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• Can you use a USB dongle inside a VMWare ESX Virual Machine?

  - by Keith Sirmons

  Howdy, I need to know if a USB dongle that is required as a license key for a piece of software will accessible from the physical host machine. This will be a small vSphere 4 installation targeting the quick backup and system restore capabilities of VMWare, not specifically HA, so I am not to worried about the virtual machine automatically failing over to another physical machine and the dongle not being accessible. Does ESX have the capability to map a physical USB port or device to a specific Virtual Machine? I believe this is the dongle: Sentinal Superpro USB Dongle by Rainbow Technologies Thank you, Keith

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• zram trimming by writing zero pages

  - by qdot

  I'm using ZRAM as a backing block device for /tmp filesystem in the following manner: echo 8000000000 > /sys/block/zram0/disksize mkfs.ext4 -O dir_nlink,extent,extra_isize,flex_bg,^has_journal,uninit_bg -m0 \ -b 4096 -L "zram0" /dev/zram0 mount -o barrier=0,commit=240,noatime,nodev,nosuid /dev/zram0 /tmp chmod aogu+rwx /tmp It works out reasonably well for me - however, there is an issue here - when files are removed, they are not zero'ed, so the ZRAM does not remote the compressed pages. Obviously running dd if=/dev/zero of=/tmp/ZERO bs=1M count={free-space-some-rest}; rm /tmp/ZERO clears it up in the ZRAM - it gets notified of zero-pages and shrinks the store. How can I get ext4 to zero used pages on delete? Also, any other suggestions on how to optimize it?

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• Allowing Remote Connection in IIS on Windows 7

  - by GiddyUpHorsey

  I'm trying to give access to a website in IIS on my Win 7 machine to another person on my network. He's unable to access it. I was wondering if perhaps it was because IIS isn't configured to allow remote connections (I seem to remember having to do this sort of thing on Win XP). I've hunted around in IIS and googled but am not finding a way to configure remote connections on Win 7. Some of the answers I've found seem to refer to Win Server 2008 and talk about a management service in IIS Manager, but it doesn't appear to be present on my machine.

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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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• Flexible virtualization infrastructure Design with libvirt

  - by Lessfoe

  I'm going to install a CentOS6 Server with Virtualization ( libvirtd ) capabilities on a DELL Server with Hardware RAID5 of around 6T of disk space ( It has 4x2T disks in a PERC700 RAID Controller ). I'm going then to install some guests which requires few resources except one that needs 500GB of disk space, 8/16GB of RAM and good performances. I was thinking about file images for guests storage but I'm not sure about the 500GB VM what needs good performances so that an LVM device could be better. So my question is what would be the best layout concerning: RAID setup ( RAID5, RAID1 + 1 disk for OS only. ) disk partitioning ( using the entire disk/ leave free space for future use and extending it with LVM ) guests storage management ( LVM devices or file images ( considering the 500GB VM that is performance demanding ) or mixed ) Where to put guests storage? /var/lib/libvirt/images or maybe in a custom dir separated from system /home/VMs Thanks in advance for any hint.

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• How to run UNetBootin (or similar) on Linux?

  - by zharvey

  I am trying to install UNetbootin on my Linux Mint (12 - KDE) machine and it will not run. I downloaded the Linux version of it (downloads as a unetbootin-linux-581 file) and set its permission to chmod +x unetbootin-linux-581. I've tried running it every way I can think of: Double-clicking it from the dolphin file manager Running ./unetbootin-linux-581 Running sh ./unetbootin-linux-581 Running unetbootin-linux-581.sh Nothing seems to be working. So I downloaded it on my Linux Ubuntu (12.04) machine, in case UNetbootin doesn't run on Mint for some reason, and am getting the same results. How do I run it, or what do I need to do to be able to run it?!? Thanks in advance!

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• What causes random clicking/navigation sound while PC is idle?

  - by Jim Linny

  On my Dell D630 laptop running Windows XP Pro SP3, I randomly hear the "Windows Navigation Start.wav" played. This happens even if the only application active on the PC at the time is Microsoft Outlook and no one is touching the keyboard or touchpad. The start navigation sound IS enabled for Internet Explorer (I have IE 7 installed), but it is not running (no window open, anyway). The clicks are rapid, as if being executed automatically by a script or process, and they always come in threes: "click-click, click". I don't see any changes on the display and I don't know how to figure out what's running that could cause this. I have tried to leave Windows Task Manager open in the hope that I'll see a process name jump to the top of the list briefly, but it doesn't happen that often and I guess I'm not quick enough. The PC is slower than I think it should be, but System Idle Process is at 96 - 99 during the event, and for most of the time when I'm not actually using the machine. Any ideas?

