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• How to make sure you server NIC performance is at best on Windows?

  - by Bobb

  I realised that I followed some obscure paper on setting NICs on Windows for too long. It might be outdated with new hardware released in past couple of years and with W2008R2. I read a bit about offloading and RSS settings on Windows and I realiased that it is very much circumstantial. Noone can really say - enable that and disable this. etc. So what I really want is for my next server try and setup testing environment and measure how my particular application will behave with different settings. The target is going to be latency of TCP primarily. Please note I am talking about latency inside the box. Are there precision tools for Windows to measure latency (down to microseconds)? P.S. I know this is not easy question. Windows time drift is awful problem for any precision test but still I am sure I am not the fist person to need that... Please share your experience

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• When RDP as a Domain User, Smart Card Requested

  - by Paul

  My W8 machine is connected to domain zen. If I rdp to the W8 machine, I can log in as a local user without problems. If I try to log in as a domain user, I am prompted for a smart card instead of a password. Any ideas why? Note that Interactive login: require smart card is disabled in group policy: And here is the output from rsop.msc: Some additional information on this one. If my connecting machine is on the same domain/network as the W8 machine, then I am prompted for a password as usual. If the machine is remote, on a different domain, then I am prompted for a smart card. In addition, the machine I am connecting from that gets the smartcard prompt is an XP box. I haven't isolated exactly which of these factors triggers the different response.

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• Can a Linux system crash cause network issues?

  - by Supratik

  I have a Ubuntu box in my network which crashed, all the system connected to the switch in which the Ubuntu system was connected started giving problem. I removed that system from the network, since that was the last change I made in my network and everything was fine. So, to confirm this I again connected the system back to the network and the same network outage happened. When I checked the links it was fine. When I rebooted the problematic system and again connected back to the network switch everything started working. I think possibly the crash of the Ubuntu system could have caused this outage. Is there any possibility that a kernel crash can cause network issues?

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• cpu usage nearly 100 constantly windows xp sp3

  - by user23954

  When running some heavy applications like games or virtual box for some time.. the cpu usage is normal for some 15 mins and then suddently cpu usage increases. even after i quit the heavy apps and when i start some other apps, the cpu usage of the new opened application is also very high.. this continues until i reboot the system. There is single particular process occupy more cpu. All the processes cpu usage is little high than normal.. Any solutions?

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• Finding Locked Out Users

  - by Bart Silverstrim

  Active Directory up to 2008 network (our servers are a mix of 2008, 2003...) I'm looking for a quick way to query AD to find out what users are locked out, preferably from a batch or script file, to monitor for possible issues with either user accounts being attacked by an automated attack or just anomalies in the network. I've Googled and my Google-fu has failed; I found a query off Microsoft's own knowledgebase that cites a string to use on Server 2003 with the management snap-in's saved queries (http://support.microsoft.com/kb/555131) but when I entered it, the query returned 400 users that a spot-check showed did NOT have a checkmark in the "Account is locked out" box under "account." In fact, I don't see anything wrong with their accounts. Is there a simple utility (wisesoft bulkadusers apparently uses this method behind the scenes, since it's results were also wrong) that will give a count of users and possibly their user object names? Script? Something?

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• SQLIO help decipher output

  - by SQL Learner

  When load testing on a SQL Server Box, using following (testfile is 25 GB) sqlio -kW -t8 -s360 -o8 -frandom -b8 -BH -LS g:\testfile.dat > result.txt sqlio -kW -t8 -s360 -o8 -frandom -b64 -BH -LS g:\testfile.dat >> result.txt sqlio -kW -t8 -s360 -o8 -frandom -b128 -BH -LS g:\testfile.dat >> result.txt sqlio -kW -t8 -s360 -o8 -frandom -b256 -BH -LS g:\testfile.dat >> result.txt Can anyone help me decipher output.. I do not understand latency min and average....? What does this number means IOs/sec: 10968.80 MBs/sec: 685.55 latency metrics: Min_Latency(ms): 1 Avg_Latency(ms): 5 Max_Latency(ms): 21

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• Xen DomU does not have network connectivity

  - by Prakashkumar Thiagarajan

  I am trying to install Xen on my Fedora box. Dom0 image has network connectivity. But when I try to create a DomU, it does not have network connectivity. I want to be able to run in bridged mode. I have the /etc/xend/xend-config.sxp file accordingly. My config file looks like kernel = "/boot/vmlinuz-2.6.18-xenU" memory = 64 name = "clientA" vif = ['bridge=xenbr0,mac=12.34.56.78.9A.BC'] root = "/dev/sda1 ro" ramdisk = "/boot/initrd-linux.img" extra = "ro selinux=0.3 initcall_debug" features = 'auto_translated_physmap' Am I missing something ?

