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• Is GPU active when there are not any monitors?

  - by Mixer

  Does GPU render anything when there is no monitor plugged in? Today I turned my old PC into some kind of a "server" which means that I want it running 24/7. I don't need any display (I will operate through ssh) so when everything was set up I removed my monitor. After a hour I checked my graphic card's cooling system and it was still hot. My graphic card is GeForce 8600 (with DVI connector), OS is Debian Linux. What is the best solution in this situation (standalone server) if GPU is active and I don't want it to waste power?

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• tomcat processParameters complains about "invalid chunk ignored"

  - by cgicgi

  I am hosting a software system running under tomcat for quite a number of customers. Some of these send invalid URLs as request. These URLs may contain "&=" or "&&", which is not within the http specs. Now my tomcat complains about the following: "08.09.2010 12:36:04 org.apache.tomcat.util.http.Parameters processParameters WARNING: Parameters: Invalid chunk '' ignored." It is no problem, as is doesn't affect the operation in any way. Only problem ist that the tomcat/logs/catalina.out is growing with every single request. In the net you can find suggestions like: - Fix your URLs (which I can't, as it is the customers who send them) - Raise tomcats log level to ERROR (which I don't want to do, as it would suppress INFO like "INFO: Reloading context [/ContextName]" and other stuff you want to know. - Redirect the log to the application log (which won't solve the problem, as the message will flood just another log) Does anyone know how to solve the problem at its ROOT, which means: Tell tomcat not to complain about invalid request parameters any longer

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• Sync 2 hard drives without being connected at the same time (Mac)

  - by Jef

  Hi, I've got a 2TB hard drive at home and one at work. I use my laptop to connect to them. I want these 2 hard drives to be exactly the same. But these hard drives will never be connected at the same time. Is this possible? It means that my laptop needs to track the changes AND copy all new files to its hard drive temporarily. My laptop should act as an intermediate between the 2 external hard drives. There are lots of syncing options if both drives are connected at the same time, but there seems to be no solution for my specific problem. Any ideas? FYI: I use a Mac.

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• How can I get command prompt to merge my files in name order?

  - by Anastasia

  I'm using the copy command in command prompt to merge all the files in a directory, for a number of directories. The problem is, I need to edit the first file in each directory before I merge. This means that when I put in the command "copy /b *.mp3 name.mp3", the joined file has part 2 at the start and part 1 at the end, presumably because it was created last. Is there a way of using the copy command so that the files merge in name order? Each folder has a different number of parts, anywhere from 2 to 1000 so I don't want to list each file with a "+" in between. Ideally, I'd like to find something to insert into the copy command I'm already using. Otherwise, is there a way of rearranging the files in a folder so that if you enter "DIR", part 1 shows up first even if it was edited last? I'm using Windows 7 by the way.

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• Netgear routers don't allow you to disable wireless admin??

  - by MousePad

  I just bought a new router, the NetGear WGR614. Nowhere in the settings can you disable the ability to administrate the router from a wireless connection, which opens it up to brute force attacks from outside the building. Furthermore, it doesn't require a direct connection to the router to admin either, you can admin it while you're connected to the Internet. This means it opens itself to the possibility of an attack from within the network. This is unbelievable to me. What am I missing? Can this be possible?

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• Remotely enter encryption key?

  - by Jason Swett

  This might be a really dumb question but here goes, anyway. I just bought a couple servers. I already installed Ubuntu with encrypted LVM on one and I'm planning on doing the same with the other. This means that every time I boot up each of these machines, I have to enter the passphrase. And I'll have to do this every morning because I'll power each machine off each night for security reasons. Here's the problem: I don't have monitors or keyboards for these servers. It seems to me I have two options: Somehow enter the passphrase remotely Buy a KVM switch I doubt #1 is an option but I want to make sure it's not before I buy a KVM. Is it possible to enter the passphrase remotely? AND is it a good idea?

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• Need to scale quickly. Which cloud service should I use?

