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  • How to hide a program that is running on a virtual machine?

    - by Femto Trader
    Some softwares contain tests to see if they are running on a virtual machine. It's very unpleasant to see alert messages such as "Sorry, this application cannot run under a Virtual Machine." and have your software stopped! There is a lot of legal reasons to override such tests. Moreover such limitations are (most of the time) not written in User License Agreement. So... how to hide a program that is running on a virtual machine? I'm using a Virtual Private Server (VPS) with Hyper-V... I'm administrator of the Operating System (Windows 2003) installed on this VPS, not administrator of Hyper-V.

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  • VPN server on Windows Server 2008 for a small office

    - by cmbrnt
    I'm going to refurbish the IT-infrastructure for a small organization with one single office, and I'm not sure what VPN server to use. In your opinion, would the built-in Windows Server 2008 VPN server suffice or are there any specific problems with it as opposed to, for example, OpenVPN? I'd rather run a Windows native VPN server, but if there are few (preferably free) good alternatives, I could install VMware ESXi and virtualize both Windows and an OpenVPN-server. By the way, because of a low budget this office runs a solution with only one physical server. Any advice would be great to help me grasp this field of which I'm quite a novice. Thank you!

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  • xl create doesn't bring up console

    - by ineff
    I've tryed to run VM in Xen 4.2 using xl command (for what I get this should be standard toolstack, while xm is deprecated). In this case I've the following configuration file kernel = '/media/home_separata/domU_kernel/boot/vmlinuz-linux' ramdisk = '/media/home_separata/domU_kernel/boot/initramfs-linux.img' name = "domU_Arch_linux" memory = "512" root = '/dev/xvda1 ro' disk = ['file:/media/home_separata/domU_kernel/arch_linux_kernel.img,xvda1,w'] vif = ['mac=aa:::10:11:f1,ip=192.168.0.2,bridge=xenbr0'] when I try to start the virtual machine with xl create it seems it works (it also bring up the vif interfaces) but if I try to connect via xl console it gives an error: xenconsole: Could not read tty from store: No such file or directory the fun fact is that the I've the problem inverse using xend/xm (in that case xend doesn't bring up vif interfaces but activate console). Does anyone have any suggestion?

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  • Making a bootable image of linux Red Hat Ent Es for a VM

    - by djshortbus
    I have a old server running Red Hat that has some valuable apps installed. I would like to create a bootable image of the drive and install it in a VM on a newer server. i am trying to avoid reinstalling Red Hat the apps and data. Any useful links or advice would be greatly appreciated.(Not yet decided on the VM Software)

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  • High CPU Steal percentage on Amazon EC2 Instance

    - by Aditya Patawari
    I am experiencing high CPU steal percentage in a Amazon EC2 large instance. I know it means that my virtual CPU is waiting on the real CPU of the machine for time. My question is that what can I do to reduce this percentage and get maximum out of the CPU? Steal percentage is consistently at 20%. System load crosses 10 when this happens. I have checked memory and network and I am sure that they are not the bottleneck. Is that normal for such environment? Also are there any system level optimization techniques for reducing steal percentage form the virtual instance? avg-cpu: %user %nice %system %iowait %steal %idle 52.38 0.00 8.23 0.00 21.21 18.18

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  • kvm process has too large a memory footprint on host

    - by gucki
    I'm using latest ubuntu quantal and start a kvm guest which should have 2048 MB of memory. Now after a few hours I can see that the kvm process of this guest is around 2700 MB, so 700 MB more than the guest should be able to consume. I mean a small overhead like 1% would be ok, but not 30%?! root 8631 74.0 22.2 4767484 2752336 ? Sl Nov07 512:58 kvm -cpu kvm64 -smp sockets=1,cores=2 -cpu kvm64 -m 2048 -device virtio-blk-pci,drive=drive-virtio0,id=virtio0,bus=pci.0,addr=0xa,bootindex=100 -drive file=rbd:data/vm-disk-1,if=none,id=drive-virtio0,cache=writeback,aio=native -device virtio-net-pci,netdev=net0,bus=pci.0,addr=0x12,id=net0,mac=02:7a:86:e6:1a:6c,bootindex=200 -netdev type=tap,id=net0,vhost=on -usbdevice tablet -nodefaults -enable-kvm -daemonize -boot menu=on -vga cirrus root 8694 0.0 0.0 0 0 ? S Nov07 0:00 [kvm-pit/8631] How is this possible and how to prevent it?

