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  • Setting up Relays in Windows

    - by Auditor
    I'm trying to setup a pivoting relay with netcat on Windows, replicating a scenario easily possible by using pipes in Linux. Assume machine A can route to machine B and machine B can route to machine C. If machine A needs to route to machine C, we can setup a relay on machine B which can pivot data back and forth for us using command redirectors and spl filetype pipe. Assume: machine C has nc -nlvp 3306 -e cmd.exe machine A has nc -nlvp 80 IF machine B was Linux we could have done mkfifo pipe nc -nv 127.0.0.1 80 0<pipe | nc -nv 127.0.0.1 3306 1>pipe so on machine B if we do nc -nv 127.0.0.1 80 0<&4 | nc -nv 127.0.0.1 3306 1>&4 Per this site, I should be able to achieve what I can with Linux, but unfortunately it is not working.

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  • Why is my machine unable to mount my SMB drives ("CIFS VFS: Error connecting to socket. Aborting operation", return code -115)?

    - by downbeat
    I have a machine running Precise (12.04 x64), and I cannot mount my SMB drives (I have 3, we'll call them public, private and download). It used to work (a week or two ago) and I didn't touch fstab! The machine hosting the shares is a commercial NAS, and I'm not seeing anything that would indicate it's an issue with the NAS. I have an older machine which I updated to Precise at the same time (both fresh installed, not dist-upgrade), so should have a very similar configuration. It is not having any problems. I am not having problems on windows machines/partitions either, only one of my Precise machines. The two machines are using identical entries in fstab and identical /etc/samba/smb.conf files. I don't think I've ever changed smb.conf (has never mattered before). My fstab entries all basically look like this: //10.1.1.111/public /media/public cifs credentials=/home/downbeat/.credentials,iocharset=utf8,uid=downbeat,gid=downbeat,file_mode=0644,dir_mode=0755 0 0 Here's the dmesg output on boot: [ 51.162198] CIFS VFS: Error connecting to socket. Aborting operation [ 51.162369] CIFS VFS: cifs_mount failed w/return code = -115 [ 51.194106] CIFS VFS: Error connecting to socket. Aborting operation [ 51.194250] CIFS VFS: cifs_mount failed w/return code = -115 [ 51.198120] CIFS VFS: Error connecting to socket. Aborting operation [ 51.198243] CIFS VFS: cifs_mount failed w/return code = -115 There are no other errors I see in the dmesg output. Originally when I ran 'testparm -s', the output contained these lines ERROR: lock directory /var/run/samba does not exist ERROR: pid directory /var/run/samba does not exist Here's the samba related programs I have installed: $ dpkg --list|grep -i samba ii libpam-winbind 2:3.6.3-2ubuntu2.3 Samba nameservice and authentication integration plugins ii libwbclient0 2:3.6.3-2ubuntu2.3 Samba winbind client library ii nautilus-share 0.7.3-1ubuntu2 Nautilus extension to share folder using Samba ii python-smbc 1.0.13-0ubuntu1 Python bindings for Samba clients (libsmbclient) ii samba-common 2:3.6.3-2ubuntu2.3 common files used by both the Samba server and client ii samba-common-bin 2:3.6.3-2ubuntu2.3 common files used by both the Samba server and client ii winbind 2:3.6.3-2ubuntu2.3 Samba nameservice integration server $ dpkg --list|grep -i smb ii dmidecode 2.11-4 SMBIOS/DMI table decoder ii libsmbclient 2:3.6.3-2ubuntu2.3 shared library for communication with SMB/CIFS servers ii python-smbc 1.0.13-0ubuntu1 Python bindings for Samba clients (libsmbclient) ii smbclient 2:3.6.3-2ubuntu2.3 command-line SMB/CIFS clients for Unix ii smbfs 2:5.1-1ubuntu1 Common Internet File System utilities - compatibility package $ dpkg --list|grep -i cifs ii cifs-utils 2:5.1-1ubuntu1 Common Internet File System utilities ii libsmbclient 2:3.6.3-2ubuntu2.3 shared library for communication with SMB/CIFS servers ii smbclient 2:3.6.3-2ubuntu2.3 command-line SMB/CIFS clients for Unix I originally noticed that my other machine had "libpam-winbind" and "nautilus-share" installed and the machine with the issue did not. Installing those two packages solved my errors with 'testparm -s', but did not fix my issue. Finally, I tried to purge and reinstall these packages smbclient smbfs cifs-utils samba-common samba-common-bin Still no luck. Again, it used to work; now it doesn't. Very similarly configured machine works (but some packages are out of date on the working machine). The NAS has only one interface/IP address, nmblookup works to find it's IP from it's hostname (from the machine with the issue) and it responds to a ping. Please any help would be great. I've been searching on AskUbuntu, SuperUser, ubuntuforums and plain old search engines for a week now and it's driving me crazy!