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• Wake network adapter from deep sleep mode

  - by BeatMe

  I recently buyed a new Mainboard (Asrock ALiveXFire) and got some trouble with the network adapter. After switching my Windows 7 x64 in energey saving mode and returning from it, my network adapter couldn't be found. After some googling I found out, that apparently my network adapter has been put in a deep sleep mode and didn't reactivate. Their solution was to switch the PC off, take out the RAM and the CMOS battery for some time. After that, the adapter should be powered on again, but that didn't happen for me. I waited several hours before turning my PC on again, but that didn't help. Formatting and reinstalling didn't help either. The network adapter is not found in the hardware manager and reinstalling the drivers didn't help. I have the newest BIOS installed on the mainboard. I literally don't know what to try next. I'm thinking of returning my board, but I would like to avoid the hassle.

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• How to disable "Automatically search for drivers and install" in Windows 7

  - by raegadfsgfsdg

  I connected my TI-89 to my Windows 7 system, and apparently it is not plug-and-play. There was a link to a Windows configuration setting made available that gave the option to automatically search their windows site for drivers and automatically install them each time i connect an unrecognized device. Well, I selected that link with the intention of it being temporary and just that one time. That didnt work and the location/install of a driver was not successful. How can I reset that setting to not automatically install whatever drivers it thinks might be fitting? I cannot find that configuration setting when I looked for it recently.

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• Scripting a database copy from MS Sql 2005 to 2008 without detach/backup/RDP

  - by James Santiago

  My goal is to move a single SQL 2005 database to a seperate 2008 server. The issue is my level of access to both servers. On each I can only access the database and nothing else. I cant create a backup file or detach the database because I don't have access to the file system or to create a proxy. I've tried using the generate script function of sql 2005 management studio express to restore the schema but receive command not supported errors when attempting to execute the sql on the new database. Similarly I tried using EMS SQL Manager 2005 Lite to script a backup of the schema and data but ran into similar problems. How do I go about acomplishing this? I can't seem to find any solutions outside of using the detach and backup functions.

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• File system loop detected in /var/named/chroot/var/named/

  - by Iko

  The problem start with a message No space left on device. After investigating a little (with google's help) I found : find: File system loop detected; /var/named/chroot/var/named' is part of the same file system loop as/var/named'. What I don't know is what to do next. I found this on centos.org : and see if the inode numbers are the same (they shouldn't be). If they are then you need to remove the /var/named/chroot/var/named/ hard link and recreate it as a directory the inode number are the same but I don't know exactly which folder to delete and what to do next thank you for any help Linux xxxxx.onlinehome-server.info 2.6.32-220.13.1.el6.x86_64 #1 SMP Tue Apr 17 23:56:34 BST 2012 x86_64 x86_64 x86_64 GNU/Linux

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• How can I delete virtual networks from command line?

  - by David Cobb

  I have Hyper-V Server 2008 R2 (without GUI) running at my colo for a week. I was connected via RDP and could use the menu interface and command line. I figured out how to connect Hyper-V Manager from my Win7 laptop (THANK YOU HVREMOTE!), and created and installed my VM. I created a virtual network that didn't work (no connectivity from my VM) so I created another using different settings, and now have lost access to the Hyper-V host. No ping, no RDP. Since I don't have console access, I cannot troubleshoot. I believe if I deleted the Virtual Networks I'd regain access, but I need a command line instruction for this, that the staff onsite could enter to accomplish this. I find no help anywhere obvious (MSDN, etc), the keywords are too general. Can anyone refer me to simple steps how to do this over command line or with the menu based interface on the console?

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• Debian Lenny - network interfaces(eth) are in DOWN state

  - by pachanga

  Folks, I'm facing a very weird problem with one of my production servers(it's Debian Lenny) - after reboot network interfaces(eth0,eth1) are in DOWN state. Looks like an Intel based networking adapter is installed on the server, lspci lists it as follows: Ethernet controller: Intel Corporation Device 10c9 (rev 01) The kernel driver responsible for this adapter is "igb". I tried "modprobe -r igb && modprobe igb", network interfaces first disappear then appear, but they are in DOWN state again. What could go wrong? It used to be working just fine. How can this be fixed?