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• How do I configure hardware raid in a Poweredge 2850?

  - by Eric Fossum

  I just bought a Dell Poweredge 2850 from Craigslist and for the most part I'm happy with it's $300 price-tag, but I cannot figure out where to configure the embedded hardware raid... I've seen online you should hit <CTRL-M>, but while booting my box never says that. I have <CTRL-A> (I think) for an LSI Logic config, but that seems to just program SCSI and verify drives on my SCSI-A and SCSI-B. Anyone have a clue where this RAID config is?

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• Private VOIP network

  - by SuppositoryPlacebo

  I own a small private security services business. Some of my clients require 2-10 security officers per location. I'm trying to think outside the box in order to solve my communications problem. I'd rather not buy or lease hf radios or voip systems at the current rates. I'm wondering if there is an existing system, or if is at all possible, to setup a private communications network using only a server and bluetooth devices or a wifi/bluethooth combination. http://25.media.tumblr.com/tumblr_m44f0pn7BL1rwp6tgo1_1280.png I don't need "radio" per se. I just need a simple, private voip network. Is there an existing device that consists of nothing more than a wifi adapter to control a bluetooth device?

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• Deploying Sharepoint Features in a Load Balanced Environment

  - by Adam

  Last night we deployed a new set of Sharepoint features to a load balanced environment. For some reason the new features are on 1 box but are not showing in the sharepoint sites on the others. We have 4 servers and we deployed to them by pulling 1 server out of rotation, stopping the app pool and deploying our new code and the new features. Then we would fire it back up and add it to the rotation. For the remaining servers we would only remove the server from rotation, stop the app pool, and deploy the code, NOT the features, then fire it back up and add it to the rotation. Any thoughts on why the features are not showing up on the other servers? Also, any thoughts on forcing the features to show up? Thanks in advance.

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• Where can I get a splitter to connect a device with a single 3.5 mm plug into the audio input/output jacks on my laptop?

  - by XinJeisan

  I recently bought the :Hype Retro Handset for Mobile Phone" -- its just a device that looks like a handset to use when chatting on a computer or mobile phone that plugs into the phone/computer with a single 3.5 mm plug. I was hoping to use it on my windows 7 Toshiba laptop. I can hear audio fine through the handset but what I'm saying is not being picked up on the handset. On the box it says "some phones and computers may need additional adapters," so I'm hoping it is possible to get a splitter or something for this to work properly. I did email the parent company (http://dglusa.com/) but I haven't heard from them, and, looking over their website, I doubt I will. I also went to the local radio shack, and the guy said I needed a splitter, but he didn't know where to get one. I can find the kind of splitter I think I need online, but I'm unsure whether they are just for output or can also do input/output.

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• Ping6 fail on linux

  - by michelemarcon

  I have 2 linux box configured with IPv4. I have tried adding IPv6 to them. I have issued this commands on box1: ip -6 addr add fd32:2d7f:f3c1::1/48 dev eth0 And I get this: inet6 addr: fd32:2d7f:f3c1::1/48 Scope:Global Then I have issued this command on box2: ip -6 addr add fd32:2d7f:f3c2::1/48 dev eth0 Back on box1 (command/response): ping6 fd32:2d7f:f3c1::1 is alive! ping6 fd32:2d7f:f3c2::1 ping6: sendto: Network is unreachable Why doesn't box1 ping box2 (of course, also box2 can't ping box1)?

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• Server 2008 SP1 VSS Writers Not Responding

  - by Jason

  I've got a Windows Server 08 box on SP1 that is having some problems. We've experienced backup problems and I've traced it down to VSS Writers not responding. From the command line, if I type vssadmin list providers, I get Provider name: 'Microsoft Software Shadow Copy provider 1.0' Provider type: System Provider Id: {b5946137-7b9f-4925-af80-51abd60b20d5} Version: 1.0.0.7 If I type vssadmin list writers, I get this vssadmin 1.1 - Volume Shadow Copy Service administrative command-line tool (C) Copyright 2001-2005 Microsoft Corp. Waiting for responses. These may be delayed if a shadow copy is being prepared. I could wait this out for hours and it won't move. I looked up how Server 2008 handles VSS writers, and you can't reregister them like you could in Server 2003 http://social.technet.microsoft.com/Forums/en/windowsserver2008r2general/thread/062cc52c-899b-45f3-8d0c-798b92363f41 Does anyone know how to fix something like this or where to turn next?