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  • what's the UNC path for local computer from a remote machine ?

    - by KaluSingh Gabbar
    I am writing a small utility program in IronPython to install applications on remote machine using managementclass which uses WMI. Now, the script would install an application on Machine_B from Machine_A, it works fine as long as you have the msi file on the local drive of the Target machine (Machine_B, in this case). I want to be able to do same thing with .msi file being on the Host (Machine_A) machine. network_scope = r"\\%Machine_B\root\cimv2" scope = ManagementScope(network_scope, options) scope.Connect() mp = ManagementPath("Win32_Product") ogo = ObjectGetOptions() mc = ManagementClass(scope, mp, ogo) inParams = mc.GetMethodParameters ("Install") inParams["PackageLocation"] = r"C:\installs\python-3.1.1.msi" inParams["AllUsers"] = True retVal = mc.InvokeMethod ("Install", inParams, None) print retVal ["ReturnValue"].ToString() PROBLEM : [Machine A] --- Where I am running the script, and want to host the .msi file [Machine B] --- where I want to install the application So, How can I define the UNC path for local machine ? what will be inParams["PackageLocation"] = ??

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  • How do I deploy a utility with ocx dependency to a test machine without registering the ocx?

    - by Brandon
    I have a test utility that depends upon an ocx file that is installed/registered on my development machine. We'd like to run this tool on a test machine without polluting the machine with any unnecessary files. Nothing should be installed except the target machine software. Running the tool on a network drive or from a stand-alone directory copied to the test machine would be ideal. But, registering the ocx on the test machine is out of the question. Placing the ocx file in the same directory as the exe doesn't work. No matter what it still gives me this error--"The application has failed to start because the application configuration is incorrect. Reinstalling the application may fix the problem." What else can I try?

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  • Virtual Machines List from PowerShell vs PowerShell ISE and PowerGUI

