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• Route specific network traffic through vpn in virtualbox guest

  - by Sander

  I am running OSX with a windows server 2008 guest in Virtualbox. My goal is to route some of the network traffic in the host through the server guest. This is because the win2008 server has a VPN connection to my workplace using a Smartcard solution which can not operate on OSX. My current set-up is like this: OSX (Host): connected to the internet via en01 Win2008 (Guest): connected to the internet using NAT (lan1 in guest) has a SSTP VPN connection to my workplace is connected to the guest using an Host Only Adapter vboxnet0 (LAN2 in guest) The important part is about the host (OSX). Primarily I want all network traffic to just go through en01. However, all traffic which can only be accessed through the VPN must go through the guest and through the VPN. I have one specific FQDN which can only be accessed through the VPN (say corp.mycompany.com). I do not know much about networking. I thought I would be able to get it to work by bridging together LAN2 and LAN1 but this didn't seem to work this: http://archives.aidanfindlater.com/blog/2010/02/03/use-vpn-for-specific-sites-on-mac-os-x/ using a loopback adapter on WinXP (when I did not have win2008 yet, but this doesn't work because I can't create a PPTP connection) And I've also read about Routing and Remote Access but I have no idea on how to use this. Can someone help me in the right direction?

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• Can't login to Guest Session or Standard Account?

  - by Rory

  Thanks in advance for any help. Ubuntu 12.04 Up until recently my mother has been using the Guest Session when she logs on; now, the Guest Session will not login. When I try to login to it, it bounces me back to the login screen. I then tried to login on a Standard account (Alberta) which I made prior to not being able to login to Guest, and it turns out I cannot login - it gives the "Invalid Password" error. So then I tried to change her password from my own account (Rory) which is the master account. Under the Login Options where the Password option is, it says "Account disabled" and it will not let me change this; I try to apply a password, get no error, but it just still says "Account disabled". Then I tried to delete the Alberta account altogether, but got this error: I also tried sudo userdel -r Alberta but got this error: "userdel: cannot lock /etc/shadow; try again later." I don't know what to do now. Any help appreciated.

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• How do I mount a CIFS share via FSTAB and give full RW to Guest

  - by Kendor

  I want to create a Public folder that has full RW access. The problem with my configuration is that Windows users have no issues as guests (they can RW and Delete), my Ubuntu client can't do the same. We can only write and read, but not create or delete. Here is the my smb.conf from my server: [global] workgroup = WORKGROUP netbios name = FILESERVER server string = TurnKey FileServer os level = 20 security = user map to guest = Bad Password passdb backend = tdbsam null passwords = yes admin users = root encrypt passwords = true obey pam restrictions = yes pam password change = yes unix password sync = yes passwd program = /usr/bin/passwd %u passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* . add user script = /usr/sbin/useradd -m '%u' -g users -G users delete user script = /usr/sbin/userdel -r '%u' add group script = /usr/sbin/groupadd '%g' delete group script = /usr/sbin/groupdel '%g' add user to group script = /usr/sbin/usermod -G '%g' '%u' guest account = nobody syslog = 0 log file = /var/log/samba/samba.log max log size = 1000 wins support = yes dns proxy = no socket options = TCP_NODELAY panic action = /usr/share/samba/panic-action %d [homes] comment = Home Directory browseable = no read only = no valid users = %S [storage] create mask = 0777 directory mask = 0777 browseable = yes comment = Public Share writeable = yes public = yes path = /srv/storage The following FSTAB entry doesn't yield full R/W access to the share. //192.168.0.5/storage /media/myname/TK-Public/ cifs rw 0 0 This doesn't work either //192.168.0.5/storage /media/myname/TK-Public/ cifs rw,guest,iocharset=utf8,file_mode=0777,dir_mode=0777,noperm 0 0 Using the following location in Nemo/Nautilus w/o the Share being mounted does work: smb://192.168.0.5/storage/ Extra info. I just noticed that if I copy a file to the share after mounting, my Ubuntu client immediately make "nobody" be the owner, and the group "no group" has read and write, with everyone else as read-only. What am I doing wrong?

