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• New XEN Server, Intel i7, Errors were encountered while processing: xen-linux-system-amd64

  - by Sheldon

  I have just got a new machine to run XEN VM's on, it has an Intel i7 processor: - Intel Haswell Core i7-4790 3.6GHz 8MB LGA1150 I have setup the host with the current 6.2.0 I have set up a new Debian 7 64bit VM and any package I try and run fails with the following errors: Errors were encountered while processing: xen-utils-common xen-utils-4.1 xen-system-amd64 xen-linux-system-3.2.0-4-amd64 xen-linux-system-amd64 E: Sub-process /usr/bin/dpkg returned an error code (1) Excuse my noob-ness but should it even be running an AMD package ? Any ideas on how to fix this ? Thanks

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• Semi-random clicking sound from Macbook Pro

  - by Justin Love

  There is an occasional click sound coming from my Macbook Pro (17", 2.2 Ghz Core 2 Duo) I upgraded to Snow Leopard recently, but the computer was also in for service about week before that, so I can't be certain the OS upgrade is related. The sound has no set interval and frequency varies from rare to every few seconds. I can alleviate the sound by turning up the fan speed with smcFanControl. Turning the right fan up about half way seems to be sufficient. Unfortunately, turning up the left fan also causes the right to turn on, because the sound seems to be slightly more to the left. The cause seems to be either a fan or heat-related.

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• HFS for Windows by Paragon BSOD

  - by texmex5

  Installed HFS for Windows 7 yesterday. Did a reboot. Copied some files from my internal drive to external hfs drive. Did another reboot and rebooted to Mac. Mac worked fine. Then yesterday the battery went dead on my mac and the computer switched off. This morning tried to boot into windows but got a BSOD as soon as I moved my mouse in the login screen. BSOD refeers to an error with service HFSPLUS.SYS Now when I try to boot into mac (pressing alt while restarding) the mac drive isn's shown and I can only boot into Windows 7 Safe Mode. Cannot uninstall HFS for Windows the uninstaller in control panel says: "THE WINDOWS INSTALLER SERVICE COULD NOT BE ACCESSED. THIS CAN OCCUR WHEN WINDOWS INSTALLER IS NOT CORRECTLY INSTALLED". SETUP: Intel Core 2 Duo, P8600 @ 2.40GHZ, 4GB RAM, WINDOWS 7 ULTIMATE 32 BIT

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• Laptop HDD failure imminent?

  - by Andrei Rinea

  I have an HP Compaq 615 laptop with an 160 GB 7200 rpm HDD. Hasn't been dropped or shaken, in fact it almost always stayed on my desk. I've treated it as nice as I could. The other day, however, my OS froze and I could hear a repeated clink-clink-clink coming from the HDD zone of the laptop. I had to switch off hardware-ly the laptop and re-start it. It worked very well after, including now. However I backed up immediately the core data on my USB drive and ordered an external USB HDD for periodic backups. Will it die soon or it was just a "blip"?

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• Mac OS X: network disabled because security breach

  - by fireeyedboy

  Dear all, I just recieved a message on my Mac OS X system telling me (loosely translated from Dutch): "The network has been temporarily disabled because the network's security was breached." (It's a wireless WPA2-PSK secured network BTW) I looked in the logs of my router (a Zyxel P-2602HW-D1A) only to see a few (outbound) "syn flood TCP ATTACK" logs, but those were from like a week ago, other than that nothing. What tools on Mac OS X do I have to analyse this security breach occurence? Are there some security logs on Mac OS X that I can inspect? What other measurements should I take? And how serious should I take this warning from Mac OS X? System: Macbook Pro Intel Core 2 Duo 2.2 Ghz OS: Mac OS X 10.5.8 Network: wireless WPA2-PSK Relevant software: Parallels Desktop with Windows XP (was open, but stopped at the time) Other systems on my network: Windows XP SP3 desktop (was running at the time) If you need any more info, don't hestitate to ask. Thanks in advance.

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• Disable Memory Modules In BIOS for Testing Purposes (Optimize Nehalem/Gulftown Memory Performance)

  - by Bob

  I recently acquired an HP Z800 with two Intel Xeon X5650 (Gulftown) 6 core processors. The person that configured the system chose 16GB (8 x 2GB DDR3-1333). I'm assuming this person was unaware these processors have 3 memory channels and to optimize memory performance one should choose memory in multiples of three. Based on this information, I have a question: By entering the BIOS, can I disable the bank on each processor that has the single memory module? If so, will this have any adverse effects or behave differently than physically removing the modules? I ask due to the fact that I prefer to store the extra memory in the system if it truly behaves as if the memory is not even there. Also, I see this as an opportunity to test 12GB vs. 16GB to see if there is a noticeable difference. Note: According to http://www.delltechcenter.com/page/04-08-2009+-+Nehalem+and+Memory+Configurations?t=anon, the current configuration reduces the overall data transfer speed to 1066 and in addition, the memory bandwidth goes down by about 23%.

