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• What virtualization solution should I try next, after hitting problems w/ VMWare Player in dual-netw

  - by Alex R

  I have been using VMWare Player 2.5 for a while (Ubuntu guest on Vista host, 32-bit). VMWare had worked great until now but then I hit a brick wall: Due to some reorganization of my home network, the host machine now has to use a wireless connection to reach the Internet, while the printer, fileserver, and other important stuff are attached to a local gigabit hub. I have tried several tricks, such as editing the .vmx file, changing settings in vmnetcfg, etc, but I'm still unable to get the virtual Ubuntu box to connect each of the two virtual NICs to different networks (I did get it to recognize two NICs, but both DHCP'd onto the gigabit LAN). So, I'm ready to dump vmware for something with a little more low-level control of network settings. Virtualization is such a crowded space, I could spend months evaluating every product out there. I'm hoping for a shortcut... Can anyone recommend the best VM for my situation described above? Thanks

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• Xen Disk Performence Issues

  - by user98651

  I'm currently using Xen PV on CentOS 5 with my domU's as flat files running on a hardware RAID controlled (write cache enabled) formatted with XFS. On the dom0 I can get about 500MB/s in a 2GB dd write from /dev/zero however on the domU's I'm lucky if I get 10MB/s (it is usually around half that). I've tried changing the disk scheduling to NOOP on the domU's, changed some mount parameters and tweaked the performance allocations of both the dom0 (prioritize CPU) and domU's (increase RAM and VCPU allocations). None of these steps have produced any noticeable change in performance. My instinct here is that it is not a hardware problem, due to the solid performance of the dom0. Any ideas on what might be causing this problem? I'm considering moving to LVM based domU's.

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• How do I make a backup of a live server?

  - by Jurily

  At my new job, I have a production server with the following qualities: Windows (XP I think), ancient hardware Absolutely vital database No backups whatsoever Everyone in the company has full admin rights, the passwords are stored in a .txt on the global share No installers, except for the OS The machine itself is sitting on a wooden shelf 5 feet above the ground against an external wall with frequent truck traffic on the other side; the shelf is already bent from the constant load Hasn't been rebooted in $DEITY knows how long, my predecessor wasn't even sure if it would survive it UPS is installed, but since everything is hooked up to it, it would last 10 minutes tops No spare parts or hardware budget How do I make a full backup with minimal impact on the server? I'm not sure how close it is to a total meltdown. For all I know, plugging in a USB stick could kill the company, and of course it will be all my fault, since "it was running fine before you touched it". The ideal solution would be a VM, so I have a test environment as well (separate of course).

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• Secure Browsing, how [closed]

  - by Jhonny Bigodes

  Possible Duplicate: How to browse safely? What's the best way to browse "suspicious" sites safely. I know Firefox used to be "the thing", but now I don't think it is (IMHO). What I'm using now is a virtual machine (with virtual box), rhat I periodically format. I heard some time ago of a project that glued the 2 together (kinda... everytime you startup the program it used a fresh machine with a fresh browser), but I lost track of them So my question is: How can I Browse the web securely ? Ps.: In in ubuntu

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• Postfix not delivering mails

  - by Sotocan

  Hi all, I have problems with a recently configured postfix MTA. When postfix starts the following warning appears: "postfix/qmgr[5078]: warning: connect to transport private/filter: No such file or directory" I have amavis-new as a content-filter, but even if I comment-out the relevant line, the warning appears. As a result (I think), of the above, I get errors like below, for every virtual domain that I have: "postfix/error[5080]: 254851834107: to=, relay=none, delay=13082, delays=13082/0.01/0/0.01, dsn=4.3.0, status=deferred (mail transport unavailable)" The good news for me, is that somehow I managed to fix that (don't ask me how!!!!) The problem is that now I have 50 or so mails, that were affected by the aforementioned problem, in the mail-queue... If I "postqueue -f " I get the same style of error as before (mail transport unavailable)...however new mails are delivered to their final destination properly... Any suggestions? Kind regards. P.S. Local mail delivery from/to Unix and virtual users, was OK write from the beginning!

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• For how long do I need to store the logs?

  - by mindas

  I will soon be running an internet-based public service which will physically be hosted in the UK on a virtual server. The virtual server is provided by the ISP. I was wondering if there is/are any legal requirement(s) to keep access logs, and if yes - for how long? There is a Wikipedia article that touches this subject but I'm afraid my brain just can't grasp the legislative gibberish. I believe there's EU law and there's UK law; and I do need to comply to both, right? Can somebody explain this in pure layman's terms?

