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• Under kvm, Vista guest OS install halts on black screen

  - by Isaac Sutherland

  I am using kvm on my ubuntu-server-10.04 amd64 dual core PC. I am trying to install a Windows Vista guest OS. The installation proceeds properly until the system reboot halfway into the installation process, at which point it stops on a black screen and CPU usage goes to near zero. I created the vm with virt-install as follows: virt-install -n vista --connect qemu:///system -r 1024 -vcpus 2 \ --os-type windows --os-variant vista \ --virt-type kvm --accelerate \ -c /dev/sr0 \ --disk path=/dev/main/vista-hd \ --network bridge=br0 \ --vnc --noautoconsole Where /dev/sr0 is the physical drive with the vista installation DVD, and /dev/main/vista-hd is a 20-GB lvm logical volume I created. A number of people seem to have had success installing vista under KVM, but I haven't been able to determine what is causing my problem. Ideas anyone?

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• Website requests not reaching IIS?

  - by pete the pagan-gerbil

  To start off with a confession, I am not a server admin - just a developer tasked with getting to the root of a problem. Please be gentle! I have an intranet ASP.NET website running in IIS on a virtual machine. The website is not accessed very often (the last IIS log file was modified nearly six months ago). Both the IP address and Host header value are now failing to return the website, and the IIS log still doesn't show any more recent activity. The virtual machine was moved to a different physical location a few months ago, and the IP address for it has changed. Could this be what has broken access to the site? What else should I be checking to solve this? I don't have totally unrestricted access to the building's network settings, structures, etc. I would be grateful for any advice, even if I can't use it myself it'll improve my knowledge of what's going on behind the scenes!

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• Create Google Maps screenshots at regular intervals

  - by Dave Jarvis

  Background People are concerned that building a pipeline to the West Coast of Canada will increase the number of oil tankers, thus increasing the probability of a major oil spill, thereby creating an environmental catastrophe. The AIS Live Ships Map website captures real-time Marine Traffic updates using a Google Maps interface. While it is possible to obtain data from an AIS data feed, often the feeds are either pay-for-use, or otherwise encumbered with license restrictions. Problem The AIS Live Ships website presents a map in the browser: The map above has had its location interactively changed to focus on the area in question: the northern straight of Vancouver Island. Question How would you create a service that captures the map every 30 minutes and that could run, with neither user-intervention nor a significant memory footprint, for a few years? Idea #1 Create a virtual machine. Install and run a light-weight browser. Use Shutter to take captures at regular intervals. Idea #2 Use Python's Ghost Webkit to automate the captures. Thank you!

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• Are there any negative impact running all services on a single static IP?

  - by Jake

  I need to setup a VPN trunk (with remote branch office location), Video Conference and Web Server on-premise in the office. I am used to ISP providing blocks of 8 or 16 IPs. But I have a new ISP which says they only can provide a single IP. Are there any issues with running all services on a single IP? I don't think this has any thing to do with bandwidth..? I'm not using SSL certificates... I can do port forwarding to different machines... What else...? Disclaimer: I am a programmer by training. Sorry for noob question.

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• Can I set up OpenVPN on two or more machines so that they can each act as client and server?

  - by ianfuture

  The question summarises what I want to achieve. In more detail: I have a Windows XP Pro PC at a work location that I want to be able to access my home Windows XP Pro PC and other home computers from. But I also want to be able to connect to the work PC from home. I think the term generally used is a "mesh" network. Can I do this with OpenVPN ? If so how would I do it? What are the most important things to remember to do? EDIT: The work Windows XP Pro PC is largely managed by IT Dept, I do have local admin rights to install things. Some settings are disabled. My main concern was firewalls and port forwarding on the work PC. Any suggestions?

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• 1 TB hdd and no space to create a partition for linux !

  - by rangalo

  I have a brand new Acer aspire 5811 with core i5 processor and all that. There is windows 7 Home Premium pre-installed on it. I want to install arch and setup a dual boot system. The problem is: Windows shows 4 partitions 14 MB UNKNOWN recovery partition 100MB NTFS System Reserved partition for Windows 7 448GB NTFS Windows 7 system partition 468GB NTFS Data partition for windows 7 But GpartedLive cd and also arch setup show 5 partitions 938Kb UNKOWN system reserved partition 14 MB UNKNOWN recovery partition 100MB NTFS System Reserved partition for Windows 7 448GB NTFS Windows 7 system partition 468GB unusable space Because of this, I cannot create another primary partition. Can any body guide me about how should I go for creating partition for installing arch ? Note: I need to keep windows 7 working. regards.

