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  • drbd block device as storage for kvm virtual machine

    - by facha
    Hi, everyone I've setup a drbd replication between two machines and used a drbd block device as storage for a kvm machine. Everything is running well. However I'm in doubt if this setup is ok to use. From what I've read so far on the internet, people tend to use drbd-ospf-qcow2_file as storage for their virtual machines.

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  • sharepoint list permissions

    - by Alexander Pavluchenko
    please help with following task: i have sharepoint list, all participants see only own records (they are can create, modify and read only own records), i need to give permissions for two users for editing each other records only, and not allow to see other users records. is ir possible to do with Sharepoint?

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  • VMware vCenter Server Standard and Foundation Editions

    - by ToreTrygg
    Wondering whether anyone could advise as to the differences between these two products, from my understanding the difference is the latter allows control of more than 3 hosts. What I really wanted to know was, the (cool) features like chargeback and extended Application monitoring are they included in both versions or am I missing something....

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  • Losing internet connectivity on server after installing LogMeIn Hamachi (with server set as gateway node)

    - by Kim Jong-Un
    Our domain controller (SBS 2003) completely lost internet and network connectivity yesterday after I remotely installed LogMeIn Hamachi on it and set it to be a gateway node- in an attempt to create a VPN link between the server and a remote site. I had to go in to the office to resolve the problem as, unsurprisingly, my own remote access to the server was also lost. I was only able to restore network connectivity by deleting a virtual network adapter Hamachi created when making the server the gateway node (called "Hamachi bridge" I believe), then rebooting the server. This is a repeatable problem. Every time I try to get this to work, it just takes the server offline. Why would this bridge affect regular TCP/IP connectivity on the NIC in this way? I have tried a "hub-and-spoke" configuration between the server and our PC at a remote site (server set as hub, remote site as spoke). This caused no such problems with general internet connectivity, and file transfer worked well between the two computers. However, there was a DNS issue with the VPN between the two sites- resulting in Active Directory not being able to communicate between them (could not log on using domain user accounts at remote site if they were not already cached on that machine). I only tried a "gateway" network as LogMeIn support told me: If you can get the Active Directory to work it would only be through a "Gateway" network type with the server acting as the Gateway Node. You would configure the gateway settings on the server in the Hamachi client on that machine to push whatever IP's/DNS settings you prefer and at that point AD would be able (all things being equal) communicate to the client node when it attaches. We do not have any ActiveDirectory configuration info as that's outside the scope of our support. I hope this helps. It would be fantastic if I could get Active Directory to work over a Hamachi VPN connection, without worrying about the server going offline in this way. Does anyone have any ideas how I should proceed, or any theories as to what is going on when I try to use the "gateway" network type? I want to try to narrow down what is going on here.

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  • decommissioning WINS

    - by longneck
    My network has all 2008R2 domain controllers, but we are running Active Directory in Windows 2003 mode. Two of our domain controllers are configured as WINS servers. I have discovered that our copiers and fax machines are currently configured to use WINS to find their servers, so I'm in the process of configuring them to use DNS instead. How can I find out what else is actively using WINS? What procedure should I follow to decommission WINS from my network?

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  • Why does my computer beep when i type <shift>-DE quickly?

    - by Bedwyr Humphreys
    I'm writing a report on developing EJBs in Jdeveloper and every time i type "IDE" my laptop beeps twice in quick succesion. Actually, whilst typing this I've worked out that any combination of shift plus two adjacent keys, one from the row that starts qwerty and one from the row that starts asdfg will beep. It's really quite annoying. It's a hp laptop. Anyone know how I can make it stop?

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  • Multiple access points for the same SSID ?

    - by krosenvold
    I need to upgrade my existing wireless infrastructure and this time I want 2 access points to cover my house, since I get blind spots no matter what with a single AP, I have physical cabling to my central network available for both access points. But I would really like these two to interoperate seamlessly as a single SSID. How do I do this and what are the features the new AP's I'm buying need to support ? (Product recommendations are welcome ;)

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  • Domain regisration in Godaddy and Hosting in Plesk

    - by Dipen
    Guys, I bought new domain in GOdaddy and host the site in plesk 9.2.2 . How to related these two. While i adding the domain in plesk it automatically added 10 DNS records like A ,CNAME,MX. but in godaddy it shows some name server . What about the next step. need to update A record in Godaddy or Please guide me. Its very urgent request

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  • Determining timeout reason

    - by datatoo
    What is the best way to determine what causes a server timeout on a Plesk passworded directory in IIS6? Even if the default page is static text I can get a timeout. This has worked fine for two years and has only seemed to change after adding a new permitted user. Occasionally there is success but usually loading is very slow. Where would I look for a problem, as it doesn't seem to be page content causing the issue?