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• Mouse freezes for User Account but not guest session

  - by Rosie

  this question has been asked before but there wasn't an answer. The mouse on my computer freezes whenever I log in to my User Account, a few seconds after, just before the account opens. The keyboard still works, and programs seem to work as normal. If I log out, the mouse starts to work again. If I log in as a guest, the mouse works fine throughout. I have tried restarting, shutting down, which hasn't resolved the problem. Just after the problem started, I logged in as a guest and tried to open Firefox, but although I haven't logged in as a guest for ages, there was a message saying that Firefox couldn't be opened as it was already running. Could this have been in my main account? Do you know how I can unfreeze the mouse? Is it the same procedure that is recommended on other questions? I am extremely untechnical, and a friend did all the ubuntu installation. So a very detailed step by step would be appreciated if I have to use code to fix this.

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• VPN connection sharing for Ubuntu guest

  - by pzico

  I have Ubuntu 10.04 guest on Windows XP host. I need to use a specific VPN software that works only on Windows. How should I configure virtualbox/guest so that the VPN connection would be visible on guest? I already tried NAT and bridged network settings. With both of these options I get only normal internet connection to work, but sites requiring VPN don't work on guest, only on host.

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• SSH into VirtualBox Guest: Connection Refused

  - by Eric J.

  Setup Windows 7 64-bit host OS running VirtualBox 4.2, with Ubuntu 12.04 guest OS. OpenSSH server is installed and running (ssh -v localhost connects locally in the guest machine). Can SSH to external servers (no outbound Windows firewall rule blocking port 22) Can ping the IP of the guest (192.168.56.101) Problem Using PuTTY to SSH to the IP of the guest OS (192.168.56.101), PuTTY returns almost immediately with Network error: connection refused How can I diagnose & resolve this issue?

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• Force Finder to log in as Guest to a SMB share

  - by slhck

  I have a QNAP NAS that offers a few SMB shares. As I'm in a trusted environment, my shares are accessible as guest rather than with a combination of username and password. Problem Now, when I click the name of the device in Finder's sidebar, I get the black "Connection failed" bar, with the option "Connect as...". When I click that, I receive: I can however press ? + K and enter the server's name manually, which gets me to this window: Here, I have to select "guest". Now, I can select one of the shares to connect to, and I'm finally connected to the server. If I select it in the sidebar, I get a list of all shares available, because I'm connected as "guest", obviously: What I need Well, as soon as I unmount all shares, I have to go through the same procedure of manually logging in as "guest" again, which I find quite annoying. Is there any way I could get Finder (or the underlying SMB client) to know which credentials to use? Or should I look for the solution rather on the server side? (I know that other SMB shares seem to work fine in my network) Diagnostics The only thing I can get out of Console.app is: 5/15/11 7:36:40 PM /System/Library/CoreServices/Finder.app/Contents/MacOS/Finder[200] SharePointBrowser::handleOpenCallBack returned 64 This message occurs when I click the name of the SMB server in the Finder sidebar. Here's the output of `smbclient -L meredith -U guest -d=2 charon:~ werner$ smbclient -L meredith -U guest -d=2 added interface ip=192.168.100.11 bcast=192.168.100.255 nmask=255.255.255.0 tdb(unnamed): tdb_open_ex: could not open file /private/var/samba/gencache.tdb: Permission denied Got a positive name query response from 192.168.100.100 ( 192.168.100.100 ) Password: Domain=[MEREDITH] OS=[Unix] Server=[Samba 3.5.2] Sharename Type Comment --------- ---- ------- music Disk movies Disk photos Disk software Disk archive Disk backups Disk IPC$ IPC IPC Service (NAS Server) Got a positive name query response from 192.168.100.100 ( 192.168.100.100 ) Domain=[MEREDITH] OS=[Unix] Server=[Samba 3.5.2] Server Comment --------- ------- Workgroup Master --------- ------- WORKGROUP MEREDITH Also, things I've tried: There is no relevant entry in the Keychain (but why would it, I'm only connecting as guest) Connecting with user name "Guest" and empty password logs me in but still after ejecting the last share, I get the same "Connection failed" error as before. The appropriate entry is made in the Keychain but obviously has no effect.

