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• Does Chrome use a different DNS server while Firefox and IE use a different one?

  - by Jian Lin

  Is the common set up for Chrome that it will use a different DNS server, while Firefox and IE will use a different one? My Chrome (including the one on the virtual PC) will sometimes "Resolving host" and wait there for 20, 30 seconds, while Firefox and IE won't. (so after 20, 30 seconds with a blank page, the page will finally not be able to load). So is there something that Chrome is doing that make the difference?

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• How to boot more than 1 linux distro along with windows?

  - by BD at Rivenhill

  I have a machine that currently has Windows Vista living peacefully with Ubuntu 10.04 but I would like to test out another distro outside of a virtual machine without destroying my current Ubuntu or Windows installs. Is this possible? If so, any recommendations on how to arrange the partitions? I was thinking of moving user home areas to a separate partition and having 1 partition for all Ubuntu files and 1 for all files associated with the other distro.

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• Multicore system. How are the cores "sorted"

  - by asdrubael

  If I have a system with let's say two Quadcore CPUs and HyperThreading enabled, how do I know how the phsyical and virtual cores are sorted? For example if I force a process to run on "CPU 0" how to know which Core this really is? I remember a complex drawing about this, but didn't find anything useful.

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• Networking is broken in my VMware 10.0 VMs after upgrading to Windows 8.1

  - by Michael Geary

  I have a VMware Workstation 10.0 installation with several virtual networks including the default host-only and NAT networks. After upgrading to Windows 8.1, the NAT network was not working. I booted an Ubuntu VM with the default network setup that was previously working, and it sat for a long time during startup saying it was waiting for the network. After it finally started up, an ifconfig showed no IP address for eth0. How can I fix the broken network?

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• Postfix server to receive emails for anyonymous user

  - by sachitad

  I have a postfix server configured with imap. Only the recipient with the user account in the system is accepted. For example: rcpt to: test@localhost will yield the following error: 550 5.1.1 <test@localhost>: Recipient address rejected: User unknown in local recipient table What I want to achieve is setup virtual maps which accepts email to all the users (even if the user doesn't accept in the system) then forward all those emails to a specific user mailbox. Is something like this, possible?

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• Getting higher resolution than Monitor supports

  - by user35112

  I have DG43NB mobo, that have onboard X4500 graphics. Its supports 1900 x 1200 Resolution. But my LCD monitor is only capable of resolution 1024 x 768. I have to test some websites in resolution 1900 x 1200, how can i test? Is there any concept of virtual desktop using which i can simulate resolution 1900 x 1200. I have windows xp installed. thanks

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• can't use periods in ServerName/ServerAlias [Lion Apache installation]

  - by punchfacechamp

  I can access my host like this… http://keggyshop but can't use periods… http://keggyshop.edu here's my virtual host directive… <VirtualHost *:80> ServerName keggyshop ServerAlias keggyshop.edu DocumentRoot "~/sites/2012/keggy/web/pages/keggy/120528/sandbox/public" <Directory "~/sites/2012/keggy/web/pages/keggy/120528/sandbox/public"> Options Includes FollowSymLinks AllowOverride All Order allow,deny Allow from all </Directory> </VirtualHost>

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• Windows Server not installing audio drivers properly

  - by Adrian

  I am trying to install a dummy sound card on a Windows Server machine (in Amazon EC2 cloud) in order for one of my application to work. I'm trying to accomplish that with Virtual Audio Cable and REAUDIO3. Both tools managed to install a new device on my Windows XP machine, but on Windows Server, no new devices appear. Windows Audio and Plug and Play services are Started and Automatic. ANY ideas are greatly appreciated.

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• CNAME - how will the url be in the http request

  - by Traveller

  A newbie question regarding dns records Let's say I've configured, abc.example.com - A 10.x.x.x and a CNAME for xyz.example.com CNAME for xyz.example.com - abc.example.com when a user does an http request for xyz.example.com what happens when the request reach the 10.x.x.x server. Will the URL be abc.example.com or xyz.example.com? (trying to find out if virtual host in apache need to be updated) Thanks much

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• Multiple Screens, Multiple OS

  - by Cenoc

  Hey, Around two days ago I saw someone working on a computer and alt-tabing to different OSs. Basically he had 3 "screens", one with Fedora, one with Windows XP, one with Mac OSX. How is that possible? I dont think it was a virtual machine.... sounds friggin awesome though.

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• Using SAN Fiber Channel network for TCP/IP, possible?

  - by barbarossa12d

  Hi, I would like to know if it is possible to use the FC-switch (that is used for a SAN) also for TCP/IP traffic. We have servers (virtual machines) that must have a fast network for copying much data. It would be better to use the existing FC network than a slower 1 Gb network. Is this possible?

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• How can I mount an external hard drive in a VirtualBox machine

  - by hap497

  Hi, I have installed Virtual Box on Machine and setup a Ubuntu 9.10 machine. And I have an external hard drive formatted for linux. But when I hook up the external hard drive, my ubuntu 9.10 can't see the external hard drive. Can you please tell me how to setup the external hard drive for my ubuntu 9.10 environment? Thank you.