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  • Virtualbox crashes quite often in Windows 8

    - by user1776158
    I just installed Windows 8 on my computer. I got the ISO and the product key from my university so the software itself is sound. I use alot of virtual box. And ever since I moved to Windows 8, I have noticed that virtual box crashes more often. In particular, it is very very bad at opening multiple guests. My CPU usage will be at like 20% and I only have 3 guests open and my entire computer just freezes. Cursor and all. In Windows 7, I was able to open like 6 (not that I ever needed to) and really push my CPU. I havent experience any other issues with Windows 8 yet. Has anyone encountered this? Thanks!

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  • Windows 7 Virtual PC + Linux Ubuntu

    - by Daniel Henry
    I've installed Ubuntu inside a virtual machine running on Windows 7's Virtual PC. One thing I've noticed right away is that it has to capture the mouse and not all the hardware works as expected. I didn't have such problems in my virtual Windows XP. Is there anything I need to do to either Virtual PC or within Ubuntu that will get them to cooperate as well as Windows XP seems to?

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  • Starting VMs with an executable with as low overhead as possible

    - by Robert Koritnik
    Is there a solution to create a virtual machine and start it by having an executable file, that will start the machine? If possible to start as quickly as possible. Strange situation? Not at all. Read on... Real life scenario Since we can't have domain controller on a non-server OS it would be nice to have domain controller in an as thin as possible machine (possibly Samba or similar because we'd like to make it startup as quickly as possible - in a matter of a few seconds) packed in a single executable. We could then configure our non-server OS to run the executable when it starts and before user logs in. This would make it possible to login into a domain.

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  • Virtualise Excel in a browser

    - by Macros
    Is it possible to give users access to a virtualised instance of Excel - I don't want to give them access to a full OS (although this will clearly be running in the background, all they can access is Excel - they don't even see any other screens)? Secondly, if it is possible, is it possible to do within a browser? Edit I am building a system which is designed to test candidates skills in Excel and for this reason needs to use the full desktop version and not a web app. I don't want to have to ensure Excel is installed on the client machine as there will be issues around differing versions and security as the workbook(s) that are used in the test use VBA extensively to customise and mark the exercises. Ideally my web app would be able to open a session to the server which then just puts the user into an instance of Excel without ever seeing a desktop. I would also need to be able to pass in command line parameters in order to define which workbook to open and also pass in a unique token to identify the user

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  • IT merger - self-sufficient site with domain controller VS thin clients outpost with access to termi

    - by imagodei
    SITUATION: A larger company acquires a smaller one. IT infrastructure has to be merged. There are no immediate plans to change the current size or role of the smaller company - the offices and production remain. It has a Win 2003 SBS domain server, Win 2000 file server, linux server for SVN and internal Wikipedia, 2 or 3 production machines, LTO backup solution. The servers are approx. 5 years old. Cisco network equippment (switches, wireless, ASA). Mail solution is a hosted Exchange. There are approx. 35 desktops and laptops in the company. IT infrastructure unification: There are 2 IT merging proposals. 1.) Replacing old servers, installing Win Server 2008 domain controller, and setting up either subdomain or domain trust to a larger company. File server and other servers remain local and synchronization should be set up to a centralized location in larger company. Similary with the backup - it remains local and if needed it should be replicated to a centralized location. Licensing is managed by smaller company. 2.) All servers are moved to a centralized location in larger company. As many desktop machines as possible are replaced by thin clients. The actual machines are virtualized and hosted by Terminal server at the same central location. Citrix solutions will be used. Only router and site-2-site VPN connection remain at the smaller company. Backup internet line to insure near 100% availability is needed. Licensing is mainly managed by larger company. Only specialized software for PCs that will not be virtualized is managed by smaller company. I'd like to ask you to discuss both solutions a bit. In your opinion, which is better from the operational point of view? Which is more reliable, cheaper in the long run? Easier to manage from the system administrator's point of view? Easier on the budget and easier to maintain from IT department's point of view? Does anybody have any experience with the second option and how does it perform in production environment? Pros and cons of both? Your input will be of great significance to me. Thank you very much!

