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• Prevent machine in a LAN from receiving a remote shutdown

  - by WebDevHobo

  I'm probably just overreacting, but I recently came across a LAN-scanner that showed me the option "remote shutdown", for all found computers on the scanned network. Now, how exactly does this work? If I send such a message, will the shutdown happen no matter what, or is it required to have the password/user-name of the user of that other computer. Mostly I'm wondering: can this be done to me and how do I prevent it? EDIT: what's more, I had the scanner check for shares. The result being this: Double clicking the links opens them in explorer, basically meaning my entire C and F drive(only 2 HD's I have) are completely exposed to anyone in my LAN. Or can I open these because it's my own machine?

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• Is the 4-pin PSU connector required? (Trying to connect a PSU to a mini case.)

  - by Geeks On Hugs

  I am trying to build a computer, placing an ASUS P8H67-I DELUXE in a custom retro C64 case. The case is an extra small form factor which can accomodate the Mini ITX board, but requires an external power supply, similar to the power-bricks that laptops use. I am looking at different power supplies and like these, but cannot figure out whether/how to power this system because they provide a 24-pin connector, but the motherboard has a 4-pin connector as well. Is the 4-pin connector optional or is it required? If it is required, how can I provide power for this system?

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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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• Why is Firefox so slow and heavy?

  - by Tony

  For some reason, when I go to links the pages seem slow and heavy. It also has a lot of lag spikes between page loads. Basically it seems to freeze then load it all at once fast. I'm currently using Firefox 25. But when I use the same Chrome version, it seems to be very fast and smooth page loading. The CPU it takes on average is about 400,000k. Extensions: iMacros Leethax Ad Block Plus 2.4 Ad Block Plus Pop-up Addon 0.9.1 Computer stats: 6 GB RAM Windows 7 Acer Aspire Laptop 500 GB HDD Intel Core i4-2370M How do I make Firefox load like Google Chrome, without much freezing?

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• rdiff-backup failed due to target machine being down, but is unkillable

  - by Markus

  My backup script was invoked by cron, using rdiff-backup to backup the user files onto a target system in the network. That target computer went down at some point, yet still appeared as mounted on the server. rdiff-backup didn't do anything, but still appears as a process. kill-ing doesn't stop it. Similarly, running rdiff-backup for other directories works but doesn't exit properly and remains in the process list. Is there anything short of rebooting the server that I can try?

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• Broadcomm WIDCOMM A2DP Quality Adjustment

  - by snicker

  So I got a sweet pair of bluetooth A2DP headphones for a sweet, sweet price (Motorola A805, if you were wondering). They sound great paired with an iPhone. However, when I pair with a computer using the latest and greatest WIDCOMM drivers, the quality is quite poor, almost un-listenable... clicking, popping, scratching. The remedy on one machine was using BlueSoleil, another bluetooth stack, as there is an adjustment for the Bitpool settings that allow you to jack the quality up. Sounds great. However, the bluetooth chipset in my other machine is not supported by BlueSoleil... so I'm stuck with the WIDCOMM stack. So the question is... Is there an undocumented way to turn up the quality for A2DP in the WIDCOMM drivers? first question on SU, usually lurking on SO.. =]

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• Huge area of stuck pixels

  - by pixelady

  A toddler slammed down my laptop screen while an iPod was laying on top of the keyboard. The damage resulted in a massive area of stuck pixels on the laptop screen, approximately 2 inches by 10 inches in area. I've tried running various programs that rapidly flick the pixels in different colors, as well as massaging the screen with heat and also without heat. These are the standard methods I read about for fixing a stuck pixel. But none of the online articles I read said how to fix a huge area of pixels, not just single pixels. What else can I try to get the many pixels unstuck? My computer is no longer under warranty and I don't want to buy a new one.

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• Set up a GUI managed firewall for other machines?

  - by Azendale

  What ways are there of setting up a firewall for traffic routed for other machines whose rules can be managed by a GUI? Can GUFW do it? FireStarter? (or should that be avoided because it is supposedly no longer updated?) *By filtering, I'm mean the traffic I am setting rules up for is not destined for this computer. It is either from or to other computers on my LAN. Say, for (a simplified, hypothetical) example: I have an ethernet connection at my dorm that I have plugged into eth0. It gets an address of 192.168.1.185 and I also have 192.168.185.0/24 routed to me, so I don't have to do any NAT. I have a hub attached to my second ethernet port (eth1) with a few Windows computers and I give addresses out of my 192.168.185.0/24 block with DHCP. How can I use my Ubuntu box to block incoming connections from eth0 that are being routed to my Windows computers and let through just a few specific ports (so fellow students can't see what files my Windows boxes are sharing via SMB)?

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• Unable to FTP, any ideas?