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• Force Finder to log in as Guest to a SMB share

  - by slhck

  I have a QNAP NAS that offers a few SMB shares. As I'm in a trusted environment, my shares are accessible as guest rather than with a combination of username and password. Problem Now, when I click the name of the device in Finder's sidebar, I get the black "Connection failed" bar, with the option "Connect as...". When I click that, I receive: I can however press ? + K and enter the server's name manually, which gets me to this window: Here, I have to select "guest". Now, I can select one of the shares to connect to, and I'm finally connected to the server. If I select it in the sidebar, I get a list of all shares available, because I'm connected as "guest", obviously: What I need Well, as soon as I unmount all shares, I have to go through the same procedure of manually logging in as "guest" again, which I find quite annoying. Is there any way I could get Finder (or the underlying SMB client) to know which credentials to use? Or should I look for the solution rather on the server side? (I know that other SMB shares seem to work fine in my network) Diagnostics The only thing I can get out of Console.app is: 5/15/11 7:36:40 PM /System/Library/CoreServices/Finder.app/Contents/MacOS/Finder[200] SharePointBrowser::handleOpenCallBack returned 64 This message occurs when I click the name of the SMB server in the Finder sidebar. Here's the output of `smbclient -L meredith -U guest -d=2 charon:~ werner$ smbclient -L meredith -U guest -d=2 added interface ip=192.168.100.11 bcast=192.168.100.255 nmask=255.255.255.0 tdb(unnamed): tdb_open_ex: could not open file /private/var/samba/gencache.tdb: Permission denied Got a positive name query response from 192.168.100.100 ( 192.168.100.100 ) Password: Domain=[MEREDITH] OS=[Unix] Server=[Samba 3.5.2] Sharename Type Comment --------- ---- ------- music Disk movies Disk photos Disk software Disk archive Disk backups Disk IPC$ IPC IPC Service (NAS Server) Got a positive name query response from 192.168.100.100 ( 192.168.100.100 ) Domain=[MEREDITH] OS=[Unix] Server=[Samba 3.5.2] Server Comment --------- ------- Workgroup Master --------- ------- WORKGROUP MEREDITH Also, things I've tried: There is no relevant entry in the Keychain (but why would it, I'm only connecting as guest) Connecting with user name "Guest" and empty password logs me in but still after ejecting the last share, I get the same "Connection failed" error as before. The appropriate entry is made in the Keychain but obviously has no effect.

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• File Not Found error launching Guest OS in a non-administrator user account

  - by ToreTrygg

  Hi, I am running Fusion 2.0.6 (196839) on an iMac running 10.6.2 with 3 user accounts (1 Administrator). I have Fusion set up to share the Guest OS, and it's been working splendidly for nearly a year. Within the Guest OS (Windows XP PRO), there are also 3 user accounts (1 Administrator). Last night I went to back up my VM to an external drive, and to minimize the file size and transfer time, I deleted all Snapshots but the most-recent one. I then backed up the VM externally (28.23 GB). Today, one of my users tried to launch the Guest OS from within her user account, and received the following error message: "File Not Found: Windows XP Pro-000006.vmdk "This file is required to power on this virtual machine. If this file was moved, please provide its new location." My two choices are Cancel and Browse. When I browse, I can locate the Windows XP Pro-000006.vmdk file, which appears to be contained within the VM file (Windows XP Pro.vmwarevm). However, it still won't launch from a non-Admin user account. If I view the package contents of the VM file from the user account, the above file is present and appears to be created upon each launch of the Guest OS. If I go back to my Administrator account on the Mac and then launch Fusion, the Guest OS works perfectly for all 3 user accounts within XP Pro. I have tried to delete the Guest OS from Fusion's Library within the problem user account, then re-connect it to that Library, but the result is the same. The Guest OS data integrity is 100% -- but is accessible only from the OS X Administrator account. This problem only surfaced after deleting several older Snapshots. Again, the data is there, the Guest OS powers up normally in the Mac's Administrator account, but persistently returns the above error when attempting to power on from a non-Admin account on the Mac. I'm not sure how this is affecting the error, but when I look at Hard Disk Settings, the "unable-to-locate" file is the filename of the virtual HD. I don't want to make any changes to my (working) VM without any advice from the knowledgeable people on this forum. Any help will be greatly appreciated, thanks!

