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  • Silverlight 4 IN Browser Socket

    - by Benny
    I need to use a TCP socket connecting to a port outside of 4502-4532 while running in browser. I know it is possible to do out of browser with allowing full access, but how can I do it inside the browser? I am connecting to an old Unix system so I would prefer not to host a web site hosting a clientaccesspolicy.xml file. Thanks in advance!

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  • Close socket and select()

    - by kamziro
    So I need to close a particular connection, but the problem is another thread is, at the same time, doing a select() which has the socket as one of the file descriptors it's watching. Will the select() terminate gracefully, or will anything bad happen?

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  • Java Socket Connection is flooding network OR resulting in high ping

    - by user1461100
    i have a little problem with my java socket code. I'm writing an android client application which is sending data to a java multithreaded socket server on my pc through direct(!) wireless connection. It works fine but i want to improve it for mobile applications as it is very power consuming by now. When i remove two special lines in my code, the cpu usage of my mobile device (htc one x) is totally okay but then my connection seems to have high ping rates or something like that... Here is a server code snippet where i receive the clients data: while(true) { try { .... Object obj = in.readObject(); if(obj != null) { Class clazz = obj.getClass(); String className = clazz.getName(); if(className.equals("java.lang.String")) { String cmd = (String)obj; if(cmd.equals("dc")) { System.out.println("Client "+id+" disconnected!"); Server.connectedClients[id-1] = false; break; } if(cmd.substring(0,1).equals("!")) { robot.keyRelease(PlayerEnum.getKey(cmd,id)); } else { robot.keyPress(PlayerEnum.getKey(cmd,id)); } } } } catch .... Heres the client part, where i send my data in a while loop: private void networking() { try { if(client != null) { .... out.writeObject(sendQueue.poll()); .... } } catch .... when i write it this why, i send data everytime the while loop gets executed.. when sendQueue is empty, a null "Object" will be send. this results in "high" network traffic and in "high" cpu usage. BUT: all send comments are received nearly immediately. when i change the code to following: while(true) ... if(sendQueue.peek() != null) { out.writeObject(sendQueue.poll()); } ... the cpu usage is totally okay but i'm getting some laggs.. the commands do not arrive fast enough.. as i said, it works fine (besides cpu usage) if i'm sending data(with that null objects) every while execution. but i'm sure that this is very rough coding style because i'm kind of flooding the network. any hints? what am i doing wrong?? Thanks for your Help! Sincerly yours, maaft

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  • Put a java socket-like program in a cloud service

    - by user293030
    I developed a server side java program, basically is a relay server so I can easily pass NATs and firewalls. The program works, but now I need a cloud service to host it. Do you know where/how I can put a java socket-like program in the cloud? Obviously, I prefer a free service or at least a free service while I'm testing. Thank you!

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  • Socket Communication C#- IP Address

    - by Ahmet Altun
    I have a socket application which I can use in local network, at home. I can make them communicate for example from 192.168.x.x to 192.168.y.y ip addresses. What should I do if I want to use the application over internet, from a remote machine, not local. For example which ip addresses should I use if my friend who lives another country wants to access my application.

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  • non blocking TCP-acceptor not reading from socket

    - by Abruzzo Forte e Gentile
    I have the code below implementing a NON-Blocking TCP acceptor. Clients are able to connect without any problem and the writing seems occurring as well, but the acceptor doesn't read anything from the socket and the call to read() blocks indefinitely. Am I using some wrong setting for the acceptor? Kind Regards AFG int main(){ create_programming_socket(); poll_programming_connect(); while(1){ poll_programming_read(); } } int create_programming_socket(){ int cnt = 0; p_listen_socket = socket( AF_INET, SOCK_STREAM, 0 ); if( p_listen_socket < 0 ){ return 1; } int flags = fcntl( p_listen_socket, F_GETFL, 0 ); if( fcntl( p_listen_socket, F_SETFL, flags | O_NONBLOCK ) == -1 ){ return 1; } bzero( (char*)&p_serv_addr, sizeof(p_serv_addr) ); p_serv_addr.sin_family = AF_INET; p_serv_addr.sin_addr.s_addr = INADDR_ANY; p_serv_addr.sin_port = htons( p_port ); if( bind( p_listen_socket, (struct sockaddr*)&p_serv_addr , sizeof(p_serv_addr) ) < 0 ) { return 1; } listen( p_listen_socket, 5 ); return 0; } int poll_programming_connect(){ int retval = 0; static socklen_t p_clilen = sizeof(p_cli_addr); int res = accept( p_listen_socket, (struct sockaddr*)&p_cli_addr, &p_clilen ); if( res > 0 ){ p_conn_socket = res; int flags = fcntl( p_conn_socket, F_GETFL, 0 ); if( fcntl( p_conn_socket, F_SETFL, flags | O_NONBLOCK ) == -1 ){ retval = 1; }else{ p_connected = true; } }else if( res == -1 && ( errno == EWOULDBLOCK || errno == EAGAIN ) ) { //printf( "poll_sock(): accept(c_listen_socket) would block\n"); }else{ retval = 1; } return retval; } int poll_programming_read(){ int retval = 0; bzero( p_buffer, 256 ); int numbytes = read( p_conn_socket, p_buffer, 255 ); if( numbytes > 0 ) { fprintf( stderr, "poll_sock(): read() read %d bytes\n", numbytes ); pkt_struct2_t tx_buf; int fred; int i; } else if( numbytes == -1 && ( errno == EWOULDBLOCK || errno == EAGAIN ) ) { //printf( "poll_sock(): read() would block\n"); } else { close( p_conn_socket ); p_connected = false; retval = 1; } return retval; }