    - by slybloty
    I am confused to why I have different information based on where I try to retrieve it from. I have 3 Windows 2012 servers (G0, G1, and G2) running Hyper-V. The following situation is captured from one server which I use to run scripts and control the others. What I'm trying to do is to get a list of the virtual machines in existence on these 3 machines: Using PowerGUI and PowerShell ISE: PS > Get-VMHost | select name Name ---- G0.nothing.com G2.nothing.com G1.nothing.com PS > Get-VMHost | Get-VM | select name Name ---- VM1628856-4 VM1628856-2 VM1628856-6 VM1628856-3 VM1628856-1 VM1628856-5 Using PowerShell: PS > Get-VMHost | select name Name ---- G0 PS > Get-VM Name State CPUUsage(%) MemoryAssigned(M) Uptime Status ---- ----- ----------- ----------------- ------ ------ VM1107610-1 OffCritical 0 0 00:00:00 Cannot connect to virtual machine configuration storage VM1390728-1 OffCritical 0 0 00:00:00 Cannot connect to virtual machine configuration storage VM1393540-1 OffCritical 0 0 00:00:00 Cannot connect to virtual machine configuration storage VM1393540-10 OffCritical 0 0 00:00:00 Cannot connect to virtual machine configuration storage VM1393540-2 OffCritical 0 0 00:00:00 Cannot connect to virtual machine configuration storage VM1393540-3 OffCritical 0 0 00:00:00 Cannot connect to virtual machine configuration storage VM1393540-4 OffCritical 0 0 00:00:00 Cannot connect to virtual machine configuration storage VM1393540-5 OffCritical 0 0 00:00:00 Cannot connect to virtual machine configuration storage VM1393540-6 OffCritical 0 0 00:00:00 Cannot connect to virtual machine configuration storage VM1393540-7 OffCritical 0 0 00:00:00 Cannot connect to virtual machine configuration storage VM1393540-8 OffCritical 0 0 00:00:00 Cannot connect to virtual machine configuration storage VM1393540-9 OffCritical 0 0 00:00:00 Cannot connect to virtual machine configuration storage VM1833022-1 OffCritical 0 0 00:00:00 Cannot connect to virtual machine configuration storage My main concern is that I don't have reliable information from the 3 tools. The Hyper-V Manager application shows the same list as the PowerShell does. But if I run my scripts from the other two tools, which is what I mostly do, I don't have the same information available, therefore I can't manipulate the same VMs. I've also noticed that the Virtual Machine Manager shows the same list of VMs as the first two tools, PowerGUI and PowerShell ISE. Which information is valid? And how can I retrieve the correct list of VMs? EDIT 1 The $env:psmodulepath value: PS > $env:psmodulepath C:\Users\administrator\Documents\WindowsPowerShell\Modules; C:\Windows\system32\WindowsPowerShell\v1.0\Modules\; C:\Program Files (x86)\Microsoft SQL Server\110\Tools\PowerShell\Modules\; C:\Program Files\Microsoft System Center 2012\Virtual Machine Manager\bin\Configuration Providers\; C:\Program Files\Microsoft System Center 2012\Virtual Machine Manager\bin\psModules\; C:\Program Files (x86)\QLogic Corporation\QInstaller\Modules EDIT 2 PowerShell is using this Hyper-V module: C:\Windows\Microsoft.Net\assembly\GAC_MSIL\Microsoft.HyperV.PowerShell\v4.0_6.3.0.0__31bf3856ad364e35\Microsoft.HyperV.PowerShell.dll And PowerGUI is using this one: C:\Windows\System32\WindowsPowerShell\v1.0\Modules\Hyper-V\Hyper-V.psd1 If I try to load the module used by PowerShell onto PowerGUI I still get the same different results. How can I receive the correct information listed under Hyper-V using PowerGUI or PowerShell ISE?

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  • ASP.NET/IIS Fix: The 'Microsoft.Jet.OLEDB.4.0' provider is not registered on the local machine.

    - by Ken Cox [MVP]
    In my latest ASP.NET project, I refresh the sample data using an Excel spreadsheet from the client. After upgrading to Windows Server 2008 R2, I suddenly discovered this error: The 'Microsoft.Jet.OLEDB.4.0' provider is not registered on the local machine. The error message is totally bogus! The problem is that I’m running IIS on a 64-bit machine and the ol’ OLEDB thingy just isn’t up with the times. To fix it, go into the IIS Manager and find out which Application Pool the site is using. In my case...(read more)

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  • Linq-to-sql Compiled Query returns object NOT belonging to submitted DataContext ?

    - by Vladimir Kojic
    Compiled query: public static class Machines { public static readonly Func<OperationalDataContext, short, Machine> QueryMachineById = CompiledQuery.Compile((OperationalDataContext db, short machineID) => db.Machines.Where(m => m.MachineID == machineID).SingleOrDefault() ); public static Machine GetMachineById(IUnitOfWork unitOfWork, short id) { Machine machine; // Old code (working) //var machineRepository = unitOfWork.GetRepository<Machine>(); //machine = machineRepository.Find(m => m.MachineID == id).SingleOrDefault(); // New code (making problems) machine = QueryMachineById(unitOfWork.DataContext, id); return machine; } It looks like compiled query is returning result from another data context [TestMethod] public void GetMachinesTest() { using (var unitOfWork = IoC.Get<IUnitOfWork>()) { // Compile Query var machine = Machines.GetMachineById(unitOfWork, 3); } using (var unitOfWork = IoC.Get<IUnitOfWork>()) { var machineRepository = unitOfWork.GetRepository<Machine>(); // Get From Repository var machineFromRepository = machineRepository.Find(m => m.MachineID == 2).SingleOrDefault(); var machine = Machines.GetMachineById(unitOfWork, 2); VerifyHuskyHostMachine(machineFromRepository, 2, "Machine 2", "222222", "H400RS", "MachineIconB.xaml", false, true, LicenseType.Licensed, InterfaceType.HuskyHostV2, "10.0.97.2:8080", "10.0.97.2", 8080, "4.0"); VerifyHuskyHostMachine(machine, 2, "Machine 2", "222222", "H400RS", "MachineIconB.xaml", false, true, LicenseType.Licensed, InterfaceType.HuskyHostV2, "10.0.97.2:8080", "10.0.97.2", 8080, "4.0"); Assert.AreSame(machineFromRepository, machine); // FAIL } } If I run other (complex) unit tests I'm getting as expected: An attempt has been made to Attach or Add an entity that is not new, perhaps having been loaded from another DataContext. Another Important information is that this test is under TransactionScope! UPDATE: It looks like next link is describing similar problem (is this bug solved ?): http://social.msdn.microsoft.com/Forums/en-US/linqprojectgeneral/thread/9bcffc2d-794e-4c4a-9e3e-cdc89dad0e38