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• VPN connection sharing for Ubuntu guest

  - by pzico

  I have Ubuntu 10.04 guest on Windows XP host. I need to use a specific VPN software that works only on Windows. How should I configure virtualbox/guest so that the VPN connection would be visible on guest? I already tried NAT and bridged network settings. With both of these options I get only normal internet connection to work, but sites requiring VPN don't work on guest, only on host.

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• VirtualBox Port Forward not working when Guest IP *IS* specified (while doc says opposite)

  - by Patrick

  Trying to port forward from host (Mac OS X) 127.0.0.1:8282 - guest (CentOS)'s 10.10.10.10:8080. Existing port forwards include 127.0.0.1:8181 and 9191 to guest without any IP specified (so whatever it gets through DHCP, as explained in the documentation). Here is how the non-working binding was added: VBoxManage modifyvm "VM name" --natpf1 "rule3,tcp,127.0.0.1,8282,10.10.10.10,8080" Here is how the working ones were added: VBoxManage modifyvm "VM name" --natpf1 "rule1,tcp,127.0.0.1,8181,,80" VBoxManage modifyvm "VM name" --natpf1 "rule2,tcp,127.0.0.1,9191,,9090" And by "non-working", I of course mean not listening (as a prerequisite to forwarding): $ lsof -Pi -n|grep Virtual|grep LISTEN VirtualBo 27050 user 21u IPv4 0x2bbdc68fd363175d 0t0 TCP 127.0.0.1:9191 (LISTEN) VirtualBo 27050 user 22u IPv4 0x2bbdc68fd0e0af75 0t0 TCP 127.0.0.1:8181 (LISTEN) There should be a similar line above but with 127.0.0.1:8282. Just to be clear, this port is listening perfectly fine on the guest itself. And when I remove the guest IP (i.e., clear the 10.10.10.10) the forward works fine, albeit to eth0 (not eth1 where I need it). I can tcpdump and watch the traffic flow back and forth. And yes, I've disabled iptables entirely while testing -- it's not getting blocked anywhere on the guest. As VirtualBox writes in their documentation, you are required to specify the guest IP if it's static (makes sense, no DHCP record it keeps): "If for some reason the guest uses a static assigned IP address not leased from the built-in DHCP server, it is required to specify the guest IP when registering the forwarding rule:". However, doing so (as I need to), seems to break the port forward with nary a report in any log file I can find. (I've reviewed everything in ~/Library/VirtualBox/). Other notes: While I used the above command to add the third rule, I've also verified it showed up correctly in GUI and then removed/re-added from there just to make sure). This forum link -- while very dated -- looks somewhat related in that a port forward to a static IP was not appearing (perhaps they think due to lack of gratuitous arp being sent for host to know IP is there/avail?). Anyway, what gives? Is this still buggy? Any suggestions? If not, easy enough workarounds? What's interesting is that this works perfectly fine on another user's Mac, however he's running a slightly older version (4.3.6 v. 4.3.12).

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• Achieving A 1600 x 900 Resolution For (Guest OS) Ubuntu Under (Host OS) Windows 7

  - by panamack

  I am running Ubuntu 11.10 as a guest OS using VirtualBox 4.1.16 installed on Windows 7 Ultimate. On my laptop I'd like to be able to run Ubuntu in full screen mode at 1600 x 900. I only have options within the virtual machine to select 4:3 display settings such as 1600 x 1200, 1440 x 1050 etc. I have guest additions installed. At the windows command prompt, I tried typing: VBoxManage setextradata "Virtual Ubuntu Coursera ESSAAS" "CustomVideoMode1" "1600x900x16" This didn't work, still no 1600 x 900 res available in Ubuntu. I tried this having read the following section of the VirtualBox help (this also says something about a 'video mode hint feature' not sure what this means): 9.7. Advanced display configuration 9.7.1. Custom VESA resolutions Apart from the standard VESA resolutions, the VirtualBox VESA BIOS allows you to add up to 16 custom video modes which will be reported to the guest operating system. When using Windows guests with the VirtualBox Guest Additions, a custom graphics driver will be used instead of the fallback VESA solution so this information does not apply. Additional video modes can be configured for each VM using the extra data facility. The extra data key is called CustomVideoMode with x being a number from 1 to 16. Please note that modes will be read from 1 until either the following number is not defined or 16 is reached. The following example adds a video mode that corresponds to the native display resolution of many notebook computers: VBoxManage setextradata "VM name" "CustomVideoMode1" "1400x1050x16" The VESA mode IDs for custom video modes start at 0x160. In order to use the above defined custom video mode, the following command line has be supplied to Linux: vga = 0x200 | 0x160 vga = 864 For guest operating systems with VirtualBox Guest Additions, a custom video mode can be set using the video mode hint feature. UPDATE 02.06.12 I've just tried creating a new virtual machine using the same original disk image I had been given. This had Guest Additions v 4.1.6 installed and provided me with the 1600 x 900 full screen display I want. It's after I then install Guest Additions v 4.1.16 (the version included with my VirtualBox installation) that my only choices are 4:3 displays e.g. 1600 x 1200. Seems this is the cause.