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• Ubuntu Server 12.04 LTS on Hyper-V 2012

  - by user137533

  I have the following scenario: Hyper-V 2012 server core installation. On top of this i created a virtual machine on which i tried installing Ubuntu Server 12.04 which should not have any compatibility issues according to what Microsoft and Ubuntu are saying (although it is not officially supported). I start, run the installation and everything is ok, no problems detecting the network device or the hard drive (unlike debian which didn't even detect the hard drive). Once the installation is complete it asks me to reboot, it unmounts the "dvd drive" and reboots. Once it tries to start again i get the following error: Boot failure. Reboot and Select proper Boot device or Insert Boot Media in the selected Boot device. It seems to not be booting up from the virtual hard drive. The hard drive is set up in SCSI mode, nothing mounted on the IDE controller (no iso image or anything else. Does anyone have any ideas on what i can do to solve this?

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• Thunderbird: mails not displayed while everything worked a few minutes ago

  - by roland

  Hi all, I upgraded my Kaspersky and I closed everything before launching the upgrade process. Everything went well, but when I launched my Thunderbird, no mail and content were displayed. Everything is blank. Strangely my accounts are detected when expanding Tools/Account Settings. I completely closed Kaspersky and launched Thunderbird again, but it fixed nothing :( It is as if closing Thunderbird has damaged a core file. Any idea how to fix it? Thanks. Roland

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• PSU Suggestions for SLI EVGA GTX 680 + i7

  - by JMH

  So i am putting together a new machine and am trying to determine the best PSU to go with for this setup. Here is the build i am thinking about Processor Intel Core i7-3770K Ivy Bridge 3.5GHz Motherboard ASRock Z77 Professional Graphics Card (2 SLI) EVGA 02G-P4-2680-KR Sound Card HT | OMEGA eClaro 7.1 Fan/Heat Sync ZALMAN CNPS9500A-LED Case COOLER MASTER HAF X RC-942-KKN1 RAM G.SKILL Ripjaws X Series 32GB (4 x 8GB) SSD Of some Sort So my guess is that i need a 750 -1000W PSU, but which brand.... how much, etc --- really in the woods. Thanks -Josh

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• SQL Performance Problem IA64

  - by Vendoran

  We’ve got a performance problem in production. QA and DEV environments are 2 instances on the same physical server: Windows 2003 Enterprise SP2, 32 GB RAM, 1 Quad 3.5 GHz Intel Xeon X5270 (4 cores x64), SQL 2005 SP3 (9.0.4262), SAN Drives Prod: Windows 2003 Datacenter SP2, 64 GB RAM, 4 Dual Core 1.6 GHz Intel Family 80000002, Model 6 Itanium (8 cores IA64), SQL 2005 SP3 (9.0.4262), SAN Drives, Veritas Cluster I am seeing excessive Signal Wait Percentages ( 250%) and Page Reads /s (50) and Page Writes /s (25) are both high occasionally. I did test this query on both QA and PROD and it has the same execution plan and even the same stats: SELECT top 40000000 * INTO dbo.tmp_tbl FROM dbo.tbl GO Scan count 1, logical reads 429564, physical reads 0, read-ahead reads 0, lob logical reads 0, lob physical reads 0, lob read-ahead reads 0. As you can see it’s just logical reads, however: QA: 0:48 Prod: 2:18 So It seems like a processor related issue, however I’m not sure where to go next, any ideas? Thanks, Aaron

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• Browsers not responding

  - by Jesper

  Hello, Strange thing started to happen to my computer yesterday, and I can not recall installing anything new or updating anything the last few days either. It was first the browser, Chromium, that started to freeze up and not respond for ages, say 10 minutes. Then my email, Windows Live Mail client started doing the same thing, I click on an email and the program goes "not responding" for 5-10 minutes. At first I thought it was Chromium, so i reinstalled it but no help, So i installed Opera and thought I would give it t a try, but not same thing is happening to Opera so it is clearly an OS issue or/and internet connection issue. Does anyone know what the problem can be? Im running Windows 7 32bit on a dual core Sony vaio laptop with 4gb ram. There is nothing wrong with the actual internet connection as it works fine on other computers on the network, and the connection it self does not drop. Grateful for any help, Jesper

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• What FTP clients securely handle FTP/TLS where the server has a self-signed cert?

  - by billpg

  I'm trying to connect to an FTP server that uses TLS on port 990. Unfortunately, the server uses a self-signed cert. What FTP clients for Windows handle this type of connection securely, such that I can securely verify the cert before continuing with the connection and logging in? (The server admin has supplied me with the expected certificate thumbprint to look for.) As an example of doing it wrongly, Core FTP LE 2.2 presents a dialog with basic information about the cert presented, inviting me to accept-once, accept-always or cancel. The dialog does not include the cert's hash/thumbprint and without that thumprint, I can't verify if the cert I'm being presented is the right one.

