalling the RAM, Windows 7 would not boot. In this, I then assumed that something about my system was rejecting Win7 and I reinstalled Ubuntu. However, now Ubuntu (11.10) boots into black screen, and I've already attempted activating the grub menu with the shift key, and following steps listed here: https://wiki.ubuntu.com/X/Troubleshooting/BlankScreen but nothing seems to work. I've reinstalled twice now, with the same result each time. Now, the very odd part about this whole scenario is that the USB I installed from has no problems booting as a live USB. This puzzles me greatly, because the hard drive boots straight to black screen and the live USB loads normally. At this point, my only theory is that the boot sector of the hard disk was somehow corrupted with Win7, and that Ubuntu was unable to completely write through. I used Darik's Boot n Nuke to wipe the drive, but was met with an error, this also puzzles me because the hard disk has no promblems reading or writing. Any suggestions/comments are appreciated. If you have a theory, I will be more than happy to oblige. Additional information: Intel Core2 Duo e6400 2.13GHz nVidia GeForce 7-series (7900 GS) 4 GB DDR2 333MHz (2x 2GB) Dell XPS 410 BIOS Revision 2.5.3

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• VNC-like remote control over home network

  - by Widor

  I'm aware of how to use VNC to share screens or grant remote control of your machine over the internet by using VNC or one of the web-based "go to my pc" type services. If two computers are connected to a router (i.e. standard home network), is there an easier way of viewing and controlling one computer from the other? I'd like to avoid going outside the LAN, onto the internet, then back in if possible. Both machines are Windows XP, but I'm not looking for Remote Desktop by the way.

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• Auto-connect Bluetooth headphones in Windows 7 64bit

  - by CptSkippy

  I have a pair of bluetooth headphones that I've successfully paired with my Windows 7 64bit machine and audio plays through them without a hitch. On the Device Stage under the properties of the headphones in troubleshooting it shows "last connected" as "currently connected" even if I power cycle the headphones or after a reboot of my computer. So the Windows bluetooth stack has no trouble finding them. The problem I have is that whenever the headphones reconnect to my pc they show up as disconnected in the Sound Settings and no sound is routed to them until I manually connect them. I have to go into Sound Settings, then from the Playback tab right click on the headphones and choose the Connect option. Is there a way to make the Sound Settings connect automatically whenever the headphones are available to Windows?

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• Windows 2008 Server Unable to activate with other methods

  - by matt king

  I'm trying to activate windows 2008 server SP2 today since the activation trial is done. I do not have an internet connection with this server so I can not activate online, and with the other servers in this farm I've been able to run the slmgr -ipk xxxxx-xxxxx-xxxxx-xxxxx-xxxxx and then it would open up the activate by phone method and we would just activate that way. I say again, I don't have an internet connection so I can not do the online activate. If I do the slui 4 it brings up the activation window but show me other ways to activate is still greyed out. I've disabled the NIC on this Hyper-V server and I still can not get the other way to activate to show up... Anyone have any ideas? This computer is one of my AD servers so.. it being in notification mode kind of sucks. Thanks.

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• Interactive mode of PSExec not working for console application

  - by Focker

  I am trying to use PSExec to kick off a console application on a remote computer in an interactive state. When I run something like this: PsExec.exe -s -d -i 1 \\MyServer notepad.exe It launches Notepad just fine. If I then run this: PsExec.exe -s -d -i 1 \\MyServer C:\Temp\MyConsoleApp.exe It launches the command windows but doesn't do anything as far as I can tell. As in, when I run my console application locally, it displays a "heartbeat" every 5 seconds, but when I run it remotely, nothing is displayed in the command window. The .exe does show up as a process in Task Manager. Any ideas?

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• Two users using the same same user profile while not in a domain.

  - by Scott Chamberlain

  I have a windows server 2003 acting as a terminal server, this computer is not a member of any domain. We demo our product on the server by creating a user account. The person logs in uses the demo for a few weeks and when they are done we delete the user account. However every time we do this it creates a new folder in C:\Documents and Settings\. I know with domains you can have many users point at one profile and make it read only so all changes are dumped afterwords, but is there a way to do that when the machine is not on a domain? I would really like it if I didn't have to remote in and clean up the folders every time.

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• Can't install newer NVIDIA display driver on Windows 7

  - by Mr.X

  I'm using Windows 7, and the latest version of NVIDIA display driver I can install on my computer is 275.33 (or 266.58, I can't decide now, see below). When installing newer version of the driver (e.g. 275.50 and 280.26), the installer always fails at "Installing NVIDIA Control Panel", then Windows 7 reverts to 275.33 (the newest stock version?). I tried to find installation logs but couldn't find it. I tried to completely delete (in fact I renamed) c:\progra~1\nvidia~1 folder but still couldn't install. How to resolve this problem? Any help is appreciated.

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• Is there a simple way to make my laptop always turn on muted? [closed]

  - by tehp

  Possible Duplicate: How to mute the sound output on Windows Start up? I carry a laptop around. Sometimes I'll open it up in meetings or other quiet settings. The speaker is interrupted by the windows startup noise or Pandora refreshing it's page and starting to play a song or some other random computer noise. Is there a simple way to mute the sound on startup/resume/whatever? Kind of like the BIOS option to turn on or off the Num Lock.

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• How do I fix broken installation?