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  • Has anyone run an objective comparison of Nessus and Skipfish

    - by jldugger
    We recently set up Nessus, but the annual cost is not cheap. Recently Google published SkipFish which appears to compete in the area of webapps. As best I can tell, Nessus operates via a large database of known exploits. And, as best as I can tell, Skipfish automatically generates vulnerability tests. Has anyone done a comparison of the effectiveness of these two approaches yet?

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  • Adding value of cell X only if cell Y is blank

    - by Graeme Hutchison
    I have a list with three columns A, B, and C. The first two columns are complete (A and B), while the third (C) has many blanked fields. What I want to do is replace all the blank fields in Column C with the same value form cell A in the same row. The List contains over 2000 records, of which 65% have a blank Column C value, so I would like to use a formula/function. Below is an example of what I have and what I want to do (on a much smaller scale)

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  • Remapping Linux serial port device names

    - by davefiddes
    I have a server running Debian Linux which has a built in serial port which is coming up as ttyS0. I have a plug in PCI card with two serial ports that are being registered with Linux as ttyS2 and ttyS3. Unfortunately I am trying to run some software which assumes that ttyS0 and ttyS1 are available. Is it possible to remap the serial port device names (using a udev rule?) such that ttyS0 remains as it is and ttyS2 becomes ttyS1?

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  • mysql master-slave setup with synchronous replication

    - by imaginative
    I have a very trivial mysql master-slave setup going on between two servers. The problem is, replication is asynchronous, and this can cause issues (even on a low latency link), if the master server was to crash after a COMMIT before the replication thread from the slave was able to fetch the last bin log. Is there anyway to force mysql to do synchronous commits so that data consistency is guaranteed in a mysql-slave relationship?

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  • Conditional dev|nfs mount in Linux

    - by o_O Tync
    I have a mount point — let it be /media/question — and two possible devices: a physical HDD and a remote NFS folder. Sometimes I plug the device in physically, in other cases I mount it via NFS. Is there a way to specify both of them in fstab so that executing mount /media/question will preferably choose physical volume, and when it's not available — NFS?

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  • Where are the TweetDeck settings-files located in (ubuntu-) linux?

    - by Philipp Andre
    Hi Everybody, i'm running Windows as well as Ubuntu and like to sync both tweetdeck installations via dropbox. Therefore i need to locate two files: td_26_[username].db preferences_[username].xml I found them on windows under the folder c:\Users[account]\AppData\Roaming\TweetDeckFast.[random string]\Local Store\ But i can't find them on my ubuntu installation. Does anyone know where these files are located? Best Regards Philipp

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  • How do I optimize TCP stack for HTTP server?

    - by jcisio
    I have a HTTP server that serves only two kinds of page: about 10 KB and about 16 KB (both compressed, other files are from CDN). As the latency is quite high (ping takes more than 300 ms), I want to optimize the TCP stack so that client receives the whole page ASAP. Thus, I have a double question: Which parameter do I have to change (which value of TCP window)? How to change in (a Debian box, and FYI, there is a Varnish before the HTTP server).

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  • Areca 1280ml RAID6 volume set failed

    - by Richard
    Today we hit some kind of worst case scenario and are open to any kind of good ideas. Here is our problem: We are using several dedicated storage servers to host our virtual machines. Before I continue, here are the specs: Dedicated Server Machine Areca 1280ml RAID controller, Firmware 1.49 12x Samsung 1TB HDDs We configured one RAID6-set with 10 discs that contains one logical volume. We have two hot spares in the system. Today one HDD failed. This happens from time to time, so we replaced it. Upon rebuilding a second disc failed. Normally this is no fun. We stopped heavy IO-operations to ensure a stable RAID rebuild. Sadly the hot-spare disc failed while rebuilding and the whole thing stopped. Now we have the following situation: The controller says that the raid set is rebuilding The controller says that the volume failed It is a RAID 6 system and two discs failed, so the data has to be intact, but we cannot bring the volume online again to access the data. While searching we found the following leads. I don't know whether they are good or bad: Mirroring all the discs to a second set of drives. So we would have the possibility to try different things without loosing more than we already have. Trying to rebuild the array in R-Studio. But we have no real experience with the software. Pulling all drives, rebooting the system, changing into the areca controller bios, reinserting the HDDs one-by-one. Some people are saying that the brought the system online by this. Some are saying that the effect is zero. Some say, that they blew the whole thing. Using undocumented areca commands like "rescue" or "LeVel2ReScUe". Contacting a computer forensics service. But whoa... primary estimates by phone exceeded 20.000€. That's why we would kindly ask for help. Maybe we are missing the obvious? And yes of course, we have backups. But some systems lost one week of data, thats why we'd like to get the system up and running again. Any help, suggestions and questions are more than welcome.

