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  • VirtualBox error with Ubuntu virtual machine

    - by user2985363
    I am trying to work on a coding project and cannot open my Ubuntu virtual machine with Oracle VM VirtualBox. I took a snapshot yesterday at about 11, and it was working fine. Several times I closed and reopened it. Today when I tried to open it, I kept getting the error below. Failed to open a session for the virtual machine Ubuntu 12.04 32-bit. VM cannot start because the saved state file 'C:\Users\Tyler\VirtualBox VMs\Ubuntu 12.04 32-bit\Snapshots\2014-01-30T19-59-05-976647800Z.sav' is invalid (VERR_FILE_NOT_FOUND). Deleted the saved state prior to starting the VM. I tried deleting the file as it said, but none of the snapshots would open still. The file is still in my recycling bin. What can I do? Also, I took the 1/31 snapshot today before I deleted the previous one.

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  • Running Debian as a Virtual Machine Host

    - by Tone
    I have a need to run a linux server to host subversion, bugzilla over Apache and also act as a file and print server. I also have a need to host Windows Server 2008 virtual machines for development purposes (I'm a .NET guy). The machine I have is a dual core AMD 2.5 Ghz w/2GB RAM. So here are my questions: 1) Should I run Debian (or some other distro) as the base AND create a Debian VM to host subversion, bugzilla and be my file/print server? or is it ok to use Debian as both my VM host and for those other reasons? 2) VMWare has a free server edition, Virtual Box also is another free option. Which one of these is better suited for what I need to do? Are there any other free (or inexpensive) alternatives out there? 3) Will I need a GUI with Debian in order to manage my VMs? 4) Can I run VMs without a GUI to conserve system resources?

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  • Windows Virtual Machine ping reply fails the first few times

    - by user28471
    I am running a windows Web Server 2008 virtual machine. When I try to ping it from another windows machine the ping reply comes straight back with 100% success. But when I try to ping it from one of the Linux boxes, the ping reply fails with partial or 100% loss the first couple of time and succeeds the third time onwards. I know it is quite strange but can any one think anything that could be causing it. Could anything in the Windows Domain Security or Firewall be "taking time" to allow responding to the ping request? In fact even the firewall is turned off on the virtual machine.

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  • Serial Port Not getting closed. I want to release the COM port ...

    - by sunil
    Serial Port Not getting closed. I want to release the COM port ... Below is my code.... import java.io.*; import java.util.*; import gnu.io.*; public class ReadCommPort implements SerialPortEventListener { static CommPortIdentifier portId; static Enumeration portList; InputStream inputStream; OutputStream outputStream; public SerialPort serialPort; List byteList = new ArrayList(); public static Message message = null; public void readData() { boolean portFound = false; String defaultPort = "COM1"; portList = CommPortIdentifier.getPortIdentifiers(); while ( portList.hasMoreElements() ) { portId = ( CommPortIdentifier )portList.nextElement(); if ( portId.getPortType() == CommPortIdentifier.PORT_SERIAL ) { if ( portId.getName().equals( defaultPort ) ) { System.out.println( "Found port: " + defaultPort ); portFound = true; buildSerialPort(); } } } if ( ! portFound ) { System.out.println( "port " + defaultPort + " not found." ); } } public void buildSerialPort() { try { serialPort = (SerialPort) portId.open( "ReadCommPort", 1 ); inputStream = serialPort.getInputStream(); outputStream = serialPort.getOutputStream(); serialPort.addEventListener( this ); serialPort.notifyOnDataAvailable(true); serialPort.setSerialPortParams( 2400, SerialPort.DATABITS_7, SerialPort.STOPBITS_1, SerialPort.PARITY_NONE ); } catch ( Exception e ) { e.printStackTrace(); } } @SuppressWarnings("unchecked") public void serialEvent( SerialPortEvent event ) { switch ( event.getEventType() ) { case SerialPortEvent.BI: System.out.println( "BI"); break; case SerialPortEvent.OE: System.out.println( "OE"); break; case SerialPortEvent.FE: System.out.println( "FE"); break; case SerialPortEvent.PE: System.out.println( "PE"); break; case SerialPortEvent.CD: System.out.println( "CD"); break; case SerialPortEvent.CTS: System.out.println( "CTS"); break; case SerialPortEvent.DSR: System.out.println( "DSR"); break; case SerialPortEvent.RI: System.out.println( "RI"); break; case SerialPortEvent.OUTPUT_BUFFER_EMPTY: System.out.println( "OUTPUT_BUFFER_EMPTY"); break; case SerialPortEvent.DATA_AVAILABLE : try { int len = inputStream.available(); byte[] readBuffer = new byte[ len ]; // processing data code.. // close the port // release all resources... serialPort.removeEventListener(); try { serialPort.addEventListener( null ); } catch (TooManyListenersException e) { e.printStackTrace(); } inputStream.close(); outputStream.close(); serialPort.close(); } catch ( IOException e ) { e.printStackTrace(); } break; } } public static void main(String[] args) { new ReadCommPort().readData(); } }

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  • Port 5357 TCP on Windows 7 professional 64 bit?

