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• How can I prevent my domain controller doing forward lookups for remote users?

  - by markmnl

  I have a Windows Server 2003 server in the office. I VPN into the LAN remotely. My VPN has a virtual NIC with the Windows Server as the primary DNS since it is a domain controller. When connected to the VPN and I do an nslookup or simply browse the web the DNS from the VPN provides the DNS answers. I believe this is because it has DNS forwarders, so queries it can't answer are forwarded and then it relays the answer. This is the desired behavior for workstations in the office (they should query their domain controller first); however for remote VPN users this is not desirable. I do not want my remote office's server to answer DNS queries it is not the authority of (which happens to be 192.168.x.x). Is there any way I can configure this?

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• Can't access VirtualBox host-only network from windows host

  - by Markus Orreilly

  I've got two vms running on a windows host, each with a host-only network and ips in the 192.168.56.XXX range. One of them is running apache and serving some content that I want to access from my windows host. However, the windows host can't access the apache server at all. The server is running on 192.168.56.103. ipconfig from windows says it's ip for the Virtual Box interface is 169.254.143.37. I tried route add to route 192.168.56.XX traffic, but everything I tried didn't work and I was probably using it wrong. Any ideas on how to make this work?

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• What's the best way of handling permissions for apache2's user www-data in /var/www ?

  - by gyaresu

  Has anyone got a nice solution for handling files in /var/www/ ? We're running Name Based Virtual Hosts and the apache2 user is 'www-data' We've got two regular users & root. So when messing with files in /var/www ,rather than having to... chown -R www-data:www-data ...all the time, what's a good way of handling this? Supplementary question. How hardcore do you then go on permissions? This one has always been a problem in collaborative development environments. Cheers.

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• Error adding 4tb LUN (Raw Device Mapping) to ESX4 VM

  - by Tom Gardiner

  Hi guys, I'm trying to map an existing 4tb LUN from a Fibre Channel SAN, through to a VM in my ESX4 environment. It keeps telling me that the VMDK file size exceeds the the maximum size supported by the datastore. I've tried in Physical compatibility mode, and also both Virtual styles. I'm a little confused by this as we had the same LUN mapped through to another VM when we were running ESX3.5... I've also noticed that some of my other RAW mappings are generating extremely large VMDK files on the ESX servers. Does anyone know if this change in behaviour is intentional? And if so why? It doesn't seem to me that if the LUN is mapped directly to the VM that it's size should be relevant. We're running 4.0.0 build 236512, and 4.0.0 build 219382 and I've not had any success on either. Any insight or advice would be much appreciated! TG

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• Error installing Arch Linux

  - by Garethj94

  So, I am trying to install Arch Linux on my Acer Aspire 4830tg, but I keep running into problems. Some background knowledge, I am trying to install Arch off a usb stick and I got the iso image using bittorrent. I am also trying to install it alongside of Windows 8 (which is already installed). So when I boot into Arch linux I get this error: :: Mounting '/dev/disk/by-label/ARCH_201212' to 'run/archiso/bootmnt' Waiting 30 seconds for device /dev/disk/by-label/ARCH_201212 ... ERROR: '/dev/disk/by-label/ARCH_201212' device did not show up after 30 seconds... Falling back to interactive prompt You can try to fix the problem manually, log out when you are finished sh: can't access tty; job control turned off I know that it will work if I run it on a virtual machine but whenever I try to install it on my laptop I keep getting this error. And since you can't register for the Arch forums without a Arch terminal to run their captcha command I can't ask this on their forums.

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• Troubleshooting source of heavy resource-usage on a windows server 2008 running multiple sites

  - by batman_man

  Hi, I am running about 10 asp.net websites on a hosted virtual server. The server runs Server 2008 - each website is backed by its own database running on SQL server 2008 on the same box. Lately the box has seemed really slow. The only kind of discovery i could think of doing was looking in the task manager, where i can see w3wp and sqlserver.exe jumping to 40% cpu usage every 5-10 seconds. What are the steps i can take to determine which of my websites is taking these resources and or what database is getting hit the most? I have of course ssms installed on the machine as well. As you can tell, my sysadmin skills are very very limited - any help would be much appreciated.