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• Can't Launch Firefox on OS X 10.6

  - by user61804

  When I try to run Firefox 3.6 or 4 beta I get a message saying: Profile Missing Your Firefox profile cannot be loaded. It may be missing or inaccessible. I have tried running the profile manger from the command line using: /Applications/Firefox.app/Contents/MacOS/firefox-bin -ProfileManager I get the same message in the popup, but I also get: Error: Access was denied while trying to open files in your profile directory. I have tried deleting firefox and reinstalling it. I have also tried deleting anything related to Firefox or Mozilla in the ~/Library/Application Support directories, but nothing seems to help. In addition I have run the disk utility to fix any permissions issues. If I create a new profile or run the command with sudo it works. It seem that that Firefox is trying to put the profile somewhere it doesn't have access to write, but I can't figure out how to change this location or change the permissions. Any help would be greatly appreciated.

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• Cannot boot from windows 7 DVD

  - by webnoob

  Hi All, I have just purchased windows 7 64bit. I entered the disk in the drive and it told me I couldn't upgrade as I am using XP so I have tried to boot from CD instead but it doesn't work. It seems to look at the disk for a few seconds and then ends up at a screen saying windows failed to start and then I hit enter and it loads windows XP again. Does anyone know what could cause this? Here is my system info: Time of this report: 4/15/2010, 18:11:39 Machine name: MYCOMP Operating System: Windows XP Professional (5.1, Build 2600) Service Pack 3 (2600.xpsp_sp3_gdr.100216-1514) Language: English (Regional Setting: English) System Manufacturer: Dell Inc. System Model: OptiPlex 755 BIOS: Phoenix ROM BIOS PLUS Version 1.10 A09 Processor: Intel(R) Core(TM)2 Duo CPU E6550 @ 2.33GHz (2 CPUs) Memory: 3316MB RAM Page File: 568MB used, 4631MB available Windows Dir: C:\WINDOWS DirectX Version: DirectX 9.0c (4.09.0000.0904) DX Setup Parameters: Not found DxDiag Version: 5.03.2600.5512 32bit Unicode

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• Cannot boot from windows 7 DVD

  - by webnoob

  Hi All, I have just purchased windows 7 64bit. I entered the disk in the drive and it told me I couldn't upgrade as I am using XP so I have tried to boot from CD instead but it doesn't work. It seems to look at the disk for a few seconds and then ends up at a screen saying windows failed to start and then I hit enter and it loads windows XP again. Does anyone know what could cause this? Here is my system info: Time of this report: 4/15/2010, 18:11:39 Machine name: MYCOMP Operating System: Windows XP Professional (5.1, Build 2600) Service Pack 3 (2600.xpsp_sp3_gdr.100216-1514) Language: English (Regional Setting: English) System Manufacturer: Dell Inc. System Model: OptiPlex 755 BIOS: Phoenix ROM BIOS PLUS Version 1.10 A09 Processor: Intel(R) Core(TM)2 Duo CPU E6550 @ 2.33GHz (2 CPUs) Memory: 3316MB RAM Page File: 568MB used, 4631MB available Windows Dir: C:\WINDOWS DirectX Version: DirectX 9.0c (4.09.0000.0904) DX Setup Parameters: Not found DxDiag Version: 5.03.2600.5512 32bit Unicode

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• Slow IE8 Start-up due to LDAP DNS queries

  - by MikeJ-UK

  Recently (in the last few days), my installation of IE8 has been taking 15 to 20 seconds to load my home page. Specifically, the sequence of events (as reported by WireShark) is:- Browser issues a DNS A query to resolve the home page server's IP address. Browser then spends the next 15-20 seconds broadcasting DNS SRV _LDAP._TCP queries, (roughly on a 2 second tick) to which it receives no answer (we have no LDAP servers). Browser re-issues the DNS A query and resolves the server's IP address again. Finally, the browser issues an HTTP GET for the home page. Does anyone know why this is happening? Possibly related to this question EDIT: @Massimo, LDAP query is :- Domain Name System (query) Transaction ID: 0x11c5 Flags: 0x0100 (Standard query) Questions: 1 Answer RRS: 0 Authority RRS: 0 Additional RRS: 0 Queries _LDAP._TCP: type SRV, class IN Name: _LDAP._TCP Type: SRV (Service location) Class: IN (0x0001)

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• Why does my Mac always crash when I enable `ask for password after screensaver ended`?