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  • Can I install two Ubuntu versions on the same machine?

    - by Abh
    Hello, I have Ubuntu 10.10 32 bit already installed on my machine..I am using MongoDB and it does not work properly with 32 bit machine. So I want to install 64 bit Ubuntu 10.10 on my system on another partition (so that I can have both 32 bit and 64 bit versions). Is it okay to install both 32 bit and 64 bit? I mean will it give any problems? On which partition should I install the 64 bit version? My partitions are as follows: Filesystem Size Used Avail Use% Mounted on /dev/sda1 37G 11G 25G 30% / none 1.4G 260K 1.4G 1% /dev none 1.4G 776K 1.4G 1% /dev/shm none 1.4G 244K 1.4G 1% /var/run none 1.4G 0 1.4G 0% /var/lock /dev/sda6 129G 73G 50G 60% /home /dev/sda7 127G 76G 45G 64% /vol Waiting for your replies.

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  • How do you differentiate between "box," "machine," "computer" and whatever else?

    - by Corey
    There seems to be a few terms for referring to a computer, especially in the tech world. Different terms seem to be used based on technical expertise. When talking with people with some technical knowledge, I'll refer to it as a machine. When talking to non-technical people (family, friends) I'll call it a computer. On the rare occasion I'm talking about servers, I might call it a box, but even then I'll probably still call it a machine. Is that just me, or do there exist rules already for what to call a computer?

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  • How do I prevent having to log in on 3 separate prompts every time I start my machine?

    - by JC
    Ubuntu 11.04 Natty Narwhal, Ubuntu Classic desktop Each time I start my machine, I have to log in 3 times. I spent a week in IRCFreenode#ubuntu and got nothing but condescension. I've searched on the official Ubuntu fora for similar problems, tried every recommendation, and still get 3 login screens. As a workaround, I have reset login such that I get a login screen at startup, which I'd prefer not to get since this machine is accessible by no one but me, physically. I have gone into System Preferences Passwords and Encryption Keys, set first 'Passwords: default' to 'Default' and unlocked it, and unlocked the 'Passwords: login' key, too. Next, since that changed nothing, I set 'Passwords: login' to 'Default', and checked to make sure it was still unlocked. Again, no change, still get 3 login prompts at startup. I've checked twice to insure that I am the owner of the files; I am. At the suggestion of several people in #ubuntu, I've deleted first one, then the other password key in 'Passwords and Encryption Keys'. Still get 3 login prompts. I changed from the Unity desktop to Ubuntu Classic. While that didn't fix the above problem, it is a much more elegant desktop than Unity, and I'll keep it. From what I've read, this seems to be a Seahorse issue, but beyond that, no one seems to have a solution that works. I'm lost. This shouldn't be this difficult or annoying. I'm trying to help our local Old Time music collective get their machines switched over to Ubuntu in order to save them some money which they can use to promote their DRM-free music. But from what I've seen of Ubuntu so far on my own machine, I can't really recommend that they make this switch. I hope to be proved wrong on that point. But as it stands, if I was out of town or out of country and they ran into a problem, they'd have no way of fixing it as they're all less experienced than even I am. I'm not trying to cast aspersions on Ubuntu or Linux, but it seems pretty clear that KNOWLEDGEABLE, HELPFUL support for Ubuntu is lacking barring any desire on the problem-experiencing-user's part to avoid condescension. Having worked with, and run, several non-profits over the past 20 years, I know that getting volunteers to act professionally can be like herding cats. But an organization's reputation can be denigrated by sarcastic behaviors on the part of those who serve, effectively, as its public face. Thank you all for your help and support. Now...does anyone have a solution to my problem?