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  • send socket c ctrl+c behavior

    - by out_sider
    I'm witting an application based on a server and various client but I'm having a problem with the send command. Whenever I do ctrl+c on the client side the send operation kills the thread which is in and the process running (in order to have multiple clients I set a thread to which one). If the client ends (doing the close socket) properly the server doesn't die, but when I use the ctrl+c combination on the client both exit. What can I do to prevent send commando to have this behavior? Thx in advance

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  • Windows 2012/IIS 8 + ASP.NET MVC Applicaiton 403.14 (Forbidden) - The Web server is configured to not list the contents

    - by WiredPrairie
    I have a very simple MVC 4 application I'm trying to deploy to a Windows 2012 server. Inconsistently, when navigating to the root of the web application (http://localhost/app), it returns a 403.14-Forbidden: Detailed Error Information: Module: DirectoryListingModule Notification: ExecuteRequestHandler Handler: StaticFile Error Code: 0x00000000 Requested URL: http://localhost:80/test1/ Physical Path: c:\apps\test1\ Logon Method: Negotiate The web application is: Is a very vanilla VS2012 MVC4 Intranet template -- with only a tweak to a label to prove things were working. runs in an Integrated v4.0 application pool setup to use Windows authentication application pool has a custom AD Identity assigned (so it can gain access to a SQL server) application pool identity has read permissions in the c:\apps\test1 folder in which it is running It's an MVC4 application, targeting .NET 4.0 currently -There's no default document in an MVC4 application (like a default.aspx), as there shouldn't need to be one. I don't want to enable directory listings (as that's not the real error). Installed: Roles / Web Server (IIS) / Appliation Development / (.NET 4.5 Extensibility, Application Initialization, ASP.NET 4.5, ISAP Extensions, ISAPI Filters, WebSocket Protocol) Works locally on my machine in IISExpress on Windows 8 Has configured in web.config: <modules runAllManagedModulesForAllRequests="true" /> is set to precompiled during publish When I change the precompiled option to false, the web application does not fail (in my testing at least, it seems to work consistently). The reason I say it's inconsistent is that I've seen it work, then I've published, and the error returns. I can't find a pattern to the issue (and right now, I haven't been able to get it work again, at all). The 403 is returned from a local or remote web browser. I've had trouble finding a solution that isn't intended for older versions of Windows (like suggestions to reinstall ASP.NET which won't work on Windows 2012). I really don't know what else to try.

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  • PXE with WDS & Windows Server 2012 - no filename option in DHCP lease?

    - by user1799
    I'm trying to configure Windows Server 2012 (a virtual box VM) with WDS so I can PXE boot some Windows 7 VMs (also virtual box). All the machines involved are only attached to the "host only network", 192.168.56.0/24. The Server 2012 machine has been setup as an AD DS machine, has DNS installed and working along with DHCP with option 60 - PXEClient - set and WDS is set to not listen on DHCP ports. I've followed http://technet.microsoft.com/en-us/library/jj648426.aspx very closely. I've used the boot.wim and install.wim files from the Win 7 installation DVD and they're configured as 'boot' and 'installation' images respectively. When I boot the target machine, it gets an IP address, but I simply get 'no filename' and the boot won't proceed any further. I've tried setting option 66 to 192.168.56.2 (the WDS server) and option 67 to both Boot\x64\wdsnbp.com and Boot\x64\pxeboot.n12 but all to no avail. I can't seem to see anything in the event log, either. Can anyone out there spot what I'm doing wrong? Or give tips to narrow down a diagnostic?