  - by Daniel

  Let me start off by saying I'm dual booting 11.04 and Windows 7 on a Thinkpad T61p. The problem may have arisen when I hit the power button during normal startup. I'm fully aware how stupid this is. I don't know why I did it. I did it. Now, I can't get in to Ubuntu. Windows works fine. But when I try to start Ubuntu normally, it seems to run some checks, and does not start up. Sometimes, I see a black screen, and it tells me that it's running certain checks, and then, [ok]. Like... Battery Check Somethingorother [ok] It'll give me 1-5 of these. And then it just does nothing, and I have to turn it off. When I try to start in safe mode... I tried low graphics mode, and after going through a couple of dialogue boxes, I'm brought right back to the safe mode dialogue box. And if I hit 'resume,' a shell pushes up (still that grey on black "your computer is broken" type shell) and asks me to log in. I do, and try to run unity. It tells me something along the lines of: WARNING no DISPLAY variable set and then sets it to " :0" , which doesn't work. And then I can't do anything, really, and I have to restart. (I don't know how to do this from the command line, so I just hard reset. That command would be helpful). Does anybody have any idea how I can get Ubuntu working right again? FTP is less pleasant in Explorer than it is in Nautilus or w/e it is now.

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• HTTP, HTTPS and FTP is not working but SMTP and IMAP are working.

  - by nWorx

  Yesterday on a computer of a friend a strange thing happened. after booting the ports fo http, https and ftp are closed but e-mail is still working. in the control panel the windows firewall seems active even if he tries to deactivate it. I have a suspision that it is the faul of norton internet security 2010, we have tried to uninstall it, but the uninstallation did not work. when using the removal tool from symantec it just goes to 23% and then it crashes. the process ccSvcHst.exe is still running. How can I safely remove the rest of Norton Internet Security? Edit: Norton Internet Security 2010 is sucesfully removed, but still no connectivity...

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• What happens if I run caspol.exe multiple times?

  - by Maclovin

  Hi there! Caspol.exe is used to modify security policy for the machine policy level, the user policy level, and the enterprise policy level. What I use it for, is setting up av trust between the client and an area on some server. I went through the scripts on the server, and found an interesting script that sets up full trust via caspol between a client in one zone, and an application on the server. That script has been running every day, for every logon, since it was implemented. Can someone tell me the consequences? I guess there is about 500 trusts between the client computer and the server, all which points to the same thing.

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• How to Create a shortcut to files / folders on a drive with different / changing letters (root)?

  - by Rolo

  I have seen this question asked and answered many times but the location one usually desires to create the shortcut is on the actual drive with the different letters. I would like to create the shortcut on the drive with the permanent letter. So, let me explain further. I have a C Drive and a G Drive. The C Drive is always C and it's on a Windows XP computer. The G drive may be G today, but H tomorrow. How can I create a permanently working shortcut on the C Drive that points to the G, sometimes H, external hard drive? P.S. I am referring to an external hard drive, but I would also (not instead) be interested in the answer if it were a usb flash drive. (Keep in mind the shortcut is being created on the drive with the permanent letter). Thanks.

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• Change google search location beyond current country

  - by Abel

  I often work remotely and prefer using en-us locale settings for my searches. One of our computers is located in Germany, and whenever I try to change the location in Google Search Settings, I get an answer to "Pleas enter a valid Deutschland city or zip code". I checked this post, but it doesn't apply, as my language settings en-us and the Google search language is also set to English. It clearly uses the IP address of the computer. I couldn't find an answer in the Google help pages, anyone any idea how to change it London, New-York or Amsterdam?

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• How to create shared home directories across multiple computers?

  - by Joe D

  I know there are ways to share a folder across computers making it easy to move files. But I was wondering how one would setup a single login which lets you access the same files regardless of which machine you login on? What I would like is something similar to something you would see in a college campus where students login on machines in the lab and see their files regardless of which machine they use. I know there are server involved here. I have a need to create this on a smaller scale where we have a few computers available (and one of these could act as the server if needed and host the files) that every one shares. Note, the specific install of software might be different on each computer but the login and OS are the same. Since some computers have additional capability that our group members will need to use at rotating schedules (software licenses or hardware components, etc.). I have not done this before, so I would appreciate detailed instructions if possible or a reference to a guide that describes this. Thanks in advance.

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• What is the best way to exploit multicores when making multithread games?

  - by Keeper

  Many people suggest to write a program, and then start optimizing it. But I think that when it's coming to multithreading with multicore, a little think ahead is required. I've read about using threads, and experienced it myself during some courses at the university (still a student). The big question is simple, but a bit abstract: What thread related steps in game design do I need to take, before implementation? Now trying to be more specific. Let's say, as an example, that I'm making a small board game (like Monopoly) that I want to be multithreaded. My goal Is that this multithreaded game will exploit the best of the multicore system, lets say 4-6 cores (like in i7 processors). My answer to this question at the moment is, one thread for each of these four basic components: GUI User Input / Output AI (computer rival) Other game related calculations (like shortest path from A to B, or level up status change) I'm not an expert (yet!), and I'm sure there are better answers out there. Any suggestion, answer, different approach will be helpful. Some thoughts: Maybe splitting the main database is a good way.. (or total disaster.. )

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• How OS comunicates with HW?

  - by Jack

  Hi, how can program runnig on CPU (mostly OS) acess other PC hardware? Such as Graphic card, HDD and so? From what I read, In DOS, this was done using BIOS calls, specifically INT instruction. But, int instruction should only jump to the certain space in RAM. So, how can some program stored in RAM acess other computer HW, when CPU can acess only RAM, and reeive interrupts? And, does windows use int instructions as well, or is there any new way to communicate with HW? Thanks.

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