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  • Is it possible to run a "Windows Server 2008 R2 SP1 Hyper-V Virtual Machine" on Windows 7x64 Pro machine?

    - by tbone
    Specifically, I want to run this: http://www.microsoft.com/en-us/download/details.aspx?displaylang=en&id=27417 This download contains a three Windows Server 2008 R2 SP1 Hyper-V Virtual Machine set for evaluating and demonstrating Office 2010, SharePoint 2010 and Project Server 2010. System requirements Supported operating systems: Windows Server 2008 R2 Additionally you will need: •Windows Server 2008 R2 (SP1 recommended) with the Hyper-V role enabled. •Drive Formatting: NTFS •Processor: Intel VT or AMD-V capable •RAM: 8 GB or more recommended •Hard disk space required for install: 100 GB ------------------------- So, the above text seems to indicate that you need a physical Windows 2008 Server (r2) server running, but from the googling I've done on the subject I've yet to come across a discussion that definitively answers the question. Many posts I've read seem to indicate it might be possible to run it on Windows 7 using one of the following: VirtualBox, Windows Virtual PC, VMWare but I'm not entirely sure.

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  • Centos VM serving multiple public IP: how to configure network interface?

    - by Glasnhost
    I have a Centos 5.6 VM (Vsphere client) already responding to two different public IPs on eth0 and eth0:1 and I'm trying to add eth0:2. I copied the eth0 config file and restarted the network service. I don't understand which other steps are needed... ifconfig eth0 Link encap:Ethernet HWaddr 00:40:46:B9:00:41 inet addr:10.1.12.10 Bcast:10.1.12.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:163371837 errors:77 dropped:0 overruns:0 frame:0 TX packets:168210961 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1891221045 (1.7 GiB) TX bytes:855899500 (816.2 MiB) Interrupt:59 Base address:0x2000 eth0:1 Link encap:Ethernet HWaddr 00:40:46:B9:00:41 inet addr:10.1.12.11 Bcast:10.1.12.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:59 Base address:0x2000 eth0:2 Link encap:Ethernet HWaddr 00:40:46:B9:00:41 inet addr:10.1.12.12 Bcast:10.1.12.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:59 Base address:0x2000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:188976973 errors:0 dropped:0 overruns:0 frame:0 TX packets:188976973 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:2015642664 (1.8 GiB) TX bytes:2015642664 (1.8 GiB) more /etc/resolv.conf nameserver 10.1.12.1 route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 10.1.12.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0 0.0.0.0 10.1.12.1 0.0.0.0 UG 0 0 0 eth0

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  • Xen command xl doesn't create a vm but xend/xm does

    - by ineff
    I'm a newbie to Xen, and I've recently installed Xen 4.2 by sources on my system. I've found a strange thing I've a VM when I start it via the command "xm create machine.cfg" all work fine, but if I use "xl create machine.cfg" it gives me the following error xc: error: panic: xc_dom_core.c:442: xc_dom_alloc_segment: segment ramdisk too large (0x4ba 0x2000 - 0x1bd9 pages): Out of memory libxl: error: libxl_dom.c:208:libxl__build_pv xc_dom_build_image failed: Invalid argument cannot (re-)build domain: -3 xenconsole: Could not read tty from store: No such file or directory What could be the problem? Any idea?

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  • Why is connecting to external FTP sites slow on virtual 2008 R2 and not on host?

    - by subkamran
    I have Windows Server 2008 R2 installed as a virtual guest in my Windows 7 host via VirtualBox 4.0. I did this to move my development activity to a controlled environment that doesn't affect my host OS when I don't want to develop. The problem I have is that when I try to connect to my shared hosting FTP, it's slow as hell on the virtual OS but perfectly fast on the host. I tried: Disabling Windows Firewall Trying several different FTP clients Anyone else have this issue?

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  • Can I use VT-D with a windows host for a VM?

    - by Journeyman Geek
    I've got a fairly beefy gaming system that I also run occational virtual machines on. It runs windows 8 and the built in hyper V virtual machine software at the moment and has a core i7 3770 (which unlike the unlocked model, should support VT-D), an Asus P8Z77V and a gforce 660 video card(also asus). I figure that if I could use VT-D I could add a cheap dedicated 3d card for a VM, in case I wanted somewhat more than the 'basics'. I know KVM and Xen support this to some level on linux, but can I do so on windows? I'm open to switching VM software if need be.