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• How to Virtualize an OEM windows install.

  - by jumentous

  I've bought a new computer and like always it comes with windows 7 pre-installed. I'm a linux user by default but i still keep a virtual windows installation around. Is it possible to install my linux distribution, and use the OEM license that came with the computer to create the virtual instance? I have no intention of moving the license off the physical machine so i'm sure i could argue that i'm not violating the license but i don't expect that this would work and activate without great legal battles. So in the event that this doesn't work what other options do i have? Can i shrink the physical partition and have Qemu boot it? My thoughts are that windows would detect the change in hardware and fail. What can i do with this windows install as a linux user?

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• Suggestion of device WiFi range in it's spec. Possible?

  - by SeeR

  I have router Draytek Vigor 2100VG at home almost in the center of it. The farthest point at my home is my balcony, ~12m from it. I have constant wifi signal range problems with some of my devices, but not with others. Notebook Lenovo W510 - no problems Nokia Home Music - always on 10m - no problems Sony PS3 - always on 7m - no problems Sony tablet S - problems around 6m Sony PSP - problems around 8m Sony PS Vita - problems around 8m Nokia E63 - problems around 8m I'm curious why my Notebook don't have any problems even on the balcony? I guess it has better hardware or uses more power for transmission. This information is really important when you want to buy new device/computer, so my real question is: Can device wifi range can somehow be found/suggested from official hardware technical specification? If not Is there some web page with wifi range reviews?

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• VirtualBox cloned Ubuntu Server network error

  - by Luke

  I run a number of virtual servers on my network and I want to be able to easily clone base installations of Ubuntu Server. I use the VBoxManage command to clone the actual hard disk and I then create a new profile for my VM and copy over the settings of the original VM. However, when I boot into the cloned VM, there seems to be a network problem. When I issue a PING I get the message "Network unreachable". I traced it down to the fact that the virtual network card of the cloned VM has a different MAC address then the original VM. When I copy the MAC address the clone seems to work fine. How can I have the cloned VM have it's own MAC address?

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• Compaq Presario Laptop Monitor Problems

  - by Nishant

  I am attaching a few pics of my laptop monitor now . Can you please tell me if this is a hardware error which can be rectified by replacing the monitor ? How this happened - I accidently hit my leg on the laptop and jammed it against the wall and ever since the monitor is like this .I plan to replace the Monitor by buying a spare parts laptop that sells in ebay . I wonder if this is a LCD HARDWARE problem or problem with the cable that goes to the monitor . THE OS works fine in the computer .I hope my question is clear . http://img163.imageshack.us/gal.php?g=good1z.jpg

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• apache httpd cannot browse through browser

  - by nuttynibbles

  i've setup apache and php on a virtual machine. everything works fine in the virtual machine. im able to execute php files and run up phpmyadmin connecting to mysql. on my host machine, im able ping and ssh into the remote machines. however, im unable to browse the php files on the host browser using the ip address. in my httpd.conf, im listening to port 80. i enabled the ServerName 192.168.75.102:80 am i missing some settings? port settings maybe?

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• USB Device With Embedded Fileserver

  - by Richard Martinez

  I'm attempting to access logs from a proprietary hardware box with no reasonable hope of modifying the software. There is a process on the device to dump log files to a flash drive on the USB port after entering a code sequence. Currently, analysis of the logs requires the following: Physical presence at the device Manual entry of the code sequence Removal of USB device Insertion of USB device into a normal Linux box I'm hoping there is some sort of device that can act as a USB mass storage device but simultaneously make it's contents available as a network file share (wired preferred). Does such a device currently exist? A combo hardware/software solution would also work.

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• Which server requirment for a Redmine, Git and website hosting?

  - by Ephismen

  Me and 9 other students are going to start a project that will last a minimum of 2 years, for this purpose we are looking to host all our work on a server. Here are a few tools we would like to work with: Redmine GIT Hosting a website/blog to show our work Hosting an internal and private development website/blog We haven't decided yet which OS we will install, but we were looking toward Ubuntu or Fedora. Having a limited budget, 300$/year, we would like to have some advices on the following dedicated server specifications: Kimsufi 2G: Hardware: Intel Celeron/Atom, 1.20 Ghz, 64 bits, 2Gb DDR2, HDD 1 To, Backup FTP 100Gb Network: Connection 100 Mbps, Illimited trafic Dedibox SC: Hardware: Dell Nano U2250, 1x 1,6GHz, 64 bits, 2Gb DDR2, HDD 160 Gb Network: Connection 1Gbit/sec, Illimited trafic Will these server be sufficient? Should we host the websites on another platform? Would a virtualized server be more appropriate? Thank you for your answers, Ephismen.