  - by mk1000

  Traffic to my facebook app is growing at an insane rate and I need some suggestions on how to scale. I'm probably not going to even be able to keep it running by the day's end, as it's hosted from my already overloaded dedicated server. I need to either move it to its own box or a cloud service like e2c. Something like e2c seems like the way to go, but my server admin skills are terrible. Is there a good front end management UI for e2c or another hosting service that is comparable in cost that is fully managed? I don't mind going with something a bit more expensive now if that means I can get everything switched over and running within 24 hours.

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• Windows HOSTS File

  - by jdp

  I have a network of computers and a server. I often need to edit the hosts file of all the computers to add a new entry or to change one. e.g. 192.168.1.101 temporary-internal-site How can I get all the machines (all windows) to 'import' or use a hosts file on a server in addition to the normal one. This means that I can just edit this one file with the new entry and all the machines will check it. Feel free to ask questions if you don't understand.

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• SMB/CIFS connection, attempting to change the permissionswithin rhel5 to comply with the clients needs

  - by Skreemer

  I can get the mount to work and as written in /etc/fstab: //pcsprdvhost.prod.tsh.mis.mckesson.com/sftphome /sftphome2 cifs username=myuser,workgroup=domain,password=mypassword,noserverinfo,uid=tmadmin,gid=tibco,nounix,file_mode=0777,dir_mode=0777 0 2 this means that every directory under /sftphome2 looks like: drwxrwxrwx 1 tmadmin tibco 0 Jul 6 2010 D0000001 When I issue: chown -R D0000001:D0000001_admin D0000001 Nothing happens. When I pull the uid and gid specifications out I get the system owner/group of root:sys What I need to be able to do is change the sub-directories under /sftphome2 to whatever owner and group (and permissions) I desire versus the ones that are getting specified. How do I do this?

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• Prevent Virtualbox intercepting certain key combinations?

  - by Blazemore

  Is it possible to prevent my Windows 7 guest OS intercepting Ctrl+Up/Down, and allow my Ubuntu how to intercept them instead? I have a dual-monitor setup with two vertical virtual desktops on Ubuntu. I have a Windows 7 fullscreen guest on one monitor, set to always display on the current workspace. This means I have effectively two vertical workspaces on one monitor, and just Windows 7 on the other. The problem occurs with Windows 7 is focussed and I hit Ctrl+Up/Down to switch workspaces. I have to click out of the VM first, which breaks my workflow. Can this be fixed?

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• What kind of website traffic can a 10mpbs connection handle?

  - by Blankman

  I need some help understanding firewalls. I played around with Amazon EC2 and it seems to provide a firewall out-of-the-box. When I say firewall, to me that means the ability to block ports from being accessed from the outside world, or to only specific security groups. I'm looking at a dedicated server hosting provider and they provide a hardware firewall for $50/month and it is limited to 10mbps. Can someone explain to me what kind of traffic this correlates to? Are these usually limited to the number of simultaneous connections also?

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• Automatically make user local administrator on their computer through GPO?

  - by Grant

  In our AD 2003 domain each user gets local admin permissions on their computer. Everyone else can login with their domain account as normal user. Right now this means going to the desktop and manually adding the user as a local administrator. Is there any way to automate this process through logon scripts or GPOs? I have found ways to use a gpo to make everyone who logs in to a computer a local admin, but really only want to give it to the primary user (or in some cases users) of the computer. I've also seen methods that required adding a group for each computer...but really dont want to clutter AD like that. I do have a list mapping each user to each computer name. If it matters the desktops are a mix of xp and win7.

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• Intel Network Connection: This device cannot start. (Code 10)

  - by harryuser

  I have a Intel® Desktop Board DP55KG (see http://www.intel.com/products/desktop/motherboards/DP55KG/DP55KG-overview.htm), which has a Intel 82578DC Gigabit Network Connection on board. Additionally, I have a Intel PRO/1000 PT Dual Port Server Adapter in a PCI express slot and I am running Windows 7 Professional 32-bit. Also I am running with Intels latest network driver, in the 82578DC questions this means 11.6.92.0 with driver date 2010.04.12. The problem I am having is that the Intel 82578DC Gigabit Network Connection will not start on boot with the following message: "This device cannot start. (Code 10)". Disabling and then enabling the device after boot makes the network connection work again without any problems, but as soon as I reboot the problem occurs again. Any suggestion how to fix this? I have seen this problem on another Intel S3420GP board as well in Windows 7 that is.