    - by Registered
    Is there a reason this port is open, a quick Nmap scan and Nessus scan reveal it's open, why? Are there any ramifications if I close this port via the firewall rule set? Or does anyone here now more info about this port besides Google? WTF? 1)http://www.symantec.com/connect/blogs/who-left-tunnel-door-open-windows-firewall-vista-0 I know the talk is about Vista, but I am pretty sure it's the same port on 7, also. 2)Port 5357 common errors:The port is vulnerable to info leak problems allowing it to be accessed remotely by malicious authors. (Web Services for Devices) I am blocking this crap, if I have issues will just re-enable. Damn windows. Inbound rule for Network Discovery to allow WSDAPI Events via Function Discovery. [TCP 5357] You just got blocked, until I break something, will see. Time to re-Nmap and re-Nessus. Nmap scan 0 open ports after closing Port 5357,Win7 still works for now, one more scan with Nessus just to make sure all is well.

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  • PHP: Cookie only sent to http://www.xxx.com and NOT http://xxx.com

    - by Axel
    Hi, I have a php login which sets 2 cookies once some one login. the problem is that if you login from : http://www.mydomain.com and you go to http://mydomain.com you will find your self not logged in, I think that's because the browser only send the cookies to the first syntax. It's only one domain, the difference is the www. before the domain name, so how to set cookies to the whole domain whatever there is www. or not ? Thanks

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  • 6 Tips and Tricks for Microsoft’s New Outlook.com

    - by Chris Hoffman
    Microsoft’s new Outlook.com is the successor to Hotmail – all Hotmail users will eventually be migrated to Outlook.com. Outlook.com is a modern webmail system that offers some useful features, including some not found in Gmail. If you have a @hotmail.com address, don’t worry – you’ll be able to use Outlook.com with @hotmail.com addresses, too. To get started with Outlook.com or create an @outlook.com email address, head over to Outlook.com. HTG Explains: Is UPnP a Security Risk? How to Monitor and Control Your Children’s Computer Usage on Windows 8 What Happened to Solitaire and Minesweeper in Windows 8?

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  • How to create a restricted SSH user for port forwarding?

    - by Lekensteyn
    ændrük suggested a reverse connection for getting an easy SSH connection with someone else (for remote help). For that to work, an additional user is needed to accept the connection. This user needs to be able to forward his port through the server (the server acts as proxy). How do I create a restricted user that can do nothing more than the above described? The new user must not be able to: execute shell commands access files or upload files to the server use the server as proxy (e.g. webproxy) access local services which were otherwise not publicly accessible due to a firewall kill the server Summarized, how do I create a restricted SSH user which is only able to connect to the SSH server without privileges, so I can connect through that connection with his computer?

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  • How to create a restricted SSH user for port forwarding?

    - by Lekensteyn
    ændrük suggested a reverse connection for getting an easy SSH connection with someone else (for remote help). For that to work, an additional user is needed to accept the connection. This user needs to be able to forward his port through the server (the server acts as proxy). How do I create a restricted user that can do nothing more than the above described? The new user must not be able to: execute shell commands access files or upload files to the server use the server as proxy (e.g. webproxy) access local services which were otherwise not publicly accessible due to a firewall kill the server Summarized, how do I create a restricted SSH user which is only able to connect to the SSH server without privileges, so I can connect through that connection with his computer?