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• Problems switching to QEMU control panel with -nographics

  - by tor

  It seems that the terminal does not recognise CTRL+ALT+2 when typed, so I don't know how to quit the QEMU emulation, or switch to the QEMU control panel. I am running Mac OSX Lion, and I type $ qemu-system-arm -M verdex -pflash flash.img -nographic -sd sdcard.img to start QEMU emulation of an ARM system in the Terminal. I learned from this site that typing CTRL+ALT+2 should work, but the only thing that happens to me, is that a "2" is printed on the command line of the virtual operating system. Any ideas on what could be wrong? Is this a Mac specific issue? (The same problem occurs in both terminal.app and iTerm2)

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• Apache VirtualHost running very slow on OS X 10.7 (Lion)

  - by jwerre

  I've set up a few virtual hosts in Lion and it's running very slowly. NameVirtualHost *:80 <VirtualHost *:80> ServerName localhost DocumentRoot "/Library/WebServer/Documents" </VirtualHost> <VirtualHost *:80> ServerName dev.local DocumentRoot "/Users/me/mysite" <Directory /Users/me/mysite> Order allow,deny Allow from all </Directory> </VirtualHost> then in /etc/hosts I added 127.0.0.1 dev.local Everything works fine but it's sooooo slow — 5 or so second to reload a simple "Hello World" html page. Here's is the strange part. If I make a symbolic link of the site in my ~/Sites folder (ln -s ~/mysite ~/Sites/mysite) and navigate to http://localhost/~me/mysite It's nice and fast the way it should be.

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• Connecting Small business network to Azure Site to Site VPN

  - by MarkKGreenway

  Would like to have connectivity between azure virtual machines and on LAN users. My current network has a Cisco ISA550 connected to the WAN (one Ethernet cable into the office the fiber transceiver is on a different floor)and any public servers can be one-to one NAT-ed to have a public and private IP. What is the best way to get a reliable connection. Between end users and the cloud? I want to know the preferred on site endpoint. Do the azure vm's have to have a local ip in the LAN subnet? (Right now 10.10.0.0/20 or 255.255.240.0 to give room if this is the case). If in purchased an asa550 would I put it behind or in front of the isa550. Would it be ahead or peer with the users switches? What is the best way to get a reliable connection. Between end users and the cloud servers?

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• VPN Network intermittantly fails to provide internet: What could be possible causes

  - by Jake M

  We have a small office with our own VPN setup. We occasionally experience failures in our internet connection where we cannot access the internet. Most of the time the internet connection will resume by itself(without me doing anything) after a period of time(10 mins). Would you be able to suggest possible causes of the connection failure so I can then go and run some tests? Our network architecture is like so: A 'Billion' brand router that is connected to the internet via phone cable and then connected to our Cisco Switch A Cisco Switch/Bus which is connected to all our office nodes, our external harddrive and also to our router as stated above. All connections are via ethernet cable A series of work computers(nodes) connected via ethernet cable to the Cisco switch. Our ISP is TPG Australia We have a Virtual Private Network All the ethernet cables are about 3 years old Do you think that the causes of our intermittant connection problems could be due to the following: Data collisions in the ethernet cables Old/Faulty ethernet cables Our ISP has bad service Can you think of any other causes of the problem?

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• ICS as guest in Ubuntu 12.04 host

  - by oshirowanen

  I have installed Android as per this guide as a guess os via VirtualBox: http://www.android-x86.org/documents/virtualboxhowto Using the following ISO: android-x86-4.0-RC1-eeepc.iso But I am unable to connect to the internet from within the android virtual machine. The host OS is Ubuntu 12.04 where the internet works fine. I have internet access via a usb wireless connection to the home router. All this is fine. If I install Ubuntu 12.04 as a guest, where the host is also Ubuntu 12.04. The guest os'es internet works fine out of the box. But for some reason, I can't get the above androids internet to work out of the box as the guest os. Anyone know what I am doing wrong?