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• modprobe vboxguest failed

  - by Andrew123321

  I am running an Ubuntu Server (12.0.4-beta2; kernel 3.2.0) in VirtualBox (host is Win7) and I want to use shared folders. I've followed the manual to set up vbox guest additions http://www.virtualbox.org/manual/ch04.html#idp5801200 but this error occurs with every startup: Starting the VirtualBox Guest Additions ...fail! (modprobe vboxguest failed) Starting VirtualBox Guest Addition service VirtualBox Additions module not loaded! When I try it myself: $ modprobe vboxguest FATAL: Module vboxguest not found. Did I do something wrong, what do I need to fix it? Thanks for help.

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• Automatic subdomain wildcard for DHCP-DDNS additions?

  - by Igor Clark

  I'm running dhcp-4.0.2 server and bind-9.6.1-P3. When a new Mac OSX DHCP client with the name "harry" connects to the network, the DHCP server gives it a lease, and adds appropriate A & PTR records via DDNS. This works fine; harry.my.domain points to (e.g.) 192.168.1.3, the Mac client knows that its name is harry.my.domain, 192.168.1.3 points back to harry.my.domain, and all that is great. Now I want *.harry.my.domain to resolve to 192.168.1.3, and I don't want to have to go in and add wildcard records into zone files. I want the Mac to connect to the network, and have the hostname and wildcard subdomain resolve to the IP address it's been given. Is there a way to do this? Thanks!

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• Help to setup networking in Virtualbox Ubuntu Guest from Windows vista Host

  - by Ramesh Vel

  Hi, I am trying to access the MYSQL installed inside the Ubuntu Guest (In VirtualBox) from my Windows vista Host. It always says not able to find the given IP in the network. I have tried ping the ubuntu virtual machine, but it was not working. So i believe root cause for this is, some bridging between Host & Guest is not enabled. Since i am very new to Ubuntu, am not able to troubleshoot this. Can someone help me out? Cheers

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• Need to configure 4 Serial ports virtualbox guest win machine (my host is ubuntu 11.10)

  - by ubu

  I have an application that run's on winNT and requires the APCI-7500 card (a 4-multiport serial card), so I've installed the winNT thru virtualbox, but as i try to configure the serial ports I notice that virtualbox shows only 2 serial ports, only 2 tabs in the ports configuration section.How can I add the other 2 ports and configure them. My host is ubuntu 11.04 My guest is winNT My virtualbox version is 4.0.4_OSEr70112 I'll appreciate any help. Thanks in advance. I've followed these threads but still get no light in this issue How to access serial ubuntu host serial port on VirtualBox guest OS Can't access host serial port on VirtualBox Winxp

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• How to share a VPN connection in a VMWare Guest VM with the Host

  - by Jonathan

  The need - This question is relevant for all of those who want to bypass their corporate's annoying VPN, and access their work/corporate network from their private computer, especially if the corporate VPN client software can't run on their private computer. Homework: this question is very similar to this one and this one, which aren't answered :( The challange - Can't run the corporate VPN client from the private computer, so converted the work laptop to a VMWare Virtual Machine. The VPN client is working fine inside the Guest VM, now we want to share it with the Host (the private computer) The specs: * The private computer (Host OS) is Mac OS X Lion 64bit * The corporate laptop (Guest VM) is WinXP 32bit, running in Bridged network mode * The VPN client on the Guest VM is is Checkpoint SecuRemote NGX R60 HFA03 * While the VPN is running in the Guest VM, the Host can still ping the Guest and vice versa