  - by Koning Baard XIV

  I have enabled these two things: Placing the mouse-pointer in the bottom-left corner of any display makes the screensaver appear After the screensaver or stand-by has ended, ask for password However, this combination always leads to this (Black Screen of Death) after entering the screensaver with the bottom-left corner: Here are my system specs: Hardware Overview: Model Name: iMac Model Identifier: iMac9,1 Processor Name: Intel Core 2 Duo Processor Speed: 2,66 GHz Number Of Processors: 1 Total Number Of Cores: 2 L2 Cache: 6 MB Memory: 2 GB Bus Speed: 1,07 GHz Boot ROM Version: IM91.008D.B08 SMC Version (system): 1.44f0 Serial Number (system): W89171JF0TF Hardware UUID: 323A90F0-8A2F-5057-B501-2087489E0DFF System Software Overview: System Version: Mac OS X 10.6.3 (10D573) Kernel Version: Darwin 10.3.0 Boot Volume: Macintosh HD Boot Mode: Normal Computer Name: YOU SHOULD NOT KNOW THIS User Name: YOU SHOULD NOT KNOW THIS Secure Virtual Memory: Not Enabled 64-bit Kernel and Extensions: No Time since boot: 11:46 Can anyone help me? Thanks

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• My External USB drive stops after reading some data

  - by user191542

  I had the external USB 3.0 western Digital My Book essential 3TB drive. I had loto of data on it. Suddenlt when i start copying data from it then after reading 20GB or so data then i get error that system can't read from the location. I have to turn the uSB power off , disconnect it and then again connect it. so i have to trnasfer the data in small chunks like 20Gb , 30GB etc. I have n ow transferred all the data but i want to know that is hard disk gone or it can be fixed or its something windows fault not HD fault

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• Asus P6X58D & 12GB of RAM

  - by Hunter

  I just assembled my new PC and it screams, BUT it's only recognizing 8GB of ram in BIOS and OS rather than the installed 12GB. In the BIOS the RAM was registering at 1066 so I set it to 1600MHz. I update the BIOS to the latest non-beta release. http://www.asus.com/product.aspx?P_ID=wurRaDZ8lo4Ckukj OS = Windows 7 Ultimate 64-bit Mobo = Asus P6X58D Premium CPU = Intel Core i7 920 RAM = CORSAIR XMS3 12GB (6 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 HDD = Intel 80GB SSD SATA II PS = Kingwin 1000W Modular I've installed the Beta BIOS 0808 but no luck!

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• Ubuntu dpkg error , after crash and filesystem error recovery

  - by Radian

  Ubuntu recently crashed , causing it's partition damaged ( which is EXT4) and Ubuntu was unable to boot , because it couldn't mount anything , only displays Busybox So I used the Live CD to run fsck on the partition, which fixed it , but deleted some nodes Now Ubuntu is working , but some files were missing , for example I lost the Panels configurations and Chromium's Extensions The Most Annoying problem , that there is some files corrupted , for example when I try to install any program, I got this (Reading database ... 95%dpkg: unrecoverable fatal error, aborting: files list file for package 'libservlet2.4-java' is missing final newline I tried these commands dpkg --configure -a apt-get -f install and from GUI , Synaptic Package Manager Fix Broken Packages So this file "libservlet2.4-java" Does anyone knows what it does ! and where it's location ? and how can I fix/get-correct-version-of it ? Also , is there any way I could tell Ubuntu to Check for ALL it's file , and if there is something corrupted it should recover it form the CD ?

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• Virtualbox PXE Boot Failing with a Windows Server 2008 R2 Server

  - by Vbitz

  Some fast help on this would be good, I have been on this problem for 14 hours. In a Virtualbox test environment I have 2 virtual machines networked together using a internal network (no traffic runs though the host, it is all at a software level). One is a fresh client with 512mb of ram and a dual core set-up, the other is the server with 1.5GB of ram and running server 2008 r2. The server is configured as a dns server, dchp server, domain controller and also serves PXE booting though WDS (Windows Deployment Services). Both machines can see each other and I am able to start a network boot. The issue comes at the second to last stage of the pre windows PE install. On TFTP download of boot.sdi it starts it but stops during the boot process.