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  • How to properly set CPU Units for OpenVz VEs

    - by gucki
    According to all the sources I read (openvz wiki, various mailinglists, forums, ..) the values of the cpuunits settings are relative to each other. So when all are equal and the system is busy, all receive the same cpu share. But something still puzzles me with that: why is there a tool "vzcpucheck" which shows "the power of the node/ host": Current CPU utilization: 18000 Power of the node: 880001 Why is there (do I need) an absolute number when all settings are only relative? Shouldn't those two settings result in exactly the same? ve1: 1 ve2: 1 ve3: 1 = 3 ve1: 293334 ve1: 293334 ve1: 293334 = 880001 (power of the node) What's the difference?

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  • can't register a soft phone to asterisk11

    - by Tom
    I have a VM (on oracle vbox) running Fedora17. I've installed asterisk 11 on it from sources. I've followed the wiki for installation (https://wiki.asterisk.org/wiki/display/AST/Creating+SIP+Accounts) to the letter. The ip on the VM machine running fedora is 192.168.1.7 and I can ping it from the host machine (Ubuntu 12.04), which is at 192.168.1.2 I've tried registering with ekiga with the following settings: user: [email protected]. Password: verysecretpassword registar: 192.168.1.7 but I'm getting an error "transport fail". Also, while trying to register I'm logged in to the asterisk CLI with verbose level 3 and debug level 4 and nothing appears. some more relevant data: I've added the following code to the end of my sip.conf.sample file: [demo-alice] type=friend host=dynamic secret=verysecretpassword context=users deny=0.0.0.0/0 permit=192.168.1.0/255.255.255.0 [demo-bob] type=friend host=dynamic secret=othersecretpassword context=users deny=0.0.0.0/0 permit=192.168.1.0/255.255.255.0 After I changed the sip.conf.sample file, I've created a copy of it and named it sip.conf. then I logged in to the asterisk CLI and typed sip reload. Then I'm trying to register and ekiga client from my host machine at 192.168.1.2 but it doesn't work and nothing appears on the asterisk CLI while in verbose mode level 3. BTW, If there is missing information about my question, please don't close it. comment about what you need to know and I'll edit it in to the question. tnx.

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  • Setting up virtual network in VMware workstation

    - by Saif Bechan
    I am playing around with VMware workstation and am trying to set up a small virtual network. I am having a little trouble with this I hope somebody can help me out. I want to have all the different virtual machines to have different internal IP adresses so I can ping them SSH etc, from within my windows machine. I am directly connected to the internet without a router, so using a bridged connection does not seem to work. The other options NAT and host-only do not seem to work also. I think i need to create a new adapter. I am testing this out with a virtual image of linux debain 5.0 lenny. I have WMware Workstation 7 with virtual network editor. Can anyone guide me in the right direction.

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  • Resource Pool sharing in Hyper-V Virtual Machines

    - by user67905
    I understand that we can install Hyper-V on one server and run a number of Virtual Machines on it, upto the limit of resources of that server. I want to know if it is possible to install Hyper-V lumped on two or more servers, so that the Virtual Machines can use the underlying resources pool of both the servers? And also if that same is possible for an “n” number of servers, instead of just 2 servers.

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  • Physical Debian to VMWare: vmware-converter, dd-image or otherwise?

    - by Dabu
    we have two debian Lenny production machines, both running larger commercial websites. Now these machines need to be moved, and in the process, they need to be virtualized to VMWare ESX. If you believe the internet information, there are several ways to accomplish this. The easiest for us would be to use our weekly dd backup where the whole disk, however, I have no experience with this kind of technology and if it is really possible. The second best way would be via an application on the source machine virtualizing it and generating an ESX compatible VM. However, the software is beta and unsupported, and after installation, nothing really works (the /etc/init.d/vmware-converter script doesn't actually do anything, start and stop reply with success messages, yet ps shows that there are no new processes). The worst way with the most work would be to install a new machine and set it up manually, copying files and databases as needed. This part is clear in it's execution, and my question(s) do not touch this. Is my 1st way possible? Has anyone done this yet, or better, has a page with instructions? Or is there a help page that explains how to correctly install, run and use the vmware-converter tool using a Debian installation (it's possible that I dod something wrong during installation already)? Thank you.

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