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  • Why isn't there a python compiler to native machine code?

    - by user2986898
    As I understand, the cause of the speed difference between compiled languages and python is, that the first compiles code all way to the native machine's code, whereas python compiles to python bytecode, to be interpreted by the PVM. I see that this way python codes can be used on multiple operation system (at least in most cases), however I do not understand, why is not there an additional (and optional) compiler for python, which compiles the same way as traditional compilers. This would leave to the programmer to chose, which is more important to them; multiplatform executability or performance on native machine. In general; why are not there any languages which could be behave both as compiled and interpreted?

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  • How to get client machine ip address in custom realm? [on hold]

    - by Sumit
    I want to get client machine ip address in my custom Realm when client attempt to login basically here is detail requirement of project User having role 'Admin' can add new users and assign multiple roles and permission ,and at the same time specify list of ip address and countries to restrict them to access website. All these information i am storing in database. So basically till now i am using shiro default 'authc' filter but now i want ip address of client machine and get country from where request is coming and check it against database and then and then only allow access to website. Any help..? Thanks and regards

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  • How to connect to a WCF service using IP of the host machine where the service is hosted?

    - by Kumar
    I have a secured WCF service (https://<MachineName>:sslport/services) self hosted in a machine. Different instances of same service are deployed in differnt machines. From a client app, I am able to connect to theses services through code, i.e. using ChannelFactory() with the same endpoint address. But if I try to access the service using the endpoint address as https://<ipAddress>:sslport/services replacing machines name with machine IP address, I am getting some error stating "could not establish trust relationship". I know this is an error caused by SSL certificate that it could not establish a trust relationship. Are there any settings or any possibilities to make this work?

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  • Why is not there a python compiler to native machine's code?

    - by user2986898
    As I understand, the cause of the speed difference between compiled languages and python is, that the first compiles code all way to the native machine's code, whereas python compiles to python bytecode, to be interpreted by the PVM. I see that this way python codes can be used on multiple operation system (at least in most cases), however I do not understand, why is not there an additional (and optional) compiler for python, which compiles the same way as traditional compilers. This would leave to the programmer to chose, which is more important to them; multiplatform executability or performance on native machine. In general; why are not there any languages which could be behave both as compiled and interpreted?

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  • Digia dévoile un nouveau concept d'interface homme-machine (IHM) en 3D pour les automobiles implémentée avec Qt

    Digia dévoile un nouveau concept d'interface homme-machine (IHM) en 3D pour les automobiles implémentée avec Qt Aux Qt Developer Days 2011 de Munich, Digia Qt Commercial a montré un nouveau concept d'interface homme-machine (IHM) en 3D pour les automobiles pour la prochaine version commerciale de Qt 4.8. Le concept sera utilisé comme une nouvelle plateforme d'innovation pour faciliter l'intégration et la présentation de nouvelles idées technologiques. Le principe d'interaction de l'IHM 3D est prévu pour la facilité et l'intuitivité de son utilisation. L'utilisateur est en mesure de contrôler l'interface utilisateur avec des gestes approximatifs au lieu de pointer précisément. Puisque le système m...

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  • ??Oracle EBS R12 on Sun database Machine MAA&HPA ????

    - by longchun.zhu
    ??????1????,3??hands-on ?????, ?????????XXX,XXX Partners ??OSS,SC,??iTech ?20????,,??????????,?????????????!??????,????????????????????????! ??,??????,???????,???????,??EBS ???????,??,????ORACLE ?N?????????????,????????????? 5? ?????????, ?????????,????????2T??..??????????PPT ?????????!???eric.gao ??????????? ?????????, ????eric,cindy,??????????! ?????????! ?????,???????????,????,????????... Course Objectives ??: After completing this course, you can be able to do the following : •Understand EBS R12 on Exadata MAA •Install and Configure Oracle EBS R12 Single Instance •Apply Chinese Package on EBS R12 •Upgrade Application DB Version to 11gR2 •Deploy Clone EBS R12 to Sun Database Machine •Migration File System to Exadata Storage ASM •Converting Application DB to RAC •Configure EBS R12 MAA with Exadata 1: Oracle EBS R12.1.1 Single Instance Install 2: Apply Chinese Package on EBS R12 3: Upgrade Application DB Version to 11gR2 4: Clone EBS R12 to Sun Database Machine 5: Migrate File Systems to ASM Storage 6: Converting Application DB to RAC 7: Configure EBS MAA with Exadata