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  • 'pskill \\hostname winlogon' might budge a server "stuck rebooting", but why?

    - by Snoi
    Question: Executing remote (Sysinternals) command... pskill \\machine winlogon ...can budge a server that is stuck rebooting, but how/why does this work? How do you know which service to kill? To recreate (e.g.): You run Windows Update, allow a reboot, and ...NOTHING! RDP gets cut off but the server does not reboot. Just about every other service seems to stay up. Further Background: I've faced this problem on VMs hosted around the planet for some years, and used various sc.exe and shutdown commands to learn the state of and attempt remote reboot of servers in such a state, with limited success. Most datacentres don't offer any way to see the true console or power off/on such machines. They charge $$ for you to call them to do such simple things after hours, when you nearly always have to run your maint tasks. e.g. NET USE \\machine\IPC$ /USER:login password sc \\machine query RpcSs sc \\machine query TermService sc \\machine query wuauserv tasklist /s machine This occasionally works for me... shutdown /m \\machine /r /f /t: 0 ...but more often than not it fails with: A system shutdown is in progress (1115). I found this question, and the answer by @Tweek, and it worked really well, but was I just lucky? Can not RDP to Win 2003 box or initiate remote restart @Tweek said to run: pskill \\hostname winlogon ...and that got me past this situation in a new way (Server 2008 R2 in my most recent case) - really useful! I just need to understand if I got lucky or there is more science here. What I'd like to know is why the winlogon process? @Livne said to use "tasklist /s HostName" to see what is the culprit, but how do you tell from the listed output? It's just a list of running tasks etc. From that I would not know what to look for, nor could I see anything about the winlogon process that suggested to my eyes that was the one to kill.

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  • How can a CentOS 6 guest running in VirtualBox be configured as a LAMP server that can be accessed from the Windows host?

    - by jtt89
    I was able to conect Centos6 on Virtual Box to Windows (I can ping in both directions) with Host-only Adapter (for connection between the two) and NAT Adapter (to enable Linux on VB to connect to the Internet). I want to set up httpd, mysql and vsftpd servers and in the end easily connect to httpd from Windows based browser and ftp server with a Windows based client as well. I would also want to have access through SSH. I have a general idea of the steps that are involved, but there is also a configuration that I am not sure about at this point. Lets say I follow these steps: yum install httpd yum install php php-pear php-mysql yum install mysql-server mysql_secure_installation yum install vsftpd yum install mod_ssl Technically I have everything installed, but what would be the next steps that I need to take (from the networking point of view, so to speak) to get it all working)? I know I need to configure, at least Apache, and ftp server, but I am not sure how is it gonna work; like where am I gonna be uloading the sites (I know this can vary), how am I gonna know what address to use in a browser if I wanna go to a website x, y, z on that installation etc. This sounds like I need to do some kind of DNS setup and I am kind of stuck at this point. If somebody could give me a general outline of what are the things that need to be done that would be great (I was looking at a lot of websites and I know about etc/sysconfig/network, httpd.config - not too much about it on Apache's site, hostname, hostname -f etc; but it is kind of hard to piece it all together at this point). I am gonna be looking at the books also, but they not always reflect the setup that I have too (VirtualBox). Thank you.

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  • Windows Server 2008 R2 SP1 Drivers Missing Would Not Install?