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• How to partition a 1 TB drive for performance on a windows development machine?

  - by dip

  I saw a similar question for linux, but nothing for windows. I'm getting a new 1TB drive for my dev box @ work. The OS will be Windows 7 Pro with 8GB of RAM and just the single 1TB drive. Backups are not a concern, and I won't be storing large multimedia files. I want the fastest possible performance for general windows usage and for compilation. I will defrag nightly with a smart defragger liker perfectdisk. Should I just go with a single partition, or is there some way I can lay things out for the best performance?

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• Spam is Killing Me - Can I use GMail as a spam filter?

  - by kirkouimet

  I'm getting at least 50 Viagra ads a day and it's driving me insane. I currently have a hosted MS Exchange account and a Gmail account. My Gmail account forwards to my Exchange account. Both of my addresses are used evenly, and it has been really nice to have all of my e-mail end up in my Exchange box. I like replying from one address consistently, which is my Exchange address. Spam sent to my Gmail address is always caught, where spam sent to my Exchange is getting passed straight through to me. I don't want to have two spam filtration systems that have quarantines that I need to check frequently for false positives. Here is my question: Can I setup my MX records such that all e-mail sent to my Exchange address is forwarded to my Gmail account, which will then forward it to my Exchange account? Kind of like using Gmail as the middle man.

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• How to fix missing icons in the taskbar and start menu?

  - by adrianbanks

  I installed Visual Studio 2012 yesterday and during the install my path somehow got screwed up1. Since then, the icons for applications that are part of Windows are the default "unknown" icon, but other icons are fine. The applications that the shortcuts link to launch fine when the icons are clicked on. Taskbar: Start Menu: I have fixed my path, but the icons still show incorrectly. Any ideas on how to flush what appears to be a set of cached icons? 1 Something took a path of A;B;C;D; and turned it into A;B;C;D;A;B;C;D;E;F; - duplicating a large part of it to that point that no more characters were available to type in the edit box in system properties. This had the side-effect of Windows reporting that it couldn't find %windir%.

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• need help in backing up 2 partitions to flash drive(Acronis)

  - by Nrew

  I'm trying it on virtual box and installed Acronis 2010. The backup was successful but when I checked on the backup which is on my flash drive. Here's my problem: Ive installed firefox before the backup, but the program files folder in the flash drive has no folder called firefox. How do I restore the the 2 partitions using the backup. What I did was to: Go to tools & utilities in Acronis then chose clone disk. Selected the source and destination(flash drive). Then I restart, the backup began. First with the first partition which has xp installed and the 2nd was vista lite. What do I do to restore it: I only got these folders on the root of the flash drive: Documents and settings Program files Windows BOOTSECT.BAK

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• Adding a new automatic number sequence

  - by Paul

  We write test case documents. In these documents, each test case is numbered. E.g. Foobar-UI-1 to Foobar-UI-23 or Foobar-Device-1 to Foobar-Device-87 I'd like to autonumber these. I don't think I want just a new numbered list format, I want something like the list of figures - where figures (or test case) can be defined anywhere in the doc with other headings and paragraphs between them, and I can insert a "List of figures" table at the beginning. So how do I do "test cases" and a "list of test-cases" table in the same way as figures work out of the box?

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• Is it safe to change the time on hosting VM server?

  - by hydroparadise

  So, I noticed there's about a 10 minute drift on my VM hosting server from what time it's supposed to be. In traditional environments, I would just restart the system (and change the BIOS time if necassary). The hosting server is Ubuntu 12.04. Undertsanding that some process could be time sensitive (NTP?), I was wondering how this might affect the relation between the host and hosted system (currently hosting 4: 3 Ubuntu 12.04 servers with one being a web server, and 1 Windows Server 2008 file server). I am using Virtual Box 4 with it's headless option. Ultimately, I am trying to avoid from shutting down the host (which ultimately mean shutthing down the other hosted systems). Is this safe?