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• Hyper-V Windows Guest Isletim Sistemleri için E-Business Suite R12 Sertifikasi Yayinlandi

  - by TUFEKCIOGLU,FATIH

  Windows Server 2012 Hyper-V sanal makinalarinda guest isletim sistemi olarak çalisan Windows Server 2008 (32-bit) ve Windows Server 2008 R2 için Oracle E-Business Suite Release 12 (12.1) sertifikasi yayinlandi. Hyper-V, Microsoft Windows sunucularda bulunan dahili bir özelliktir ve sanallastirilmis ortamlar olusturmaya ve yönetmeye olanak saglar. Bu sertifika ile E-Business Suite, yukarida belirtilen Windows sanallastirilmis guest isletim sistemleri üzerinde desteklenmektedir. Referanslar : •Note 761567.1 - Oracle E-Business Suite Installation and Upgrade Notes Release 12 (12.1.1) for Microsoft Windows Server (32-bit)•Note 1188535.1 - Migrating Oracle E-Business Suite R12 to Microsoft Windows Server 2008 R2•Note 1563794.1 - Certified Software on Microsoft Windows Server 2012 Hyper-V•Windows Server Hyper-V Overview Orjinal Kaynak (Original Source) : Steven Chan Oracle Blog : https://blogs.oracle.com/stevenChan/entry/e_business_suite_r12_certified

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• Virtual PC (XPMode) - How to access Webserver on guest from host

  - by sannoble

  I have Windows XP running inside Windows 7 via Virtual PC (XPMode) and installed Zend Server CE on the virtual XP guest. The webserver is running and can be accessed on the guest, but I cannot access the webserver from the Win7 host. I configured a static IP address and subnet of 255.255.255.0 on the guest and can ping this IP from the guest but not from the host. The other way it works fine, i.e. I can ping the host from the guest. I can also access the internet from the virtual XP guest. I tried different Network Options in the VirtualPC settings, but nothing helps. Googling the topic I couldn't find anything helpful yet. Any idea, what I could try to access the webserver on the virtual XP guest from the Win7 host?

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• Cannot access host from a virtualbox guest using bridged adapter

  - by David Dai

  I have a windows 7 host with firewall turned off. And I have a windowsXP guest running on Virtualbox 4.2.4r81684. In my windowsXP guest I tried to connect to the FTP server on my host machine(which used to work well) but it didn't work. I tried to ping my host machine, but it didn't work either. Then I tried to ping my guest from host, it worked well. my guest ip is :192.168.1.95 my host ip is : 192.168.1.9 route table on guest machine is this: C:\Documents and Settings\wenlong>route PRINT =========================================================================== Interface List 0x1 ........................... MS TCP Loopback interface 0x2 ...08 00 27 66 54 6c ...... AMD PCNET Family PCI Ethernet Adapter #2 - Packe t Scheduler Miniport =========================================================================== =========================================================================== Active Routes: Network Destination Netmask Gateway Interface Metric 0.0.0.0 0.0.0.0 192.168.1.1 192.168.1.95 20 127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1 192.168.1.0 255.255.255.0 192.168.1.95 192.168.1.95 20 192.168.1.95 255.255.255.255 127.0.0.1 127.0.0.1 20 192.168.1.255 255.255.255.255 192.168.1.95 192.168.1.95 20 224.0.0.0 240.0.0.0 192.168.1.95 192.168.1.95 20 255.255.255.255 255.255.255.255 192.168.1.95 192.168.1.95 1 Default Gateway: 192.168.1.1 =========================================================================== Persistent Routes: None arp cache is this: C:\Documents and Settings\wenlong>arp -a Interface: 192.168.1.95 --- 0x2 Internet Address Physical Address Type 192.168.1.1 00-26-f2-60-3c-04 dynamic 192.168.1.9 90-e6-ba-c2-90-2f dynamic It's strange because there was no problem days before and I didn't make any changes to the setting. could anybody help? PS. the guest can communicate with other machines in the LAN(for example 192.168.1.114) ok. it just cannot connect to the host machine.