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  • Can a Mac Machine be used by Multiuser at same time?

    - by Amit Jain
    Hi All, Can a mac machine be used by different user at the same time ? I mean to say that we have a single mac machine but 3 users can they access the same machine remotely at the same time for developing application on iPhone or Mac. Does Mac OS X server allows us to do this ? If Yes please provide me with suitable link. Thanks Amit

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  • Rsync Push files from linux to windoes. ssh issue - connection refused

    - by piyush c
    For some reason I want to run a script to move files from Linux machine to Windows. I have installed cwRsync on my windows machine and able to connect to linux machine. When i execute following command: rsync -e "ssh -l "piyush"" -Wgovz --timeout 120 --delay-updates --remove-sent-files /usr/local/src/piyush/sync/* "[email protected]:/cygdrive/d/temp" Where 10.0.0.60 is my widows machine and I am running above command on Linux - CentOS 5.5. After running command I get following error message: ssh: connect to host 10.0.0.60 port 22: Connection refused rsync: connection unexpectedly closed (0 bytes received so far) [sender] rsync error: error in rsync protocol data stream (code 12) at io.c(463) [sender=2.6.8] [root@localhost sync]# ssh [email protected] ssh: connect to host 10.0.0.60 port 22: Connection refused I have modified my firewall settings on widows to allow all ports. I think this issue is due to SSH Daemon not present on my windows machine. So I tried installing OpenSSH on my machine and running ssh-agent but didn't helped. I tried similar command to run on my widows machine to pull files from Linux and its working fine. For some reason I want command for Linux machine so that I can embed it in a shell script. Can you suggest me if I am missing anything. I am already having cwRsync installed on my widows and running it in daemon mode using --damemon option. And I am able to login using ssh from windows machine to linux machine. When I issue bellow command, it just blocks for 120 seconds (timeout I specified in command) and exits saying there is timeout. rsync -e "ssh -l piyush" -Wgovz --timeout 120 --delay-updates --remove-sent-files /usr/local/src/piyush/sync/* "[email protected]:/cygdrive/d/temp" After starting rsync on widows, I checked, rsyc is running. And widows firewall setting are set to minimal, and on Linux machine stopped iptables service so that port 873 (default rsync port) is not blocked. What can be the possible reason that Linux machine is not able to connect to rsync-daemon on windows machine?

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  • Is dual-booting an OS more or less secure than running a virtual machine?