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• Internet connection sharing: Ubuntu 9.10 Server on Windows 7 and VMWare

  - by avesse

  I'm trying to get Internet Connection Sharing (ICS) working between my Windows 7 RTM host and a Ubuntu 9.10 Server running on VMWare Workstation 6.5, but I have not been able to get it right. Here's what I have done: Configured VMWare to use Host Only networking (I tried NAT as well). Enabled ICS on my host's network connection, allowing VMnet1. After enabling it, Windows informed me that its VMnet1 IP has changed to 192.168.137.1. So in VMWare's Virtual Network Editor I configured VMnet1: Subnet 192.168.137.0 Mask 255.255.255.0 I did the same for DHCP. For NAT i set 192.168.137.1 as Gateway. I cannot ping any sites or get access through apt-get/aptitude install/update, although domains do get resolved to IPs. I have also tried using a static IP in Ubuntu. I don't know if it makes a difference, but my external IP is locked to my host's MAC address.

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• Raid HDD Boot up

  - by user234695

  My server is Power Edge 1950 running server 2008 32Bit, using 3 Physical SAS HDD as a Virtual 2 Disk configured for RAID5, with partition of C drive as OS and D drive as Data. Planning to format and install Server 2008 R2 64Bit so I insert a New Physical disk and configured as RAID5 and clone the C drive and D drive to the new hard disk. Now I need to test that the new hard disk is able to boot windows and work as expected. How do I test, I am not able to boot the windows by choosing the new harddisk, the bios show only the existing HDD, not the new one. Also, if I remove the old three hard disk, and leave the new harddisk and then am I able to boot the device, if I do this does my existing RAID5 configuration and data on the hard disk still remain.

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• Win7 to Win7 Remote Desktop Not working, Xp to 7 working fine

  - by vlad b.

  Hello, I have a small home network and recently i tried to enable remote desktop for one of the pc's. I have a mix of Windows 7, Windows Vista and Xp runing alongside ubuntu, centos and others (some virtual, some real). I have a few Windows 7 pc`s that can be connected to using remote desktop from inside and outside the network (port redirects on routers, etc, etc) and some Xp ones. The trouble is when i tried to do the same thing to a Win7 laptop i discovered i can't connect to it from another win7 pc inside the home network. To sum it up Working: xp -- win7 not working: win7 -- win7 What i tried - disable and enable remote desktop (my computer - remote settings) - removing and adding users to the remote settings window - adding a new user to the machine, administrator or 'normal' user - checking the firewall settings on the machine and set 'allow' to remote desktop for both 'home/work' and 'public'networks Any tips on what should i do next? It displays ' .. secure connection' and after that the window with 'Your security credentials did not work' and it lets me try again with another user/password..

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• Performance difference between MacBook Pro (2.8 GHz) vs Air (1.7 GHz)?

  - by jonathanconway

  I'm comparing these two Apple laptops: MacBook Pro (13", 2011 model): 2.8GHz dual-core Intel Core i7 processor with 4MB shared L3 cache 4GB (two 2GB SO-DIMMs) of 1333MHz DDR3 SDRAM AMD Radeon HD 6770M graphics processor with 1GB of GDDR5 memory on 2.4GHz configuration MacBook Air (13", 2011 model): 1.7GHz dual-core Intel Core i5 with 3MB shared L3 cache 4GB of 1333MHz DDR3 onboard memory Intel HD Graphics 3000 processor with 384MB of DDR3 SDRAM shared with main memory There's definitely a gap between them in terms of CPU speed and graphics, but what practical difference would this make on a day-to-day basis? On the one hand, I love the sleek, thin appearance of the Air. On the other hand, I don't want a machine that's going to be dog-slow when doing tasks such as running Virtual Machines, dual-booting to Windows and running multiple instances of Visual Studio, and maybe some light gaming. Is there going to be a major difference that makes the MacBook Pro a more attractive purchase?