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• Can I use one virtualbox disk for multiple machines?

  - by mxp

  I'm not sure what search term to use and skimming through the VirtualBox manual didn't help me either, so I ask my two questions here... My setup is this: PC with dual boot into Windows 7 and a Debian operating system (both 64bit). I've created a virtual machine (Kubuntu, 64bit) under Windows and put it's VDI file on a SMB share of my NAS. Then I created a VM under linux using the same settings for memory etc and assigned the existing VDI file to it. My idea was that I could use that virtual machine from Windows and Linux as well. (1) Is this generally something that should work without problems? I noticed that snapshots get me into trouble because they appear to be not visible from the other operating system: The snapshots I took after installing the guest system are not visible under Linux. That's why I shut down the VM after usage and not save its state while it's running. My current problem is this: I have used the VM under Windows first, then under Linux. Now it will only start on Linux. When trying this on Windows the guest OS detects some kind of hard disk error and fails to boot because it cannot mount its drive. Obviously the virtual hard disk won't fail so it must have something to do with me using it under Linux. (2) How can I fix that? Update: It also looks like any changes I made in the VM under Linux have been reset by trying to boot it under Windows. Looks like it's back to the latest snapshot. I'm confused... Update The answer to my first question can be found below. In short: It works, as long as you don't use snapshots. The answer to my second question is this: Under Windows set the VM back to the latest snapshot and then discard the snapshot so it gets merged. There should be no snapshots left at the end. If you have multiple snapshots, discard the earliest ones first (Snapshot 1, then 2, 3, ...). I'm not sure what happens if you start at the end (.., 3, 2, 1). This of course leads to some data loss since you revert all changes since the last snapshot. But at least the VM is usable again.

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• "HDA audio bus driver is required and not found" on Dell Optiplex

  - by user1666698

  I have Dell Optiplex 745 with Windows 7 installed on it. I'm trying to use the Windows XP audio driver as Windows 7 drivers aren't available for Optiplex 745 and Windows Vista driver is displaying that it's not compatible with my hardware. When I try to install the Windows XP audio driver, it's displaying an error HDA audio bus driver is required and not found The installation fails then. I have researched thourghly and used many drivers but my audio is not working at all. I was also told that it might be a problem with my hardware – that is, a problem with the board.

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• How to setup a Linux machine to remotely use laptop screen as a second display?

  - by Ignas Limanauskas

  I am looking for a similar solution to MaxiVista, but for Linux (Ubuntu). I have an Ubuntu machine with just one display attached, but I also have a Windows laptop running a virtual machine with Ubuntu installed. I figured there must be a way to trick the main Ubuntu machine remotely use the virtual machine's display capabilities. After all, X11 does support forwarding and things like that. Any ideas how to do it using VNC? I saw some references to xdmx, but instructions so far are vague and do not seem to work on my machine(s).

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• IPv4 NameVirtualHost, IPv6 VirtualHost

  - by MadHatter

  Like many of us, I have an apache server (2.2.15, plus patches) with a lot of virtual hosts on it. More than I have IPv4 addresses, to be sure, which is why I use NameVirtualHost to run lots of them on the same IPv4 address. I'm busily trying to get everything I do IPv6-enabled. This server now has a routed /64, which gives me an awful lot of v6 addresses to throw around. What I'm trying to find is a simple way to tell each v4-NameVirtualHost that it should also function as a VirtualHost on a unique ipv6 address. I really, really don't want to have to define each virtual host twice. Does anyone know of an elegant way to do this? Or to do something comparable, in case I've embedded any dangerously-ignorant assumptions in my question?

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• How to move an existing Win7 setup to a RAID-1 array?

  - by Matthew Scharley

  Currently I have a the following setup: Drive A/B: Identical HDD's Drive C: 2TB external drive with plenty of space currently. Hardware RAID controller Currently I have Drive A which is my boot drive (Win7), and Drive C which is a data drive, and Drive B which I only recently received and is blank. What is the best way of moving off of Drive A, setting up the hardware RAID and then migrating my data back onto the RAID array? I'm proficient with Linux, but I'm not sure if I can get away with simply using dd here. There is currently enough free space on Drive C to take 5-6 copies of a disk image of Drive A, so space isn't an issue.