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• Can I use a Mac Mini as a web server and database server? What are the pros and cons?

  - by Christopher Altman

  We are a bootstrapped web start up. We have a LAMP web application that we expect relatively low to mid traffic because users need an account to log in. Our current approach is to colocate two servers, a web and mysql database server. We are planning to use Ubuntu Server 9.04. We have shopped around for dedicated servers but the price range from $900 to $1500 per month, therefore we are exploring the colocation approach. We are considering purchasing two Mac Minis (2.0GHz Intel Core 2 Duo 2 Gb RAM) because we are familiar with the machines are the prices are relatively inexpensive. What are the pros and cons of using these 'non-server' grade machines? We would install Ubuntu Sever and attach firewire external hard drives. Any advice on how to set up 'good-and-economic' web/database servers is welcomed.

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• How do I know which hardware components are compatible when building a computer?

  - by darkie15

  I am trying to setup my own new computer. I haven't done this before and hence needed guidance from all here. I can google out the results for steps to follow for setting up my machine, but I do not understand what components are compatible with each other? For example there must be specific models of motherboard that are compatible with Intel Core i5-2500K Sandy Bridge 3.3GHz. In general, if there is a website that can guide me on all compatible components, that would be great. If not, how would I be able to check compatibility?

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• (OS 10055) Queue full

  - by Ali

  I'm using apache with mysql on the other server, apache on windows 2003 with 4gb ram 3 dual core CPU My server keep on running smoothly without any issue for about 3 days or roundabout 60+ hours however between 60-70 hours my apache stop working & log events shows this error, I tried to search a lot but helpless, I have already increased max port, please if someone can help ? (OS 10055)An operation on a socket could not be performed because the system lacked sufficient buffer space or because a queue was full. : make_sock: unable to listen for connections on address 0.0.0.0:80

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• How to grow from single server setup

  - by Jenkz

  I'm looking for resources on how to grow our server setup. We currently have one dedicated server with Rackspace in the UK of the following spec: HPDL385_G2_PrevGen HP Single Dual Core Opteron 2214 (2.2Ghz) 4GB RAM 2x 10,000 SCSI Drives in RAID 1 Our traffic is up to 550,000 UVs per month. The site runs off a PHP and MySQL setup. The database gets an absolute hammering, we have many complex queries joining multilpe tables. We are using APC for PHP caching. I'm getting to the stage where I've done as much DB and query optimisation as I can and wonder what the next step should be...... I've looked at memcache, but I've got the impression that his requires a large amount of RAM and ideally a dedicated box.... So is the next step to have two boxes; one for database, one for Apache? Or is there a step I've overlooked. Our load is usually around the 2 mark, but right now it's up at 20!

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• How to grow from single server setup

  - by Jenkz

  I'm looking for resources on how to grow our server setup. We currently have one dedicated server with Rackspace in the UK of the following spec: HPDL385_G2_PrevGen HP Single Dual Core Opteron 2214 (2.2Ghz) 4GB RAM 2x 10,000 SCSI Drives in RAID 1 Our traffic is up to 550,000 UVs per month. The site runs off a PHP and MySQL setup. The database gets an absolute hammering, we have many complex queries joining multilpe tables. We are using APC for PHP caching. I'm getting to the stage where I've done as much DB and query optimisation as I can and wonder what the next step should be...... I've looked at memcache, but I've got the impression that his requires a large amount of RAM and ideally a dedicated box.... So is the next step to have two boxes; one for database, one for Apache? Or is there a step I've overlooked. Our load is usually around the 2 mark, but right now it's up at 20!

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• What sort of attack URL is this?

  - by Asker

  I set up a website with my own custom PHP code. It appears that people from places like Ukraine are trying to hack it. They're trying a bunch of odd accesses, seemingly to detect what PHP files I've got. They've discovered that I have PHP files called mail.php and sendmail.php, for instance. They've tried a bunch of GET options like: http://mydomain.com/index.php?do=/user/register/ http://mydomain.com/index.php?app=core&module=global§ion=login http://mydomain.com/index.php?act=Login&CODE=00 I suppose these all pertain to something like LiveJournal? Here's what's odd, and the subject of my question. They're trying this URL: http://mydomain.com?3e3ea140 What kind of website is vulnerable to a 32-bit hex number?