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• UNRAID V4.7: Lost write permission on Win7/Android devices

  - by JROC

  I'm currently running V4.7 and I haven't touched any of the user or share settings, and I'm periodically losing read.write permission on both my windows 7 pc and my android tablet connecting over the wireless. Sometime I can access my shares and see the folder directories, but when attempting to open a folder windows denies me access saying I don't have the proper permission. This is after I have logged in with my main account that has full read/write access of everything, same on my android device. This all started when I attempted to delete a large amount of files (8gb) to make more room and about half way through started getting permission errors. What could be causing this? Thanks

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• UNRAID V4.7: Lost write permission on Win7/Android devices

  - by JROC

  I'm currently running V4.7 and I haven't touched any of the user or share settings, and I'm periodically losing read.write permission on both my windows 7 pc and my android tablet connecting over the wireless. Sometime I can access my shares and see the folder directories, but when attempting to open a folder windows denies me access saying I don't have the proper permission. This is after I have logged in with my main account that has full read/write access of everything, same on my android device. This all started when I attempted to delete a large amount of files (8gb) to make more room and about half way through started getting permission errors. What could be causing this? Thanks

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• Should I install Windows 7 on a 3 years old PC?

  - by Jitendra vyas

  This is my PC configuration, Should I upgrade my Windows XP to Windows 7. Currently I'm using Windows XP SP3 32 bit. Now will I get same performance or better performance or bad performance if I install Windows 7 on this system? Or would sticking with XP be better? Memory (RAM): 1472 MB DDR RAM (not DDR 2) CPU Info: AMD Sempron(tm) Processor 2500+ CPU Speed: 1398.7 MHz Sound card: Vinyl AC'97 Audio (WAVE) Display Adapters: VIA/S3G UniChrome Pro IGP | NetMeeting driver | RDPDD Chained DD Network Adapters: Bluetooth Device (Personal Area Network) | WAN (PPP/SLIP) Interface Hard Disks: 300 GB SATA HDD Manufacturer: Phoenix Technologies, LTD Product Make: MS-7142 AC Power Status: OnLine BIOS Info: AT/AT COMPATIBLE | 01/18/06 | VIAK8M - 42302e31 Motherboard: MICRO-STAR INTERNATIONAL CO., LTD MS-7142 Modem: ZTE USB Modem FFFE CDMA :

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• Is it possible to mount a hot-swappable drive when it is turned on?

  - by John

  In my PC, I have a hot-swap drive. Usually I keep it off to save power. I only really use it when accessing from another PC on the network. Is it possible to configure /etc/fstab to mount this drive when I turn it on (without having to shake the mouse, open file manager and click the drive to have it mounted? Currently, I have: UUID=a869e5ca-7d3b-4d64-91e2-eadbecd8c9e5 /media/i-TVShows ext4 rw,nosuid,nodev,auto,user,uhelper=udisks 0 0 in my /etc/fstab file but it doesn't seem to do the trick. I want the drive to be user-mountable, on power on, with RW access, and I'm thinking of adding 'nofail'...this is my first time writing to the fstab file, and a lot of the parameters I took from the output of 'mount' so feel free to correct any oddness you find. Thanks

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• Motorola SBG6850 / Linksys WRT54G network problem

  - by user96407

  I am trying to resolve issues with connecting my desktop and LAN capable printer to my network. I recently upgrade to the Motorola Cable Modem Gateway SBG6580 and have TWC coming into it, this works great for wired and wireless connectivity. Although, I am unable to connect to my device from this modem gateway. So, I am trying to cable a Linksys WRT54G (firmware 4.21.4 build 0) to the backside of the SBG6850 so I can use my printer on my network from both my wired desktop and wireless devices. I am pulling wireless off of the SBG6580 and do not want to change this. I have disable the wireless feature on the Linksys WRT54G at this moment. Can someone please help me through this dilemma? I am open to both wired and wireless solutions, but please tell me which approach your sharing in the first line of your response. Cheers!

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• Slower than expected 802.11n wireless network speeds

  - by Ian

  I have two ASUS laptops running Windows 7 connected wirelessly via 802.11n at 150 Mbit, as reported by Task Manager. The router is Netgear WNDR3700. When testing the wireless connection speed using iperf, I'm not getting nearly 150 Mbit: C:\>iperf -c 10.0.0.123 -t 30 ------------------------------------------------------------ Client connecting to 10.0.0.123, TCP port 5001 TCP window size: 8.00 KByte (default) ------------------------------------------------------------ [148] local 10.0.0.116 port 53819 connected with 10.0.0.123 port 5001 [ ID] Interval Transfer Bandwidth [148] 0.0-30.0 sec 41.2 MBytes 11.5 Mbits/sec That's a typical result. Running parallel client threads does not increase the overall total speed. Why would I only be getting 11.5 Mbit on a 150 Mbit connection?