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• Recommended CPU upgrade for Dell Vostro 220 with E7300 processor?

  - by Justin Grant

  I've got a Dell Vostro 220 with an E7300 processor (Intel Core 2 Duo @ 2.66Mhz, LGA775 socket) and I'm thinking about upgrading my processor so I can run Windows Server 2008 R2 with Hyper-V, which requires Hardware Virtualization support in the processor. Yes, I know this is underpowered for a server, I'm actually using it as a desktop machine but I'd like to use Hyper-V instead of Virtual Server (which I'm using now for running VMs). I'd like to keep the same motherboard and ideally the same CPU fan and RAM too. Any suggestions for a good, relatively cheap (under $200) processor upgrade?

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• df -h showing wrong output in GB

  - by Anurag Uniyal

  If I list df output for KB, MB and GB, they do not match e.g. $ df -k |grep xvdb /dev/xvdb1 12796048 732812 11413172 7% /xxx $ df -m |grep xvdb /dev/xvdb1 12497 716 11146 7% /xxx $ df -h |grep xvdb /dev/xvdb1 13G 716M 11G 7% /xxx 12796048 KB = 12496.14 MB so that is slight off but OK 12796048 KB = 12.2 GB, 12407 MB is also 12.2 GB so why df is showing 13 GB or am I missing something? Here is full df listing $ df -h Filesystem Size Used Avail Use% Mounted on /dev/xvda1 7.5G 1.7G 5.5G 24% / none 5.8G 128K 5.8G 1% /dev none 5.8G 0 5.8G 0% /dev/shm none 5.8G 44K 5.8G 1% /var/run none 5.8G 0 5.8G 0% /var/lock none 5.8G 0 5.8G 0% /lib/init/rw /dev/xvdb1 13G 716M 11G 6% /xxx Coreutils version seems to 7.4 as info coreutils shows This manual documents version 7.4 of the GNU core utilities,

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• Exception while bamboo is checking for changes in svn

  - by tangens

  While configuring a new test plan in Atlassian bamboo, I get the following exception in the log: Recording error: Unable to detect changes : <projectname> Caused by: org.tmatesoft.svn.core.SVNException: svn: Unrecognized SSL message, plaintext connection? svn: OPTIONS request failed on <repo-path> I tried to access the svn repository by hand and it worked (URL looks like this: https://myrepo.org/path/to/repo). The svn sits behind an apache http server. Both the bamboo server and the svn server are running Debian 4.0. Has anybody seen this error before and can give me a hint how to fix it?

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• Windows 7 Service Pack 1 Install Failing

  - by Cu Jimmy

  I am having real trouble updating one of my machines to Win7 Service Pack 1. Its an Asus P5K board with an X9650 Quad Core Extreme chip, which is a less common type of chip. Was wondering if anyone has had issues with this kind of kit or if it may just be the motherboard is a little gone. The error message I get back from Microsoft Update is WindowsUpdate_80091007 and WindowsUpdate_dt000 which are fairly generic errors. Tried installing with the sp1 file based installer and got nowhere. The actual installer crashes with an SP Installer has crashed Its a fresh install on a fully scrubbed drive (an Intel 120GB SSD).

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• Block spam by using geoip filter?

  - by faultyserver

  We are looking for a way to be able to block spam based on geographic location by filtering using geoip. context: we rarely have any email correspondence outside of the USA, so we would like to block all incoming email outside the US except for maybe one or two countries. After a little Googling I have found a couple of solutions that may work (or not), but I would like to know what other sysadmins are currently doing or what they would recommend as a solution. Here is what I have found so far: Using PowerDNS and its GeoIP backend it is possible to use geoip for filtering. Normally this backend is used to help distribute load as a kind of load balancing but I dont see why it couldnt be used to kill spam as well? Possibly use the Maxmind lite country database and some scripting to do a similar job. Ideally what I am looking for is a solution that would handle decent load and scale well too...aren't we all! ;) Thanks in advance for your help! :-)

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• Is there a way I can use $PATH as defined by my bash profile?