    - by Mark
    I run two operating systems on two separate disk partitions on the same physical machine (a modern MacBook Pro). In order to isolate them from each other, I've taken the following steps: Configured /etc/fstab with ro,noauto (read-only, no auto-mount) Fully encrypted each partition with a separate encryption key (committed to memory) Let's assume that a virus infects my first partition unbeknownst to me. I log out of the first partition (which encrypts the volume), and then turn off the machine to clear the RAM. I then un-encrypt and boot into the second partition. Can I be reasonably confident that the virus has not / cannot infect both partitions, or am I playing with fire here? I realize that MBPs don't ship with a TPM, so a boot-loader infection going unnoticed is still a theoretical possibility. However, this risk seems about equal to the risk of the VMWare/VirtualBox Hypervisor being exploited when running a guest OS, especially since the MBP line uses UEFI instead of BIOS. This leads to my question: is the dual-partitioning approach outlined above more or less secure than using a Virtual Machine for isolation of services? Would that change if my computer had a TPM installed? Background: Note that I am of course taking all the usual additional precautions, such as checking for OS software updates daily, not logging in as an Admin user unless absolutely necessary, running real-time antivirus programs on both partitions, running a host-based firewall, monitoring outgoing network connections, etc. My question is really a public check to see if I'm overlooking anything here and try to figure out if my dual-boot scheme actually is more secure than the Virtual Machine route. Most importantly, I'm just looking to learn more about security issues. EDIT #1: As pointed out in the comments, the scenario is a bit on the paranoid side for my particular use-case. But think about people who may be in corporate or government settings and are considering using a Virtual Machine to run services or applications that are considered "high risk". Are they better off using a VM or a dual-boot scenario as I outlined? An answer that effectively weighs any pros/cons to that trade-off is what I'm really looking for in an answer to this post. EDIT #2: This question was partially fueled by debate about whether a Virtual Machine actually protects a host OS at all. Personally, I think it does, but consider this quote from Theo de Raadt on the OpenBSD mailing list: x86 virtualization is about basically placing another nearly full kernel, full of new bugs, on top of a nasty x86 architecture which barely has correct page protection. Then running your operating system on the other side of this brand new pile of shit. You are absolutely deluded, if not stupid, if you think that a worldwide collection of software engineers who can't write operating systems or applications without security holes, can then turn around and suddenly write virtualization layers without security holes. -http://kerneltrap.org/OpenBSD/Virtualization_Security By quoting Theo's argument, I'm not endorsing it. I'm simply pointing out that there are multiple perspectives here, so I'm trying to find out more about the issue.

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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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  • How to ping virtualbox guest machine by hostname? [migrated]

    - by Punit Soni
    Here is the summary. VirtualBox 4.2.18 Host OS: Windows 7 Guest OS: Ubuntu 12.04 Networking: Bridged Adaptor I can ping Host and other machines in host's network from ubuntu guest using hostnames. But, I can only ping the guest machine using IP address from host and network machines. I have avahi-daemon running on Guest OS. I want to be able to ping/ssh the guest machine from host and other machines on network using hostname of the guest machine. Please help.

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  • How do I make more available space on a Time Machine hard disk?

    - by Daryl Spitzer
    I upgraded my MacBook Pro to Snow Leopard, and made some other changes that have caused my next Time Machine backup to be quite large. Previous to the upgrade my backup drive had filled up, so Time Machine was deleting old backups to make room for new ones. When Time Machine started the first backup after the upgrade, it displayed a message that it was freeing up space. But it wasn't able to free up enough: (The disk has 320 GB capacity.) How can I free up more space on the disk (without reformatting or deleting all the existing backups)? I don't want to recklessly delete files and take the risk of confusing Time Machine.

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  • Using a named pipe to simulate a serial port on a VMware virtual machine (linux host and client)

    - by Dave M
    Trying to write a python program to create a simulated data stream and feed it, through a named pipe, to a VMware virtual machine. The host is running Ubuntu 11.10 and VMware player 5.0.0. The Vm is running Ubuntu netbook 10.04. I am able to get the pipe working on the local machine but I am not able to get the pipe to pass data through the virtual serial port to the programs running on the virtual machine. #!/usr/bin/python import os # # Create a named pipe that will be used as the serial port on a VMware virtual machine SerialPipe = '/tmp/gpsd2NMEA' try: os.unlink(SerialPipe) except: pass os.mkfifo(SerialPipe) # # Open the named pipe NMEApipe = os.open(SerialPipe, os.O_RDWR|os.O_NONBLOCK) # # Write a string to the named pipe NMEAtime = "235959" os.write(NMEApipe, str( '%s\n' % NMEAtime )) Test to see if the python program is working on the host machine (displays 235959 if data is passing through the pipe) $ cat /tmp/gpsd2NMEA 235959 Serial port as defined in the VMware .vmx file: serial0.present = "TRUE" serial0.startConnected = "TRUE" serial0.fileType = "pipe" serial0.fileName = "/tmp/gpsd2NMEA" serial0.pipe.endPoint = "client" serial0.autodetect = "FALSE" serial0.tryNoRxLoss = "TRUE" serial0.yieldOnMsrRead = "TRUE" Test to see if the serial port in the VM is receiving data $ cat /dev/ttyS0 or $ minicom -D /dev/ttyS0 or $ stty -F /dev/ttyS0 cs8 -parenb -cstopb 115200 $ echo < /dev/ttyS0 None of these display any data from the python program.

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