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• Cannot access Application configured on local IIS 7 using IP/machine name

  - by SilverHorse

  I have a windows 7 machine 64 bit and IIS 7 I have a default website on the IIS.Its binding is {IP: All Unassigned , Port:80 , Host Name : blank} I have added a new asp.net application to that website,mapped physical path, have set the virtual path as "MyWebApp". Application pool for "MyWebApp" is "DefaultAppPool" {.Net Framework: 4.0 ; Managed Pipeline Mode: Classic} The problem I am facing is I can access the website using http://localhost, http://IP.IP.IP.IP and http://MyMachineName But I can not access the Application other than using http://localhost/MyWebApp What should I do if I want to access the webapp using http://MyMachineName/MyWebApp OR http://IP.IP.IP.IP/MyWebApp Please note : I have already created an inbound rule to allow all HTTP traffic for port 80 in firewall settings.

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• How to change from own Internal/Extrernal DNS to use an outsourced service like DNS Made Easy?

  - by Joakim

  Our current setup is a co-located linux box with an openvz kernel with a handful virtual containers for www, mail etc. and one container run Bind9 with a split views configuration serving External and Internal DNS. The HW-Node runs a shorewall firewall and all containers uses private ip's. The box (and DNS) basically handles web and mail for a handful domains and it works well but we still think it would be a good idea to outsource the public DNS and now to my question... Although I am fairly comfortable with the server stuff and DNS, I'm far from a pro and guess I basically need some confirmation that I am thinking in the right direction in that I basically just move the content of our external view (with zone files) to the external service and keep the internal view (or actually remove the view), update the new external DNS with thier names servers, update the info at my registrar and wait for propagation or have I missed something? Maybe someone else here run something similar already and can share some exteriences? I found this question which at least confirms it can be done.

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• Can not change to a static IP in Fedora 19

  - by user196272

  Im having a bit of a weird situation. Ive installed Fedora Linux 19 onto a virtual machine with no GUI. initially eth0 does not show up when I perform ifconfig. when I run dmesg | grep eth I see the adapter but it says it changed names to p2p1. Once I perform the ifconfig p2p1 up command it shows up. Now when I try to edit the /etc/sysconfig/network-scripts/ifcfg-p2p1, it does not exist. the only scripts that are there lo and enp0s3. If I try to create the ifcfg-p2p1 file with the correct settings, I can not restart the network service. I tried editing the enp0s3 file, but that did not work. Im fairly new to linux and not sure what else to put in here, so if you need any more information just let me know and Ill put it in here.

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• How to unmount a VHD in Windows 7. There is no unmount option.

  - by Triynko

  I mounted a VHD file in Windows 7 using the Disk Manager. Once mounted, there is no option to Unmount it. The only thing close to such an option that I can find is if I click the icon in the taskbar notification area that I use to remove USB devices... there's an option to eject the virtual hard disk. However, when I click that, it says that it's in use and cannot be ejected. Even though... it's not in use, I never even browsed the drive. The disk manager is closed... and the only open files handles to the drive (according to disk performance in task manager) is SYSTEM. Ejecting devices cleanly has been a problem since Windows XP, and it sickens me to see it persist into windows 7.

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• How to get a good current VMWare browser appliance?

  - by Brooks Moses

  I'd like to have a small VMWare virtual machine that runs a copy of Firefox, with Flash enabled. (Or some equivalently-capable browser.) I tried doing some Google searching with no luck finding good keywords, and tried looking through VMWare's "marketplace" of VMs, but all I found were things from 2006 or so. Is there a reasonably easy way to get a current one? Ideally, I'd like to just download one somewhere, but in the alternative, a quick how-to guide would be useful. I know I could go through the whole process of getting a full-Linux-install VM and setting things up, but that seems like quite a lot of trouble and ends up with a pretty heavyweight solution to the problem, so I'm hoping there's a simpler way.