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• Backup tape compression

  - by pufferfish

  What things should I check to confirm that compression is actually happening on our tape backup system? Although the tapes are marked as 200G/520G (native/compressed) capacity, they seem to fill up before the 200G mark (some less than 100G). I'm using - Sony AIT-4 tape autochanger - Sony SDX4-200C (AIT-4) tapes - Ubuntu Lucid - Bacula I've tried checking hardware compression with: tapeinfo -f /dev/nst0, which gives Product Type: Tape Drive Vendor ID: 'SONY ' Product ID: 'SDX-900V ' Revision: '0102' Attached Changer API: No SerialNumber: '0001000036' MinBlock: 2 MaxBlock: 8388608 SCSI ID: 1 SCSI LUN: 0 Ready: yes BufferedMode: yes Medium Type: Not Loaded Density Code: 0x33 BlockSize: 0 DataCompEnabled: yes DataCompCapable: yes DataDeCompEnabled: yes CompType: 0x3 DeCompType: 0x3 BOP: yes Block Position: 0 Partition 0 Remaining Kbytes: 201778000 Partition 0 Size in Kbytes: 201779000 ActivePartition: 0 EarlyWarningSize: 0 NumPartitions: 0 MaxPartitions: 0 ... so I presume it's on. Notes: The Bacula documentation says hardware compression needs to be enable with "system tools such as mt"

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• Fixing copy/paste for Remote Desktop Connection sessions [duplicate]

  - by netadictos

  Possible Duplicate: Can't copy and paste in Remote Desktop Connection session Recently I have been working with Remote Desktop Connection. I use it to access a virtual machine implemented through Hyper-V. I have had many problems with the simple operation of cut-and-paste from my machine to the virtual one. The link between my clipboard and the remote clipboard is often broken. It is usual that this happens, when I copy/cut in the remote machine and then copy in my computer and then paste in the remote machine, How do I fix this?

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• Macrium Reflect Server v5 for Server Cloning?

  - by Stephane

  I'm starting to have clients with basic windows server setups. They have data backups, but no real strategy for system backups. I've been looking at cloning software which with linux or images seems easy enough (aside from DC complications, and other things I'm going to ignore until I learn more). What do people do when you have a non-disk hardware failure? I"ve been looking at server migration backup solutions and this one seems to be the cheapest. Anyone tried this? What more do I need to do to safeguard server setups? The hardware on these systems is a little out of date with Server 2003 setup at both businesses. Thanks!

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• How do I bridge a connection from Wi-Fi to TAP on Mac OS X? (for the emulator QEMU)

  - by penx

  I'm trying to setup a bridge between my Wi-Fi connection and an emulator (QEMU). I need a virtual machine to be on the same LAN as the host, with its own IP address. QEMU requires using a TAP (virtual network device) so I have installed tuntaposx, have it running, and can open up QEMU using a TAP: qemu-system-arm -kernel zImage.integrator -initrd arm_root.img -m 256 -net nic -net tap,ifname=tap1 -nographic -append "console=ttyAMA0" I have a script that configures the bridge once QEMU has opened up the TAP interface: sysctl -w net.link.ether.inet.proxyall=1 sysctl -w net.inet.ip.forwarding=1 sysctl -w net.inet.ip.fw.enable=1 ifconfig bridge0 create ifconfig bridge0 addm en1 ifconfig tap1 0.0.0.0 up ifconfig bridge0 addm tap1 ifconfig bridge0 up If I manually set an IP on the VM, I can ping from the VM to the host, but not from the host to the VM. Also, I can't access the rest of the network from the VM - including not being able to set an IP over DHCP. Any ideas?

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• Is it possible to detect that a database connection is to a copy rather than to the original database?

  - by user149238

  I have an application that needs to know if it is connected to the original database that it was installed with or if the connection is to a copy of that database. Is there any known method to know if the database has been cloned and the application is no longer connected to the original? I am specifically interested in MS SQL Server and Oracle. I was kicking ideas around for a stored procedure but that most likely doesn't have access to the hardware to confirm unique hardware information that would somewhat guarantee that the database is the one that it was originally connected to during installation. I'm trying to prevent/detect cloning of a database so that there is only 1 "true location of truth". Thanks!

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• Clustering with Vsphere and Apache load balacing

  - by Anonymous2011

  I was looking at Vsphere to automatically load balance my apache web servers, and mysql servers but will this actually do the job? I know it says it does auto load balancing but not actually sure it quite means what I want to achieve. Is there an easier way to set up a php-apache and mysql cluster within virtual machines? Or are there any guides to clustering? (I have tried googling without much luck) Any help towards understanding/setting up clustering and load balancing within virtual machines appreciated.

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• UsbView for FireWire (Windows)

  - by peterchen

  Does anyone know a FireWire Hardware scan tool, similar to what USBView does for USB devices?

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