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• Cached css/javascript files on Sun Java System Web Server

  - by Derp

  I'm doing front-end web development in a Solaris 10 / Sun Java System Web Server 7.0U2 environment. I have noticed that changes to static css or javascript files often do not take effect immediately, whereas changes to static html files always do. My best guess is that a default setting in the web server causes it to cache certain file types in order to provide reasonable performance out of the box. I don't have the admin server running--I'll need to edit the config files by hand. What change(s) can I make so that all of my css and javascript edits take effect immediately? Thanks!

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• How to disable Empty Recycle Bin confirmation dialog?

  - by kjo

  In Windows 7 (at least) when one chooses Empty Recycle Bin from the RB menu, one gets prompted with a dialog like: Are you sure you want to permanently delete these 11 items? (modulo the actual number of items mentioned). Is there a way to disable this dialog (without disabling the use of the RB altogether)? NOTE 1: This dialog comes up even if one has unchecked the box labeled "Display delete confirmation dialog" in the RB Properties dialog (as long as the RB has not been disabled). NOTE 2: As alluded to above, any answer that entails disabling the use of the Recycle Bin altogether is explicitly ruled out. This includes any answer that involves selecting the button labeled "Don't move files to the Recycle Bin. Remove files immediately when deleted." in the RB Preferences window. NOTE 3: This question has nothing to do with Outlook Express.

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• What could cause a file system to spontaneously unmount or become invalid for a short time?

  - by Ichorus

  We've got DB2 LUW running on a RHEL box. We had a crash of DB2 and IBM came back and said that a file that DB2 was trying to access (through open64()) unmounted or became invalid. We have done nothing but restart the database and things seem to be running fine. Also, the file in question looks perfectly normal now: $ cd /db/log/TEAMS/tmsinst/NODE0000/TEAMS/T0000000/ $ ls -l total 557604 -rw------- 1 tmsinst tmsinst 570425344 Jan 14 10:24 C0000000.CAT $ file C0000000.CAT C0000000.CAT: data $ lsattr C0000000.CAT ------------- C0000000.CAT $ ls -l total 557604 -rw------- 1 tmsinst tmsinst 570425344 Jan 14 10:24 C0000000.CAT With those facts in hand (please correct me if I am mis-interpreting the data at hand) what could cause a file system to 'spontaneously unmount or become invalid for a short time'? What should my next step be? This is on Dell hardware and we ran their diagnostic tools against the hardware and it came back clean.

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• Any way to release focus on a KVM guest in virt-manager without having to click Ctrl_L + Alt_L?

  - by slm

  Is there a way to move my mouse in and out of a KVM guest in virt-manager without having to click to gain focus of the window and release focus by pressing Ctrl_L + Alt_L? EDIT #1 The guest VM is Win2008R2. I've tried this on a CentOS 5, 6, and Fedora 14 box running various versions of virt-manager and KVM and they all exhibit this behavior. EDIT #2 I just tried the solution recommended by @tpow and that appears to be the issue. Manually adding a tablet input device resolves the problem and I can now move the mouse in and out of the KVM guest without having to gain focus first.

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• Exchange 2007 - Distribution group not work correctly

  - by AlexB

  I have simple server Windows 2008 Standart SP2 with Exchange 2007 with apply SP1. Only one DC and one Exchange server (not exist Edge) in the same server. I have first distribution group by name "[email protected]" with 10 users. Working with internal and external mail correctly. I have second distribution group by name "[email protected]" with 3 users. Working with internal mail correctly, but external mail delivery failed 2 from 3 users. Only 1 users proclaims that external mail delivered correctly. Those 3 users they are too member of distribution group [email protected]" . I am not found in the eventlog any problem with Exchange server. Any user and any distribution group not check the box "Require that all senders are authenticated." Any ideas on how to solve the problem?

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• Hyper V cluster - one VM won't migrate

  - by Chris W

  We have a Failover Cluster built up on 6 blades, each running Hyper V. Each box is running Server 2008 R2. We've got a number of VMs running that all have the same basic config: VHD stored on a cluster shared volume. 2 virtual NICs (1 for LAN connection and 1 for SAN connection). All of our VMs will happily migrate between any other blade apart from one single VM which is running fine on it's current blade but will not migrate to any other location. What could be the cause of it or where should I look to get a detailed error message as I can't seem to find much information logged in any of the logs. Edit: I know the usual culprit is mis-matching resource names. We've already been there with the NICs named differently on some of the blades. As far as we can tell now everything looks to be identical on each bit of metal.

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