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  • Virtual Server 2005 VSS writer missing

    - by Jon S.
    I have two servers running Virtual server 2005 R2 SP1. I'm using Symantec Backup Exec 10d for backups. One server runs the backups fine but the other will cause the vm's to crash when it tries to backup. I think the problem is because the "Microsoft Vitual Server 2005 Writer" is not showing up when I run "vssadmin list writers". Can I install the writer without reinstalling VS 2005?

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  • user SID unique?

    - by Xaver
    the SID term is unique or not? can two user sids on different machines in one domain system be equal? (if both of them domain users or if both of them locally users)

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  • ESX3.5 Cluster & MD3000i -- Both servers see iSCSI Targets, Only one server can use partition.

    - by GruffTech
    Alright. First and foremost, Warning. This is a bigger-then-normal question. I like to be thorough and try to eliminate all possible "easymode" answers, as well as give everyone a feel of what i've tried. I've included several images of our setup and the problem it is having.. TLDR Version: So I've followed the guides located here: ESX Deployment Guide V1 this is the guide Dell has sent me to setup two ESX3.5 servers mounting a Dell MD3000i. It doesn't work. Both servers can't use the same storage partition on the MD3000. Both servers see it, but only one server can actually use it. (that server being whatever server created the partition on the target.) Both ESX servers are members of the Host Group. Full Version I have 2 ESX3.5 Servers (10.0.7.102, also called EPI2, and 10.0.7.103, also called EPI3.) connected to a iSCSI SAN Device (Dell MD3000i). Both ESX servers can "scan" the SAN and see the LUNS. Part One: MD3000i Storage On the MD3000i, Both servers are in my host group. I have two partitions, VM1 and VM2, both 1.6TB (vmware doesn't like anything past 2tb.) And you can even see that the ESX servers are targetting the MD3000 just fine. Part Two: The ESX Servers Figure 1. So as you can see above, Both ESX Servers (10.0.7.102 and 10.0.7.103) are able to see and scan the MD3000i SAN. Figure 2. Above is the storage both servers see. I created the storage partition on EPI2 (102). I then Extended the partition to include the second LUN for a grand total of 3.27 TB of storage. When i "rescan" on 103 (the server not mounting the partition), I get the below log in log/messages. Mar 11 10:41:18 epi3 kernel: scsi1: remove-single-device 0 0 0 failed, device busy(4). being the only line that grabs my attentions. (EPI3 is the server name) Mar 11 10:41:04 epi3 vmkiscsid[5436]: Connected to Discovery Address 192.168.130.101 Mar 11 10:41:04 epi3 vmkiscsid[5437]: Connected to Discovery Address 192.168.130.102 Mar 11 10:41:04 epi3 vmkiscsid[5438]: Connected to Discovery Address 192.168.131.101 Mar 11 10:41:04 epi3 vmkiscsid[5439]: Connected to Discovery Address 192.168.131.102 Mar 11 10:41:17 epi3 kernel: scsi singledevice 2 0 0 0 Mar 11 10:41:17 epi3 kernel: Vendor: DELL Model: MD3000i Rev: 0735 Mar 11 10:41:17 epi3 kernel: Type: Direct-Access ANSI SCSI revision: 05 Mar 11 10:41:17 epi3 kernel: VMWARE SCSI Id: Supported VPD pages for sdb : 0x0 0x80 0x83 0x85 0x86 0x87 0xc0 0xc1 0xc2 0xc3 0xc4 0xc8 0xc9 0xca 0xd0 Mar 11 10:41:17 epi3 kernel: VMWARE SCSI Id: Device id info for sdb: 0x1 0x3 0x0 0x10 0x60 0x1 0xe4 0xf0 0x0 0x1a 0x1a 0xa2 0x0 0x0 0x15 0xe2 0x4d 0x75 0xf6 0x99 0x53 0x98 0x0 0x54 0x69 0x71 0x6e 0x2e 0x31 0x39 0x38 0x34 0x2d 0x30 0x35 0x2e 0x63 0x6f 0x6d 0x2e 0x64 0x65 0x6c 0x6c 0x3a 0x70 0x6f 0x77 0x65 0x72 0x76 0x61 0x75 0x6c 0x74 0x2e 0x36 0x30 0x30 0x31 0x65 0x34 0x66 0x30 0x30 0x30 0x31 0x61 0x31 0x61 0x61 0x32 0x30 0x30 0x30 0x30 0x30 0x30 0x30 0x30 0x34 0x37 0x39 0x30 0x36 0x32 0x32 0x65 0x2c 0x74 0x2c 0x30 0x78 0x30 0x30 0x30 0x31 0x30 0x30 0x30 0x30 0x30 0x30 0x30 0x32 0x0 0x0 0x0 0x51 0x94 0x0 0x4 0x0 0x0 0x80 0x1 0x53 0xa8 0x0 0x44 0x69 0x71 0x6e 0x2e 0x31 0x39 0x38 