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  • Lenovo W520 back usb port not working

    - by jaudette
    The usb port in the back of my laptop (on the right side when viewed from using perspective) is not working. Does anybody know if we can get this port working, and what the port number is. Here is my lsusb, if it can help. % lsusb Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 003 Device 002: ID 046d:c01e Logitech, Inc. MX518 Optical Mouse Bus 003 Device 003: ID 046d:c318 Logitech, Inc. Illuminated Keyboard Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 0765:5001 X-Rite, Inc. Huey PRO Colorimeter Bus 001 Device 004: ID 147e:2016 Upek Biometric Touchchip/Touchstrip Fingerprint Sensor Bus 001 Device 005: ID 0a5c:217f Broadcom Corp. Bluetooth Controller Bus 001 Device 006: ID 04f2:b217 Chicony Electronics Co., Ltd Lenovo Integrated Camera (0.3MP) Bus 002 Device 003: ID 17ef:1003 Lenovo Integrated Smart Card Reader I am running 12.10, upgraded from 12.04 but it did not work either in 12.04. The two usb ports on the left work just fine. EDIT: I just updated my bios from 1.32 to 1.39, no change in behaviour. The port does not even power up my devices. EDIT 2: Booted up windows, and the port is working. I went into the device manager and looked at the USB settings. I found my USB drive on Port 2, Hub 3, i just don't know how that relates to the Bus and Device numbers of linux. In windows, Smart card reader was on USB hub located at port 1 hub 2, fingerprint and bluetooth were on USB hub located at port 1 hub 1 EDIT 3: Went and looked at this SO post. Tried to look at my kern.log file with tail -f /var/log/kern.log. Got some activity when plugging/removing devices in other ports, but nothing happens when connecting a device into that port. It really looks disabled. Looked at my usb1-4 sys/bus/usb/devices/usb1/power/control and they are all set on auto. As expected, usb4 have version 3.00, the others (usb1-usb3) are 2.00.

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  • Why are Virtual Terminal Blank using NVIDIA propietary drivers?

    - by Jhonnytunes
    When using nouveau the fps are low compared to nvidia closed driver. But when booting, nvidia drivers show the ubuntu splash screen in a 900x800 resolution like nvidia its not loaded yet. When nouveau it splash in a decent resolution. The problem I'm having since karmic koala is I cant switch to virtual terminals with nvidia closed drivers. By the way, is the same PC: VAIO VPCCW19FX with NVIDIA G210M, now with precise amd64. To make easy to read the configs, I pastedbin'ed each file in differents pastes. /etc/X11/xorg.conf http://pastebin.com/Ly7n5d2T /etc/default/grub http://pastebin.com/VPBYkRVS lsmod http://pastebin.com/a7q3z9ZL lspci http://pastebin.com/bd4vPCPf

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  • .NET COM Interop with references to other libraries

    - by user262190
    Hello,I'm up against a problem when loading a class in a managed library from a COM Interop library. basically I have some Unmanaged C++ code and a COM Interop library written in C#. And finally a 3rd library which is referenced by the COM Interop library which contains a class: public class MyClass{ public MyClass(){} } What I'd like to do is from my unmanaged c++ code, call a function in the Interop library The C++ code doesn't need to know of the existence of the third library, it's only used within the Interop. Init(){ MyClass _class = new MyClass(); } for some reason this line in Init fails "MyClass _class = new MyClass();", and I don't get very usefull error messages, all I have to go on is a few of these in my output window: "First-chance exception at 0x7c812afb in DotNet_Com_Call.exe: Microsoft C++ exception: [rethrow] at memory location 0x00000000.." and the HRESULT of the "HRESULT hr = pDotNetCOMPtr-Init();" line in my C++ code is "The system cannot find the specified file" I'm new to COM so if anyone has any ideas or pointer to get me going the right direction, I'd appreciate it, Thanks

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  • How to use an out-of-process COM server without its tlb file

    - by Dbger
    It is about Window COM component. Server.exe: an 32bit out-of-process COM server CLSID_Application: The GUID of a COM object in Server.exe Client.exe: a 64bit client application which use Server.exe in a registry-free way. As we know, an exe can't be used as a registry-free COM component, to mimic such behavior, I start the Server.exe process myself by providing the exact path: CreateProcess("Server.exe") IClassFactory* pFactory = CoGetClassObject(CLSID_Application) pFactory-CreateInstance(ppAppObject); It works if I have the Server.tlb registred, but after unregister Server.tlb, it just failed to create the ppAppObject, even though I embed manifest into both Server.exe and Client.exe: <assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0"> <file name="Server.tlb"> <typelib tlbid="{DAC4A4C9-F84C-4F05-A7DC-E152869499F5}" version="1.0" helpdir=""></typelib> </file> <comInterfaceExternalProxyStub name="IApplication" iid="{D74208EA-71C2-471D-8681-9760B8ECE599}" tlbid="{DAC4A4C9-F84C-4F05-A7DC-E152869499F5}" proxyStubClsid32="{00020424-0000-0000-C000-000000000046}"></comInterfaceExternalProxyStub> </assembly> Do you have any idea on this? Edit: It turns out that it really works if I specify tlbid for interfaces, and embed the manifest to both exe