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• Purging old Exchange email/content on SBS2003

  - by Aitch

  We have a Windows SBS 2003 server that used to manage email, calendaring and such like for a small organisation via Exchange. We successfully migrated everything to Google Apps for Business about 18 months ago. The server only provides local network services now. We have backed up and virtualized this machine and would now like to purge any residual mail to save disk space and speed up backup etc. The disk space is such that I believe the Exchange mail is still on there somewhere. I've stumbled through System Manager and poked about but cannot confirm whether this is the case. Where would this live and how might I go about it? (Disclaimer: I'm not a Windows admin, Linux is my thing...)

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• OpenVPN bandwith restrictrictions and cpu power needed

  - by user197664

  In Open VPN is there a way to set a maximum limit of data and speed per user? Say user "reptar' is abusing the VPN and I wanted to limit his/her speeds and/or data how would one go about doing this? Would I need to know the IP address of the abuser? Also, I have seen articles around the internet about turing a Rasberry PI in to a VPN server. If I did such a thing how many users would this device be able to handle at a given time? I believe it runs at 512 gb and clocks at around 700 mhz.

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• 59 vs 60 hertz on external display via DisplayPort

  - by Shiki

  Don't know if this is a really specific question or you'll help me out. Please do. I just bought a DeLock DisplayPort cable for my Lenovo T500. Tried to use it with the in-built Intel MHD4500, no use. With the ATI HD3650 (you can switch between the two vga on this machine) I get a normal picture, but only on 59hz. On 60 I get a smaller desktop size (strange). Any idea what can cause this? Will I have any problem if I use the 59hz? (Was using the display with a VGA cable but I get a blurry picture with that (dont matter what device I attach, VGA is like this on this display) and thats why I wanted to change.)

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• Getting "GRUB loading ... no such partition"?

  - by shameedp

  I am having a dual os, windows 7 and linux, the c drive have 20 GB, in which 5 GB is allocated for windows 7 (original) and 15 gb for linux since the spacing for windows is very low i used EaseUS partition manager and deleted my linux OS, and merged the unused space into my C drive, now it becomes 20GB, the things, after the reboot, I am getting GRUB loading. Welcome to GRUB! error: no such partition. entering rescue mode. . . Kindly help me guys the problem i am facing is i dont have a DVD drive to resolve it, using recovery mode. Waiting for your reply guys. in ls command i have (hd0) (hd0,msdos8) (hd0,msdos7) (hd0,msdos6) (hd0,msdos5) (hd0,msdos2) (hd0,msdos1)

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• Kernel Panic with gentoo boot (root partition not found)

  - by JB87

  Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(1,0) grub.conf default 0 timeout 30 splashimage=(hd0,0)/boot/grub/splash.xpm.gz title Gentoo Linux 2.6.34-r6 root (hd0,0) kernel /boot/kernel-2.6.34-gentoo-r6 root=/dev/ram0 real_root=/dev/sda3 vim:ft=conf: fdisk -l Device Boot Start End Blocks Id System /dev/sda1 * 1 5 40131 83 Linux /dev/sda2 6 71 530145 82 Linux swap / Solaris /dev/sda3 72 1044 7815622+ 83 Linux so im having trouble getting gentoo to boot, how can I change it from looking for root at block(1,0) to block(0,0) which is where my root partition is created? I though setting it to look to that hdd in grub is all I needed? that is my first guess to what might be causing the problem but not sure why it is giving this error. please advise...

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• How to detect hard disk failure?

  - by Devator

  So, one of my servers has a hard disk failure. It's running software RAID, the system locked up and according to /proc/mdstat (and /var/log/messages), it's really down: Personalities : [raid1] md2 : active raid1 sdb2[1] 104320 blocks [2/1] [_U] md5 : active raid1 sdb5[1] 2104448 blocks [2/1] [_U] md6 : active raid1 sdb6[1] 830134656 blocks [2/1] [_U] md1 : active raid1 sdb1[1] 143363968 blocks [2/1] [_U] and Nov 5 22:04:37 m38501 smartd[4467]: Device: /dev/sda, not capable of SMART self-check However when I do smartctl -H /dev/sda, it passes the test. It also passes the test with smartctl --test=short /dev/sda. So, is smartctl a broken testing tool, or am I doing something completely off?

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