0x34 0x2d 0x30 0x35 0x2e 0x63 0x6f 0x6d 0x2e 0x64 0x65 0x6c 0x6c 0x3a 0x70 0x6f 0x77 0x65 0x72 0x76 0x61 0x75 0x6c 0x74 0x2e 0x36 0x30 0x30 0x31 0x65 0x34 0x66 0x30 0x30 0x30 0x31 0x61 0x31 0x61 0x61 0x32 0x30 0x30 0x30 0x30 0x30 0x30 0x30 0x30 0x34 0x37 0x39 0x30 0x36 0x32 0x32 0x65 0x0 0x0 0x0 0x0 Mar 11 10:41:17 epi3 kernel: VMWARE SCSI Id: Id for sdb 0x60 0x01 0xe4 0xf0 0x00 0x1a 0x1a 0xa2 0x00 0x00 0x15 0xe2 0x4d 0x75 0xf6 0x99 0x4d 0x44 0x33 0x30 0x30 0x30 Mar 11 10:41:17 epi3 kernel: VMWARE: Unique Device attached as scsi disk sdb at scsi2, channel 0, id 0, lun 0 Mar 11 10:41:17 epi3 kernel: Attached scsi disk sdb at scsi2, channel 0, id 0, lun 0 Mar 11 10:41:17 epi3 kernel: scan_scsis starting finish Mar 11 10:41:17 epi3 kernel: SCSI device sdb: 3509329920 512-byte hdwr sectors (1797751 MB) Mar 11 10:41:17 epi3 kernel: sdb: sdb1 Mar 11 10:41:17 epi3 kernel: scan_scsis done with finish Mar 11 10:41:17 epi3 kernel: scsi singledevice 2 0 0 1 Mar 11 10:41:17 epi3 kernel: Vendor: DELL Model: MD3000i Rev: 0735 Mar 11 10:41:17 epi3 kernel: Type: Direct-Access ANSI SCSI revision: 05 Mar 11 10:41:18 epi3 kernel: VMWARE SCSI Id: Supported VPD pages for sdc : 0x0 0x80 0x83 0x85 0x86 0x87 0xc0 0xc1 0xc2 0xc3 0xc4 0xc8 0xc9 0xca 0xd0 Mar 11 10:41:18 epi3 kernel: VMWARE SCSI Id: Device id info for sdc: 0x1 0x3 0x0 0x10 0x60 0x1 0xe4 0xf0 0x0 0x1a 0x1a 0x86 0x0 0x0 0xd 0xb7 0x4d 0x75 0xf2 0x77 0x53 0x98 0x0 0x54 0x69 0x71 0x6e 0x2e 0x31 0x39 0x38 0x34 0x2d 0x30 0x35 0x2e 0x63 0x6f 0x6d 0x2e 0x64 0x65 0x6c 0x6c 0x3a 0x70 0x6f 0x77 0x65 0x72 0x76 0x61 0x75 0x6c 0x74 0x2e 0x36 0x30 0x30 0x31 0x65 0x34 0x66 0x30 0x30 0x30 0x31 0x61 0x31 0x61 0x61 0x32 0x30 0x30 0x30 0x30 0x30 0x30 0x30 0x30 0x34 0x37 0x39 0x30 0x36 0x32 0x32 0x65 0x2c 0x74 0x2c 0x30 0x78 0x30 0x30 0x30 0x31 0x30 0x30 0x30 0x30 0x30 0x30 0x30 0x32 0x0 0x0 0x0 0x51 0x94 0x0 0x4 0x0 0x0 0x80 0x1 0x53 0xa8 0x0 0x44 0x69 0x71 0x6e 0x2e 0x31 0x39 0x38 0x34 0x2d 0x30 0x35 0x2e 0x63 0x6f 0x6d 0x2e 0x64 0x65 0x6c 0x6c 0x3a 0x70 0x6f 0x77 0x65 0x72 0x76 0x61 0x75 0x6c 0x74 0x2e 0x36 0x30 0x30 0x31 0x65 0x34 0x66 0x30 0x30 0x30 0x31 0x61 0x31 0x61 0x61 0x32 0x30 0x30 0x30 0x30 0x30 0x30 0x30 0x30 0x34 0x37 0x39 0x30 0x36 0x32 0x32 0x65 0x0 0x0 0x0 0x0 Mar 11 10:41:18 epi3 kernel: VMWARE SCSI Id: Id for sdc 0x60 0x01 0xe4 0xf0 0x00 0x1a 0x1a 0x86 0x00 0x00 0x0d 0xb7 0x4d 0x75 0xf2 0x77 0x4d 0x44 0x33 0x30 0x30 0x30 Mar 11 10:41:18 epi3 kernel: VMWARE: Unique Device attached as scsi disk sdc at scsi2, channel 0, id 0, lun 1 Mar 11 10:41:18 epi3 kernel: Attached scsi disk sdc at scsi2, channel 0, id 0, lun 1 Mar 11 10:41:18 epi3 kernel: scan_scsis starting finish Mar 11 10:41:18 epi3 kernel: SCSI device sdc: 3509329920 512-byte hdwr sectors (1797751 MB) Mar 11 10:41:18 epi3 kernel: sdc: sdc1 Mar 11 10:41:18 epi3 kernel: scan_scsis done with finish Mar 11 10:41:18 epi3 kernel: scsi1: remove-single-device 0 0 0 failed, device busy(4). Mar 11 10:41:18 epi3 kernel: scsi singledevice 1 0 0 0 Things I've Tried: Removing iSCSI targets from only 103, disabling iSCSI, rebooting, enabled iSCSI, re-adding targets, rescan. Same result. Removing partition on 102, Formatted partition on 103 instead. Same result, except flipped. 103 can use storage, 102 can not. Starting Over. Removing all iSCSI Targets on both ESX Boxes, disabling iSCSI, turning off the firewall for iSCSI, rebooting ESX. Then on the MD3000, Removed the Host Group, Removed the Host-to-Virtual Mappings, Restarted the SAN. Followed the Documentation again, same result. Both servers see the storage, but only one server can use it. Disabling and Re-enabling VMware DRS and HA. Same result. Flat-out turning off VMware DRS and HA, and doing the "start over" step to see if maybe that borked it. Same Result. I'm kinda loosing my mind here, Everything i read online says "just partition it and if the ESX boxes can see the targets, it just works".... well crap. Any ideas, any other things to try? Can anyone atleast point me in the right direction? I'm really tired of working from 1am til 4am (our maintenance hours)