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• Asus V1S screen dimming randomly

  - by Bill

  I have an Asus V1V, which is the same as the Asus V1S except for the video card. I have a problem where the screen will randomly lose brightness or flicker between being lit and not lit. The picture below is of the left hinge, with the cover removed. Pressing one of these cables affects this behaviour, and pressing it in place will resolve the issue for a few hours. My guess means the inverter cable is damaged, based on previous experience. As the picture shows, there are two cables, an LCD cable and what I assume is an inverter cable. I purchased an LCD cable for my model of laptop, but have been unable to find an inverter cable. It seems not to exist. I would like some input on if an inverter cable actually exists, if it is likely the problem, or solutions in general to resolve this problem permanently.

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• Code-First Database Creation During TFS 2010 CI Build

  - by jedimindtrickster

  I would like to automate code-first database generation during the automated CI build of a web project in Team Foundation Server 2010. When run locally the tests create a code-first database specified by the connection string in the app.config of the tests project. How do I configure the TFS Build Configuration to mimic this behaviour on the TFS build server? Edit The problem, it turns out, was that the TFS build server was successfully running the test which was using the default connection string in the app.config which pointed to the local SQL Server, not where I expected it. The solution was to use SlowCheetah on the TFS server as a means to transform the App.config file using the QA transform as per this blog article.

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• Twisted pair cable twists and unwanted signals issue

  - by ziaharipur

  I am confused about one point I have read the following paragraph from the networking book. “the twists in the twisted pair cable are used to avoid the unwanted signals. For example one twist, one wire is closer to the noise source and the other is farther; in the next twist the reverse is true. Twisting makes its probable that both wires are equally affected by the unwanted signal. This means that the receiver which calculate the difference between the two receives no unwanted signal.” Now ok I understood the purpose of twists but I am confused about how receiver will calculate the difference when it will receive the signal?. How unwanted signal will be eliminated ? Another thing that I want to make clear is , I am beginner please provide such an answer that can be understood.

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• Apache resolves all URLs to default

  - by Ariel

  I am using Apache 2.2 on a Debian-based distro. For some reason, all URLs are directed to the default index. No error or anything. That means: example.domain.com goes to domain.com. "example" can be just anything. In the default Vhost file (/etc/apache2/sites-available/default) I've added: ServerName: www.domain.com But it still keeps that odd behaviour. Please let me know how to enable the common, default behaviour. I haven't changed anything by the way, this is since installation. Update: Following SvW's answer, I am looking for a way to force Apache not to accept any URL, only those specified as VirtualHosts.

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• How do you redirect pages from a subdirectory up one level to the root directory

  - by kezzman11

  I have recently moved all the content on my website from being in the www.mysite.com/shop directory to being in the root directory. This means that now I need to redirect any request to visit a page with the /shop directory back to the same page in the root directory eg. www.mysite.com/shop/categories/washroom to www.mysite.com/categories/washroom This needs to happen with all pages in my site that were previously using the /shop directory. The closest thing to a solution that I have found so far is the following code RedirectMatch ^/shop/.* http://www.mysite.com/ however this redirects all pages back to the homepage instead of to the relevant matching page without the /shop. Can someone please point me in the right direction, or if this has already been answered in here can you please post the link to the answer.

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• Logging in over ssh in a different session?

  - by Jordan Reiter

  I don't know exactly what the correct term is, but I notice if I log in to a remote SSH server, then close the window, open a new one, and log into that server again, my bash history and user processes appear to be different. For instance, if I started a background process I can't get back into it, or something I typed won't show up in my bash history. The problem is for some reason occasionally something happens to my remote session and instead of being disconnected the session just hangs; I have to close the window and open a new one to reconnect. As a result sometimes it means a long running process basically is "lost" since I can't get back into it. Is there any way to set it up so that when I log back in I log back in to the same "session"? This is using OS X Terminal.

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• How long does it take in practice to warm up large in-memory databases?