  - by Nick

  I'm using Windows Server 2003. I have the FTP services installed, router set to DMZ, and currently Anonymous logins allowed. (I know, security risk, but there's nothing important on there and not worried at the moment) So here's the thing... I can ftp to my computer, list directory, get files etc, BUT only if I'm using the command prompt. If I try to log in using IE or any FTP client it's just timing out. I've tried: username@ipaddress ipaddress username:password@ipaddress and not able to get any of them to work. Anyone have any ideas? Thanks!!!

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• Configure IIS 6 to deny access to specific file based upon IP address

  - by victorferreira

  Hello guys, We are using IIS 6 as our webserver. And we need to deny the access for one specif file, placed in only one specific URL, to everybody OUTSIDE the local network. In other words, if somebody is trying to access that filme/page from their own computer at home, using the internet, they must not succeed. But, if the same person try to do that at the same network of the web server, its ok. I am not sure about that, but Apache uses ORDER DENY,ALLOW. You specify the URL, allow or deny to all or to a range of IP. Any suggestions? Thanks!

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• process running on login: can't find in AD or login batch scripts

  - by tombull89

  Hallo, I'm trying to deploy some classroom control software (NetSupport School) to some of the machines on our network but for some reason when you log off and restart the computer any user who logs on ends up re-installing the software while logging on. I spent two hours on the phone to the complanys support and we eventually nailed it down to most likely a setting in Active Directory or in the login.bat (drive mapping and settings) but we can't find anything in those that would say "run this installer at logon". Is there anywhere else on the system that would set something like this? Server 2003/XP. Ta!

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• Unable to extend desktop

  - by CSharperWithJava

  I'm trying to hook up my TV to my computer as a gaming/multimedia center but I'm having troubles setting it up. I have a custom built machine running Windows 7 RC. It has an ATI Radeon 4800 video card with 2 dvi output and 1 S-video output. I have an s-video to composite adapter that connects to my tv. (It's an old TV with only Cable, composite, and s-video connections). I can switch the desktop to my TV without a problem, but I can't duplicate or extend my desktop onto it. I've installed the latest drivers and Catalyst Control Center, but it won't let it work any more readily than Windows would. Any suggestions? Would using an s-video cable instead of the adapter change anything? (The only reason I use the adapter is because it came with the graphics card) (Edit) I installed the latest drivers and I can now duplicate the screen (show on one monitor and on the TV), but I still can't extend the desktop.

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• Distortion in format of data in wordpad file when shifted from windows XP to winows 2007

  - by Harpreet

  I have many data files which were set to open in wordpad file in windows XP. Those files have a particular format for data, like following: Name of Data file No. of data columns Name of data in column_1 Name of data in column_2 . . . Name of data in column_n column_1 column_2 column_3 ... column_n Now my computer has been formatted and OS is changed to windows 2007, however when I open my data files in wordpad the above format of data is no more present. The format in wordpad in windows 2007 seems to be distorted. Does anyone knows what to do to restore the format as shown above, which is what the data used to look like in XP? I have attached the snap shot of the new distorted format of data as seen in wordpad in windows 2007. The snap shot shows 100 column names, however the data columns present are only 5 when it should be actually 100 data columns.

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• Vista - perform scheduled actions only if screen is not locked

  - by Syntax Error

  Ok, here's the general idea of what I want to do. After a certain time, I would like the computer to nag me to go to sleep. Maybe every five minutes or so. But I don't want the messages to pop up if the screen is locked, because I leave it like that all night. Ideally I would like to be able to do more things like shut down running instances the web browser, or lock my user session if I ignore the notices for too long. But I'm happy with just popup messages if that's all I can do. So, how much of this is possible and where do I start? I'm not too well versed with task scheduler, and I'm assuming I'll use that to at least start whatever script I have to put together.

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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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• Copying files from Public folder to C: takes a minute, even though they are same hard drive and same

  - by Jian Lin

  I have a big file, like 2GB, and would like to copy it from Network -> Bookroom -> Users -> Public (this is the computer in the bookroom in the house) to c:\myfiles and they are actually on the SAME hard drive (and same partition). But copying still takes a minute or so? I thought if on the same hard drive and partition, then it is a "move" and it should take 2, 3 seconds only. that public folder also is \\Bookroom\Users\Public

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• Enable file download via redirect in IE7

  - by Christian W

  Our application enables our customers to download files to their computer. The way I have implemented it is using asp.net with a dropdown. When the user clicks the dropdown they get the choice of "PDF","Powerpoint", and a couple of other choices depending on circumstances. Then, in postback depending on the choice the user made, it will return a file (changing the content-header and such and then bitbanging a file to the user). This works perfectly in all browsers, but IE7 complains that this is a security risk and blocks the download. Is there any way for the users to authorize downloads from our webapplication?

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• Best memory-efficient web browser for Ubuntu?