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  • Where to get laptop replacement parts?

    - by wai
    I am sure some of us have older laptops that still works but just one or two parts started not working very well. However, to send it back to the manufacturer for repair might not be worth the money (as some of them even charge consultation fees just to have it checked) as these old laptops are most probably well beyond warranty. Replacing these one or two parts could give your laptop a new lease of life. For example, I have a Dell Inspiron 640m which the fan recently failed. Everything else still works. I know enough to open up the laptop (after reading the service manual) and put it back together again, hence a replacement fan could save it. However, finding these parts turned out to be difficult. I guess I wouldn't be able to get it from Dell since I have been searching around the Dell forums and concluded if I were going to get Dell to at least talk to me, I would have to pay some money (since my warranty expired). I found this online:- http://www.parts-people.com/index.php?action=item&id=3725 However, as I don't live in the United States, shipping alone would cost me 3 times more than the part in question. In addition, if there's a problem, it would be difficult because I probably would have to mail the parts back (costing more money). One of my friend spilled water on her Macbook, she sent it back to Apple and they told her the cost of repairing it exceeds that of buying a new Macbook. They probably have to change everything except the LCD screen. I opened it up and found that most of the parts are still working, only the RAM had fried. Replaced it and it's working again. For some time before discovering only the RAM fried, I was toying with the idea of replacing the logic board myself but looks like I didn't have to. =) Now I know there's a site for Macbooks used replacement parts:- http://www.ifixit.com/ The question is, does anyone know where to get replacement parts at their own locality? It might benefit the community as a whole. Someone might know a local computer store that sells precisely just the things we needed (for now, I hope to find a shop that sells just the fan). If you own a laptop which you had an easy experience finding the replacement parts, do post that as well. PS: I wish laptop manufacturers have outlets where they sell these replacement parts (or at least let you place an order).

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