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• Hyper-V Manager right clicking on remote VM causes MMC error

  - by Greg Bray

  I have a Windows 2008 R2 Enterprise Server with SP1 that I log into and use to manage virtual machines running on multiple HyperV servers on our domain. Sometimes when I right click on a remote VM the HyperV Manager will crash and display the following error message: If I use the Actions menu on the lower right it works just fine, but for some reason right clicking cause MMC to stop working. Is there any way to fix this issue? Here are the full details of the error message. Description: Stopped working Problem signature: Problem Event Name: CLR20r3 Problem Signature 01: mmc.exe Problem Signature 02: 6.1.7600.16385 Problem Signature 03: 4a5bc808 Problem Signature 04: Microsoft.Virtualization.Client Problem Signature 05: 6.1.0.0 Problem Signature 06: 4ce7c9e3 Problem Signature 07: 342 Problem Signature 08: 1f Problem Signature 09: System.OverflowException OS Version: 6.1.7601.2.1.0.274.10 Locale ID: 1033 Read our privacy statement online: http://go.microsoft.com/fwlink/?linkid=104288&clcid=0x0409 If the online privacy statement is not available, please read our privacy statement offline: C:\Windows\system32\en-US\erofflps.txt

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• SQL Server Express 2005 cannot connect

  - by jp

  hi all, I have a SQL Server Express 2005 install on a godaddy virtual terminal which currently is only connected to(locally with mgt studio) every few days or so. Every time i try to connect I get a cannot connect to SQL Server error and after a restart it I can connect just fine locally. I was wondering if there is a timeout setting or something that I am missing that I need to change so that if it is not connected to for a while it does not required a restart? any ideas? thanks!

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• Windows 7 Natively on Mac OS X Bootcamp, Airport Wifi Unable To Connect....

  - by Goober

  Hello! I am using a brand new MacBook Pro. I am running a copy of Windows 7 natively via bootcamp (No use of Virtual Machine Software at all). However the only way I can get Windows to connect to the internet is via ethernet, as opposed to the Macs Airport card picking up the wireless. It just refuses to connect, and gives me a limited access status. Any ideas!? I've run Windows XP natively via bootcamp and I had a few issues with the network constantly dropping out, however I blamed that on the drivers and the general shiteness of XP.... Help greatly appreciated.

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• How to alter mail-from postfix?

  - by Simon

  Hi all, do anyone know how to alter the mail-from of a postfix mail server? Example, I have a postfix mail server which sends mail for the domain example.org. When a linux user, whose account is user.example.org (mapped in postfix/virtual to [email protected]), try to send an email, its mail from is [email protected]. HELO hostname: server.hostname.org Source IP: one ip here mail-from: [email protected] Problems: user.example.org instead of just user. server.hostname.org instead of just example.org. Desired mail-from: [email protected]. This is causing me problems with SPF records for example (example.org differs from server.hostname.org)... any idea of what can be the problem? Thanks in advance, Simon.

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• Hosting 2 different SSL domains on the same IP [closed]

  - by Jim

  Possible Duplicate: Multiple SSL domains on the same IP address and same port? I have 2 different domains, domain1.com and domain2.net. Both require SSL certificates. I've got the certificates signed by a CA and now need to set them up on Apache. I've got a single IP address and have found a post here: SSL site not using the correct IP in Apache and Ubuntu that apparently works for ubuntu but I am on CentOS and have not had the same luck trying that configuration. When I try that configuration, Apache dies telling me that the port is already in use: (98)Address already in use: make_sock: could not bind to address 0.0.0.0:443 I had SSL working for a single domain but now that I've added the second, I get a browser warning about the cert not belonging to the domain. How do I get both domains to work using virtual host containers?

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