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• Debian Squeeze Linux 9p virtfs guest mount failure

  - by Tero Kilkanen

  First some background information on the server: Host OS: Debian Linux Squeeze + qemu-kvm version 1.0+dfsg-8~bpo60+1 Guest OS: Debian Linux Squeeze I use qemu-kvm via libvirt. I have set up 9p VirtFS with the following in Guest's XML config: <filesystem type='mount' accessmode='passthrough'> <source dir='/srv/www'/> <target dir='wwwdata'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/> </filesystem> That is, I want to share /srv/www to the guest OS using mount tag wwwdata. When I try to mount the VirtFS share from the guest, I get an error message: root@server:~# mount -t 9p -o trans=virtio,version=9p2000.L2 wwwdata /srv/www/ mount: wwwdata: can't read superblock I also tried virtfs target dir/mount_tag www at first. I got the same error message. However, I was able to mount the VirtFS share using mount tag www1111, or www1 or similar. Some more notes on this one. dmesg doesn't show anything useful either in guest or the host. The only sign is this entry in the guest dmesg: [ 36.054936] Installing v9fs 9p2000 file system support Does anyone know how to get this working correctly? Google gives no useful information on this issue; I've tried several searches.

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• Online resizing of kvm guest root filesystem?

  - by Bittrance

  I have a Linux guest that uses an LVM volume directly as root file system (that is, there is no partition table). libvirt config looks thus: <os> <type arch='x86_64' machine='rhel6.4.0'>hvm</type> <kernel>/boot/vmlinuz-X.Y.Z.el6.x86_64</kernel> <initrd>/boot/initramfs-X.Y.Z.el6.x86_64.img</initrd> <cmdline>console=ttyS0 root=/dev/vda</cmdline> <boot dev='hd'/> </os> <disk type='block' device='disk'> <driver name='qemu' type='raw' cache='none' io='native'/> <source dev='/dev/vg/guest'/> <target dev='vda' bus='virtio'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> </disk> From inside the guest: $ mount /dev/vda on / type ext4 (rw) proc on /proc type proc (rw) sysfs on /sys type sysfs (rw) devpts on /dev/pts type devpts (rw,gid=5,mode=620) tmpfs on /dev/shm type tmpfs (rw) none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw) Is it possible to resize the guest's root partition without rebooting the guest? Just doing lvextend on the host and resize2fs from the guest does not seem to be enough.

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• A space-efficient guest filesystem for grow-as-needed virtual disks ?

  - by Steve Schnepp

  A common practice is to use non-preallocated virtual disks. Since they only grow as needed, it makes them perfect for fast backup, overallocation and creation speed. Since file systems are usually based on physical disks they have the tendency to use the whole area available1 in order to increase the speed2 or reliability3. I'm searching a filesystem that does the exact opposite : try to touch the minimum blocks need by an aggressive block reuse. I would happily trade some performance for space usage. There is already a similar question, but it is rather general. I have very specific goal : space-efficiency. 1. Like page caching uses all the free physical memory 2. Canonical example : online defragmentation 3. Canonical example : snapshotting

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• usb devices unacessible

  - by Dustin

  I have a funny thing happening with my USB devices. They are detected and show up as they should but I cannot write to them, I can read the files in them. I cannot change the Group folder access. It keeps reverting to none when I try change it. However when I start a guest session and copy a screen shot to the USB I can, but cannot in my regular administration session. Why cannot I change the option and why does it behave properly in a guest session but not normally? Anyone know how to help me out here? I am using Ubuntu 12.04, 32-bit.

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• VirtualBox: Start Firefox in Ubuntu via a Windows script?

  - by SpaceRook

  I am using VirtualBox to run Ubuntu 12.04 as a guest in a Windows 7 host. I would like execute a command in Windows that will launch Ubuntu's Firefox. I tried VirtualBox's VBoxManage guestcontrol function. The command seems to do something, but nothing seems to happen in Ubuntu: C:\VirtualBox>VBoxManage.exe guestcontrol MyVirtualMachineUbuntu exec --image "/usr/bin/firefox" --username bob --password password --wait-stdout --verbose Waiting for guest to start process ... Waiting for process to exit ... Exit code=1 (Status=500 [successfully terminated]) The /usr/bin/firefox command works when I run it in Ubuntu. Also, with guestcontrol, I can successfully call /bin/ls. But I can't actually get a major program like Firefox to run. Any ideas? Thanks.

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