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  • .NET COM Interop on Windows 7 64Bit gives me a headache

    - by Kevin Stumpf
    Hey guys, .NET COM interop so far always has been working quite nicely. Since I upgraded to Windows 7 I don't get my .NET COM objects to work anymore. My COM object is as easy as: namespace Crap { [ComVisible(true)] [Guid("2134685b-6e22-49ef-a046-74e187ed0d21")] [ClassInterface(ClassInterfaceType.None)] public class MyClass : IMyClass { public MyClass() {} public void Test() { MessageBox.Show("Finally got in here."); } } } namespace Crap { [Guid("1234685b-6e22-49ef-a046-74e187ed0d21")] public interface IMyClass { } } assembly is marked ComVisible as well. I register the assembly using regasm /codebase /tlb "path" registers successfully (admin mode). I tried regasm 32 and 64bit. Both time I get the error "ActiveX component cant create object Crap.MyClass" using this vbscript: dim objReg Set objReg = CreateObject("Crap.MyClass") MsgBox typename(objReg) fuslogvw doesn't give me any hints either. That COM object works perfectly on my Vista 32 Bit machine. I don't understand why I haven't been able to google a solution for that problem.. am I really the only person that ever got into that problem? Looking at OleView I see my object is registered successfully. I am able to create other COM objects as well.. it only does not work with my own ones. Thank you, Kevin

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  • Need to call COM component using reflections in C#.NET

    - by Usman
    Hello, I need to determin the COM component(unmanaged code) type and invoke the exposed interface's methods using reflection in C#.NET at runtime. 1 -- First What member of "Type" tells that type is COM component and we can take CLSID at runtime? Is Type.COMObject? 2 -- I need to call methods of exposed interfaces as they called in unmanaged code using CoCreateInstance by passing CLSID and REFID ... I am using InvokeMember but it returns null or 0 as out parameter. How to pass out parameter in this case.? Is there any need to pass out parameter? As all my COM unamanged code suppose to take las parameter as an OUT parameter and after executing it puts the result into that out param. But I've converted all my unmanged COM code to .NET managed assemblies using tlbimp.exe. Regards Usman

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  • Fastest way to call a COM objects method without using a RCW

    - by Nathan W
    I'm trying to find the cleanest and fastest way for calling a COM objects methods. I was using a RCW for the object but every time a new version of the third party COM object comes out its GUID changes which then renders the RCW useless, so I had to change and start using Type mytype = Type.GetTypeFromProgID("MyCOMApp.Application"); so that every time a new version of the COM object comes out I don't have to recomplie and redeploy my app. At the moment I am using refelection like mytype.InvokeMemeber but I feel it is so slow compared to just calling the RCW. How does everyone else tackle the problem of changing 3rd party COM object versions, but still maintaining the speed of a RCW?

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  • Find a free port C#

    - by Alon
    How does IPEndPoint finds a free port when I do new IPEndPoint(IPAddress.Any, 0), for example? Is it possible to find a free port from a range, without the GetActiveTcpConnections method? because it is slow - I need a faster way to do this. Thanks.

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  • COM C# Memory leak Tracing

    - by maxfridbe
    Is there a way to find out the memory usage of each dll within a c# application using com dll's? Or what would you say is the best way to find out why memory grows exponentially when using a com object (IE. Whether the COM object has a memory leak, or whether some special freeing up of objects passed to managed code has to occur(and/or how to do that)).

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  • Strategies for Accessing a Application with a COM API From PHP

    - by Alan Storm
    Background: Experienced PHP developer with a mostly *nix background. I'm writing a PHP application that needs to interact with a proprietary 3rd party system. The 3rd party system is Windows only. The PHP application will be living on a separate Linux based system The 3rd party application has been described as having a "COM API" that I'll need to talk to from the PHP application. What does this look like architecturally speaking? I'm starting with the COM section of the PHP manual, but I have specific questions. Specific Questions: Can I talk directly to a COM API from a PHP application running on another server? If so, how? (what PHP extensions would I need, or what protocols/PHP functions would I be using to talk to the API) If the answer to number 2 is no, I'd assume I'd need some kind of application on the Windows machine that can talk to COM, and then a service on the windows machine I can hit with PHP. Are there prebuilt frameworks for this kind of thing? Is this all nonsense and/or did I say something exceedingly stupid? (Quite possible, as I'm a little fuzzy on what "COM" does and doesn't cover) I'm obviously not looking for a full solution here, I'm just trying to get a general idea of what is and isn't possible and what kind of things I'll want to Google for. Thanks!

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