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• Multiple Screens, Multiple OS

  - by Cenoc

  Hey, Around two days ago I saw someone working on a computer and alt-tabing to different OSs. Basically he had 3 "screens", one with Fedora, one with Windows XP, one with Mac OSX. How is that possible? I dont think it was a virtual machine.... sounds friggin awesome though.

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• One specific VirtualHost in MAMP getting all the requests

  - by julien_c

  I'm pulling my hair out over a seemingly trivial issue... I'm using MAMP 2.0 and want to configure a Virtual Host for local development. Here's my httpd-vhosts.conf: NameVirtualHost *:80 <VirtualHost *:80> DocumentRoot /Applications/MAMP/htdocs/mysite/public ServerName mysite.local </VirtualHost> As soon as I add the VirtualHost directive, every request to http://localhost gets redirected to the DocumentRoot specified by mysite.local. Why?

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• VMWare additional drives...

  - by Tony

  I have a system that I imaged using VMWare Converter, and it runs perfect. However, I have a second drive on the system that I did not originally image. How can I image the second drive and add it to the virtual machine?

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• Unable to share a folder between Windows 7 and Ubuntu (running in VMWare)

  - by darthvader

  I have installed vmware toolbox in ubuntu (guest OS). I tried to share a location from the settings of the virtual machine. But when I click Ok, the following error in thrown in the host (Win 7) OS. "Unable to update run-time folder sharing status: Unknown error." The location is not showing up in /mnt/ What could be the reason? P.S I have vmhgfs process running in my Ubuntu VM. I was following this method.

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• Can i get multiple VMs on the same monitor without changing the resolution of the VM displays?

  - by Foghail

  Was wondering if anyone knew how to get 3-4 virtual machines to share the same monitor (i.e. so that I could potentially get all 4 displays on one screen, each screen environment would need to maintain its 1280x1024 internal resolution (so scale I guess?) anyways if you could help it would be greatly appreciated. I'm new to VMWare so please be gentle :-P

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• How to increase acpiphp slots?

  - by Eil

  Oh RHEL 5.5, there are 31 ACPI PCI hotplug slots by default: acpiphp: Slot [1] registered ... acpiphp: Slot [31] registered Is there a way to increase this number? I haven't been able to find an argument to supply to modprobe, or a sysctl knob to tweak, but I know there must be ways to get more slots based on some Google sleuthing. (For the curious, this is just preliminary experimentation to see how many virtual disks I can hot-add to a running KVM guest.)

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• What's a good CPU/Motherboard that still supports DDR2 memory?

  - by Pete

  I have 16GB of DDR2 memory I'd like to use when I upgrade my motherboard/CPU. What's a good motherboard that still supports DDR2? I'm thinking of perhaps an AMD Phenom II processor. The machine will be used for compiling software and running virtual machines.

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• How can virtualization be efficient?

  - by pestaa

  As I understand, the virtual machine and the guest OS doubles the amount of abstraction layers (that are computationally relevant) between the user interface and the pure power of the hardware. Some of the said abstraction layers are (emulated) hardware, drivers, IO interfaces, etc. Top-notch virtualization solutions like Xen probably eliminate a few of these complexities, but I still wonder how efficiency is achieved in these environments; and whether manageable cloud servers are really worth the performance price.

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• Error:Unable to acsess jarfile

  - by user2539617

  Whenever I turn on my HP Pavilion slimline (type of computer) it says Error:Unable to acsess jarfile C:/Users/Private/Appdata/RoamingServer258261055 The tab name is Java Virtual Machine Launcher Somehow. This effects me connecting to java programs that require online on a downloaded platform such as .exe or .bin. So if you try to login on Minecraft it won't connect. Raidcall,Skype,Sony Vegas. I really need help!

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• Cross-reference of computers having virtualization technology [closed]

  - by msorens

  When considering obtaining a new computer one of my prerequisites is the ability to load Windows 8 in a virtual machine (using VirtualBox). A prerequisite for that is that the host computer have virtualization technology. I located an Intel cross reference of chips having virtualization technology but I am trying to find a "higher level" cross reference between computer models and virtualization technology availability, skipping the extra step of having to first look up what CPU chip is in a machine, then cross-referencing that on Intel's list.

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• Disable File Copy between VMs

  - by shawnnny

  When I access multiple virtual desktops via VMware View 4, I'm able to copy files between VMs. The VMs are located in different isolated networks. This is a security concern in my organization and how can I disable this feature? I'm not able to find any related configuration in View Connection Server. Thanks!

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• Does additional license required to install Snow Leopard into Parallels VM?

  - by user27779

  I have an iMac and an Snow Leopard license. I'm planning using Parallels to make additional virtual Mac. (for test and debugging purpose) Do I have to buy additional Snow Leopard license for the VMs?

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• Directory backed up with rsync is much bigger than source

  - by nickd

  We backup a set of virtual machines to an external USB drive using rsync -a. The source directory is 145G as reported by du -sh, but the target is reporting 181G. The two file systems are ext3 and the block size is the same, so can someone explain what the discrepancy is?

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