  - by Sim

  Companies such as Peak Hosting are offering 64 core machines with 512Gb RAM for $2K/month. This is a very interesting choice for in-memory databases such as Memcached/Redis as well as databases whose performance degrades rapidly when the data & indexes don't fit in RAM, such as MongoDB. My main concern with monster machines such as these is the time it takes to warm up an in-memory database. In my experience, theoretical metrics, e.g., that SATA can load 100Mb/sec, fall short of what happens in practice. Even at that rate, 100Mb/sec means that loading up 512Gb RAM machine from SATA disks can take over 1 1/2 hours (!). I am looking for real-world reports of warm-up times for machines with very large memory. Please, share details of the software on the machine, data size, storage configuration, e.g., SATA or SSD, network, hosting/cloud provider, if relevant, etc.

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• Windows shows incorrect free space on Raid 10 volume

  - by Adenverd

  I have 4 1TB hard drives in RAID 1+0 configuration. Theoretically, I should have ~2TB of available space. Windows says the drive has a total size of 1.81 TB, which I'm fine with. As far as files on the volume go, I used WinDirStat to determine that I have 552.8GB of files on the volume. This means that I should have somewhere around 1.3TB minimum of free space. Yet Windows shows the drive as only having 492GB of free space. Are there hidden files somewhere that I can't see (I have show hidden files/folders turned on)? Does Windows not recognize that old files have been deleted? Is there any way to correct this problem?

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• Monitor does not turn on until reset

  - by eggonlegs

  I have a system with an ATI 4870 hooked up to a Samsung P2350 using DVI. My motherboard is a GA-EP45 DS4P with the latest BIOS. The situation is: I turn on my PC (with the power switch) I get a blank screen I hit reset and the PC boots up normally, i.e. the monitor turns on and This has been the case for a couple of months (Was away for a while, came back and it was the same case). I was hoping the situation would somehow fix itself but alas, nothing. I have tried numerous settings in the BIOS (Combinations of different settings of the ACPI and power saving options) and have tried different cables. Has anyone experienced this before? I don't know where to go from here. It is pretty infuriating because it means I can't put my computer to sleep, as the monitor won't come on. Any help is appreciated. Thanks

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• SSH + SAMBA + LDAP question

  - by Mejmo

  Hi, I have SSH + LDAP working (I can log to Server2 with credentials from LDAP server Server1). Now, I would like to add Samba server (Server3) and it would be nice if it authenticates the users like Server2. How can I achieve this ? As I see Samba schema and the schema used for storing Unix users are different. So if I change password in Samba schema, I would be able to log in with the old password. I need centralized storage of username/passwords. If I change it once in phpldapadmin, it means for samba and ssh. Thanks.

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• Recommended Free DNS hosting for my webserve on a dynamic IP? [closed]

  - by JSchwartz

  I have finished a webserver project (for school) and the professor wants to be able to "test it" from home whenever he is free - this means I need to provide his with the URL to my webserver (which is fine). The only issue is that my IP-Address is dynamic (changes almost everyday) and I would rather not have to email him everytime - nor do I want him to try when it isn't working ... So I was looking into alternative solutions like DNS hosting (I hope that is the right terminology), so I could provide something static for him to connect to ... problem is I have never done this before... Are there any recommeneded free ones? Does Google or someone provide something good? I found http://www.no-ip.com/ which seems like it does what I want... Any feedback would be appreciated. Thanks,

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• What does the red x icon mean next to a user in folder permissions (Windows 7)

  - by Scott Szretter

  In trying to debug various strange issues on a machine, I found something strange - when I go to C:\Users\administrator and get properties, security tab, it lists the users (the local admin account, system, and 'administrator' which is the domain administrator account). It all looks fine in terms of permissions (full control, etc.) compared to other machines. The one difference is there is a small red circle with an X to the left of the user icon/name. Additionally, there are various folders where it says access denied under there - for example, my documents! Even logged in as the local machine administrator account (which is not named administrator), I am unable to change the permissions - it says access denied. Any ideas what this means and how to fix it? I even tried re-joining the machine to the domain.

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