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• Cannot log on to a remote server using rdp from windows 7 machine when I am remotley connected to th

  - by Gary

  Bear withe me, here is my set up. I use my 27" iMac 3.06GHz Core 2 Duo 4GB Ram to connect to my work desktop running Windows 7. From there I can administer other remote servers. Here is the problem. Using the Remote Desktop Client on my Mac I can connect to my work machine no problem. But when I then use the work machine to open a remote desktop session with another Windows server (usually SBS 2003 but applies to all) I get the log in prompt, I enter the user name password ensure i'm connecting to the domain, but it wont log me in. The error message is the same, as though I had typed the wrong password (i know this is not the case). Does anyone have a solution? Thanks in advance. Gary

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• Options to optimize lotus notes 8.5.X

  - by Jakub

  Has anyone found actually useful optimization methods for the bulky, fat, eclipse giant, nuissance that is Lotus Notes 8.5? I want it to be fast, and not eat up system resources like crazy while I run it ALL day (as it is my company's corporate mail / cal / scheduling solution). I've tried various hacks for the JVM heap size (if I recall correctly). None really bring a performance improvement. I have a dual core cpu, if that helps (I tried going the route of optimizing JAVA for 2 cores in hopes it would work, but seen no speed improvement). Notes is just sooo bloated, anyone have any suggestions to optimize/mod this thing so it is more responsive and less of a resource hog. Note: I don't want to switch to the web version, or the standard stripped down versions, I am aware of those, I just cannot since we don't run those internally for the company.

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• How can I connect to a Windows server using a Command Line Interface? (CLI)

  - by HopelessN00b

  Especially with the option to install Server Core in Server 2008 and above, connecting to Windows servers over a CLI is increasingly useful ability, if not one that's very widespread amongst Windows administrators. Practically every Windows GUI management tool has an option to connect to a remote computer, but there is no such option present in the built-in Windows CLI (cmd.exe), which gives the initial impression that this might not be possible. Is it possible to remotely management or administer a Windows Server using a CLI? And if so, what options are there to achieve this?

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• New graphics card (GTX 760) slowing down entire PC

  - by Cayetano Gonçalves

  My new graphics card is making my PC totally unusable. It boots up really slowly, and when the windows screen comes on, the mouse lags really far behind. Nothing opens at a normal speed. However, when I put in my 5-year old graphics card, it all works fine. I'm currently using a Foxconn Renaissance LGA 1366 Intel X58 ATX Motherboard, Intel Motherboard Intel Core i7-950 Bloomfield 3.06GHz LGA 1366 130W Processor, and a EVGA SuperNOVA 850G2 80PLUS Gold Certified ATX12V/EPS12V 850W Power Supply . I know it can't be the power supply, because I just bought it today to try to fix the problem. I've also installed the newest version of BIOS available for my motherboard. I've also seen extreme variations in CPU while the new graphics card is in, and when the old graphics card is installed, it is much calmer. Any thoughts?

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• Eclipse on mac: how comes that everytime I install an Eclipse plug-in on my mac I always get this er

  - by Patrick

  I'm using Eclipse for several projects on Leopard OSX. I've installed several versions (Classic, PDT, etc). When I install a new plug-in using the Help Install New Software functionality and I restart it, I always get the same error and I cannot anymore use it: !ENTRY org.eclipse.equinox.launcher 4 0 2010-04-20 17:32:42.540 !MESSAGE Exception launching the Eclipse Platform: !STACK java.lang.ClassNotFoundException: org.eclipse.core.runtime.adaptor.EclipseStarter at java.net.URLClassLoader$1.run(URLClassLoader.java:200) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:317) at java.lang.ClassLoader.loadClass(ClassLoader.java:252) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:556) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514) at org.eclipse.equinox.launcher.Main.run(Main.java:1311) What is causing the error? How can I get these plugins to work? Thanks

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• Windows pysical server provisioning question with HPSA 7.8

  - by warren

  I have a physical server that I am trying to provision Windows to. At 58% of the way through copying files form the Core to the target server, the process hangs with either a samba time-out or an error indicating that %path%\system32\ntoskrnl.exe is missing or corrupt. I can build a VM on the same subnet with the same media (merely a different profile to catch the different unattend.txt file) with no issues. I can also provision RHEL5 to this server with no issues. The buildmgr logs indicate that eventually the job is timing-out. Samba logs show that connections are made, and then eventually closed - about the time that the build process times-out. Any ideas on where to look next?

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• Mecer laptop gives me a white screen when I close the screen

  - by Dane Rossenrode

  I'm having a very strange hardware issue with my Mecer m770u laptop with intel i7 quad core, etc... I'm wondering if anyone has had this issue with any other brand/model of laptop, and what I should fix/replace to solve it...? Basically when I close the screen of the laptop, the screen often goes completely white. If I open it slowly and smoothly again, the screen returns to normal. But if I close the screen when the computer is off, and then switch it on, it boots with a white screen, and opening it slowly/smoothly doesn't help. I have to then switch it on and off a few times before it returns to normal. Makes travelling with my laptop really difficult! Any suggestions?

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