  - by Steve K

  I've installed Ubuntu 10.10 on an old laptop with only 756 MB of RAM, Pentium M 1.6 processor. I'm using Google Chrome 11.0 (dev channel) for web browsing, and it appears to be using up most of my memory and processor time. Does anyone know of a better browser than Chrome on Ubuntu, for an older computer like mine? I'm new to Ubuntu, so there may also be tweaks I can make to my existing system to have it perform better. But right now it's pretty slow when I've got ~5-10 tabs open. Related question: memory-efficient web-browser

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• backlight doesn't work on acer 5732z tried everything I can find

  - by Dude Random21

  Ok if you can solve my problem you're really really good. I want to run ubuntu 12.04 on my acer aspire 5732z I know (from research) that these computer's have issues with the backlight on ubuntu. So I tried a couple of solutions: The "sudo lightdm restart" method. I get no change at all. The "sudo setpci -s 00:02.0 F4.B=30" method. This so far has been the most effective, I first tried it in the F1 console right away I get the screen back, problem is going back to the desktop it goes back to being black. So I tried it from a terminal window and it works as well but as soon as I unplug my external monitor the screen turns black again and doesn't come back. If I plug the monitor back in the screen stays black and the only thing I see is the mouse pointer. From here I go back into console (which I am able to see) and reboot from there. The "sudo sed -i 's/GRUB_CMDLINE_LINUX=""/GRUB_CMDLINE_LINUX="acpi_osi=Linux"/g' /etc/default/grub" method. This one I got no instant change and after reboot still no change. I'm open to pretty much any suggestions you may have.

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• Router loses connection to internet randomly

  - by tvanover

  I have a Belkin wireless G plus Mimo router and it randomly loses the connection to the internet. It seems to happen for a second or two, not enough to impact day to day browsing. But enough to disconnect games, or stall videos I am watching. It happens whether I am plugged into the router or connecting via wifi. I am unsure if it is my router or Comcast that is causing this issue. If I connect a computer directly to the modem the problem never occurs, so that tells me it is probably the router. But I also had a Netgear wireless router WGR614, and it had the same problem. I don't know where to start looking for the source of the problem. What logs should I be combing through? All my machines are win 7 of varying versions.

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• Configuring subdomains for a machine (Win2k8) in a lan

  - by RMS

  I am currently setting up a windows 2008 server to host a website with multiple subdomains, all accessible only within the lan. also, there is no active directory. what I did is : 1 - computer name : 'web' 2 - in IIS, I added a site binding as 'site1.web' to the default web site 3 - added DNS role to the server 4 - added 'web' as principal zone in direct lookup zones (default options) 5 - added CNAME 'site1' From a client machine, in tcpip config I added the ip address of 'web' to the DNS list in addition to the ISP DNS. (client machine ip is from DHCP) Now browsing to 'http://web' or 'http://site1.web' works correctly. My question is, is it possible throught additional steps in the server to have the websites accessible without requiring the DNS config in all the client machines ? thanks in advance

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• Serious problem with mobile modems in UBUNTU to look [on hold]

  - by kitten 94

  I use mobile broadband using data card(modem) with simcard on ubuntu 14.04. My friends,relatives,boss used to make phone call to my sim on modem, & they get the ringsound on their phone but I cannot find any alert on ubuntu about the phone call. They think that I will call back to them & gets disappointed. Some even gets angry "that I am not attending the mobile call intensionally". They even do not not believe me,saying that computer can also pick a mobile call keeping mobile partner in their mind . Is there any way just to find out call & who it is call ? so that I can call to them later. or Is their any software like mobile partner to ubuntu to recive & make phone calls? Modem Manager GUI is helpful only just to send SMS, even USSD not works in it, inorder to receive SMS I have to close & open the windows repeatedly. please,please help me. Any help or ideas is thankful. Waiting for your's reply.

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• Extremely simple online multiplayer game

  - by Postscripter

  I am considering creating a simple multiplayer game, which focuses on physics and can accommodate up to 30 players per session. Very simple graphics, but smart physics (pushing, weight and gravity, balance) is required. After some research I found a good java script (framework ??) called box2d.js I found the demo to be excellent. this is is kind of physics am looking for in my game. Now, what other frameworks will I need? Node.js?? Prototype.js?? (btw, I found the latest versoin of protoype.js to be released in 2010...?? is this still supported? Should I avoid using it?) What bout HTML 5 and Canvas? would I need them? websockets? Am a beginner in web programming + game programming world. but I will learn fast, am computer science graduate. (but no much web expeience but know essentionals javascript, html, css..). I just need a guiding path to build my game. Thanks

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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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• My windows keyboard is being "clever" with the quote keys - how can I stop it?

  - by Marcin

  I'm using windows 7 on a laptop. On the laptop keyboard, for some reason, the quote key (which has both double and single quote on it) is doing some "clever" annoying things: When I press single-quote (or double-quote), windows doesn't send any characters until I press it twice (resulting in '' or "") When I press it before a vowel, I get some kind of accented character. As I usually only write English, this is annoying. The backtick/tilde key is subject to similar behaviour. I have not attempted to set up my computer to process anything other than English. My keyboard appears to be (in so far as these things are standard on laptops) a standard US qwerty keyboard. How can I stop this happening?

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