  - by Adam Backstrom

  I spend most of my day ssh'd into servers. I have a series of aliases/functions/scripts that allow me to type p hostname from the terminal and execute GNU screen(1) on the remote side, using the following command: exec ssh hostname -t 'screen -RD'` I've only recently noticed that ssh -t does not get my custom $PATH. Here's some terminal output: adam@workstation:~:0$ sh server 'echo $PATH' /home/adam/bin:/usr/local/bin:/bin:/usr/bin:/opt/git/bin:/opt/git/libexec/git-core adam@workstation:~:0$ ssh server -t 'echo $PATH' /usr/local/bin:/bin:/usr/bin Connection to uranus.plymouth.edu closed. My biggest problem is my custom aliases only try to execute screen, since I can't guarantee an absolute path, and my $PATH is structured so the shell should find the correct one. If my $PATH settings aren't honored, my scripts don't work. Is there a way I can use $PATH as defined by my .bashrc/.bash_profile? I believe PermitUserEnvironment is disabled.

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• Hyperthreading vs. SQL Server & PostgreSQL

  - by IanC

  I have read that hyperthreading is a "performance killer" when it comes to DBs. However, what I read didn't state which CPUs. Further, it mostly indicated that I/O was "cut to < 10% performance". That logically doesn't make sense since I/O is primarily a function of controllers and disks, not CPUs. But then no one ever said bugs made sense. What I read also stated that SQL Server could put two parallel query ops onto 1 logical core (2 threads), thereby degrading performance. I have a hard time believing SQL Server's architects would have made such an obvious miscalculation. Does anyone have and data on how hyperthreading on current generation CPUs affects either of the RDBMSs I mentioned?

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• Can't connect to Apple Time Capsule in home network using Home Plugs from Win 7 Machine

  - by Eugene

  I have the following home network setup with subnet 255.255.255.0 but recently moved my time capsule to a different location when I added a third Home Plug and can no longer ping or map a network drive to it from the Windows 7 Machine. However using Airport Utility on the Windows 7 machine I can manually configure the Time Capsule. Using a Macbook on WIFI Network 1 or 2 - I can backup to the time capsule, so its accessible via both the router wifi network and the time capsule wifi network. The Time Capsule is set to BRIDGE function - ie no NAT or DHCP server enabled. Any bright sparks out there that can help diagnose the problem? Router (192.168.1.254) WIFI Network 1 | | |---- Home Plug one |---- Home Plug Two | |---- Computer A Windows 7 (192.168.1.160) | |---- Printer (192.168.1.69) |---- Home Plug Three | |---- Apple Time Capsule (192.168.1.150) WIFI Network 2 |---- Smart TV (192.168.1.70) | |---- Apple TV (192.168.1.4)

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• How to automatically make a change to Outlook Microsoft Exchange Proxy Settings

  - by Richard West

  I need to make a change on all computers in our domain. Specifically I need to make a change to the Microsoft Exchange Proxy Settings. Our users have Outlook 2010 installed. These setting can be mannually accessed from: Control Panel - Mail - E-mail Accounts - (Select Account) - Change Account - More Settings - Connection Tab - Exchange Proxy Settings I need to have both the "On fast networks" and "On slow networks" check boxes selected. Obviously the idea of asking my users to go through the process above to make these changes is not ideal. Therefore I looking for advice on how I can automatically push these setting to my user base. I have seached the registry but I have been unable to find the location that this setting is saved. Thanks for any help!

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• Which version of Windows Server 2008?

  - by dragonmantank

  One of the projects I'm working on is looking like we're going to need to migrate from CentOS 5.4 over to something else (we need to run Postgresql 8.3+, and CentOS/RHEL only support 8.1), and one of the options will be Windows Server. Since 2008 R2 is out that's what I'm looking at. I'll need to run Postgres and Tomcat and don't really require anything that Windows has like IIS (if I can run Server Core, even better!). The other kicker is it will be virtualized through VMWare ESXI 4.0 so that we have three separate boxes: development, Quality, and Production servers. From a licensing standpoint though, and I good enough with just the Web Server edition? Am I right in assuming that will be three licenses? Or should I just jump up to Enterprise so that I get 4 VM licenses?

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