    - by bleepzter
    I am building my dev machine with WS2008R2SP1. I consider Windows Server as the best development environment for C# since I tend to focus on server-centric (integration) applications. The desktop flavor of Windows (7) doesn't play nicely with things like Commerce Server or BizTalk... so I to like stick to the environment I develop for. Previously I used to develop inside of VM's but I've found that it is super inefficient and tends to take a toll on the laptops. (I've gone through two of them in 6 months). Problem is that I multiple devices that do not want to be recognized by Windows: My machine is Dell Precision M4500: Intel Core i7-Q740, 1TB HDD, 8GB RAM, Dell re-branded Broadcom DW1501 802x11n Half-Mini Card, Dell re-branded Broadcom DW375 Bluetooh Module, Intel 82577LM Gigabit Network connection NVidia Quadro FX1800 Graphics The devices in question are the Dell rebranded broadcom network and bluetooth adapters: Broadcom USH: USB\VID_0A5C&PID_5800&REV_0101&MI_00 USB\VID_0A5C&PID_5800&MI_00 DW375 Bluetooth Module USB\VID_413C&PID_8187&REV_0517 USB\VID_413C&PID_8187 When I ran the broadcom installers I get "Operating System not supported" which I think is a big oversight on Broadcom's part. Why check for system version string? UGHGHGH Moreover if I try to manually force the driver in windows... I get an error: Driver Management concluded the process to install driver FileRepository\btwampsecfl.inf_amd64_neutral_d8fc2b85d035ed47\btwampsecfl.inf for Device Instance ID USB\VID_0A5C&PID_5800&MI_00\7&66DE6C9&0&0000 with the following status: 0xe0000217. '- or - Driver Management concluded the process to install driver FileRepository\btwampfl.inf_amd64_neutral_d4c4acf036c61299\btwampfl.inf for Device Instance ID USB\VID_413C&PID_8187\90004EEEF5A6 with the following status: 0xe0000217. I googled the 0xe0000217 error code and it says Bad service install section in the driver inf file... Any ideas on how to fix this? I also tried the post by BetaIQ on MSDN Forum, unfortunately the links to the driver package included in the post were dead :( PS. On a side note I also do mobile development for Android, iOS, and Windows Phone, and BB. Having the bluetooth is quite useful with mobile devices.

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  • How to install DBD::mysql on OS X Server 10.6?

    - by Zoran Simic
    Trying to install DBD::mysql on OS X Server 10.6 (mac mini server). But I'm missing the mysql headers apparently. Since mysql is already part of OS X Server 10.6, I would like to NOT install anything else (no fink or darwin ports installs), just whatever's needed to get DBD::mysql installed and working. Do you know how I could do that? Do I have to install the headers somewhere? And if so, where? (again: I don't want to install another version of mysql on the box, want to use the version it came with). Is there a way to install DBD::mysql without compiling any C files? This is the error I get (the actual error is much longer, but these are the most meaningful bits, this is the first error reported). Checking if your kit is complete... Looks good Unrecognized argument in LIBS ignored: '-pipe' Note (probably harmless): No library found for -lmysqlclient Multiple copies of Driver.xst found in: /Library/Perl/5.10.0/darwin-thread-multi-2level/auto/DBI/ /System/Library/Perl/Extras/5.10.0/darwin-thread-multi-2level/auto/DBI/ at Makefile.PL line 907 Using DBI 1.611 (for perl 5.010000 on darwin-thread-multi-2level) installed in /Library/Perl/5.10.0/darwin-thread-multi-2level/auto/DBI/ Writing Makefile for DBD::mysql cp lib/DBD/mysql.pm blib/lib/DBD/mysql.pm cp lib/DBD/mysql/GetInfo.pm blib/lib/DBD/mysql/GetInfo.pm cp lib/DBD/mysql/INSTALL.pod blib/lib/DBD/mysql/INSTALL.pod cp lib/Bundle/DBD/mysql.pm blib/lib/Bundle/DBD/mysql.pm gcc-4.2 -c -I/Library/Perl/5.10.0/darwin-thread-multi-2level/auto/DBI -I/usr/include -fno-omit-frame-pointer -pipe -D_P1003_1B_VISIBLE -DSIGNAL_WITH_VIO_CLOSE -DSIGNALS_DONT_BREAK_READ -DIGNORE_SIGHUP_SIGQUIT -DDBD_MYSQL_INSERT_ID_IS_GOOD -g -arch x86_64 -arch i386 -arch ppc -g -pipe -fno-common -DPERL_DARWIN -fno-strict-aliasing -I/usr/local/include -Os -DVERSION=\"4.014\" -DXS_VERSION=\"4.014\" "-I/System/Library/Perl/5.10.0/darwin-thread-multi-2level/CORE" dbdimp.c In file included from dbdimp.c:20: dbdimp.h:22:49: error: mysql.h: No such file or directory dbdimp.h:23:45: error: mysqld_error.h: No such file or directory dbdimp.h:25:49: error: errmsg.h: No such file or directory

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  • can't connect to Sql Sever Management Express 2012

    - by Rare-Man
    i installed Sql Sever Management Express 2012 , but when i try to connect in Sql management studio enviroment , i have this error . TITLE: Connect to Server Cannot connect to .. ADDITIONAL INFORMATION: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) (Microsoft SQL Server, Error: 2) For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft%20SQL%20Server&EvtSrc=MSSQLServer&EvtID=2&LinkId=20476 The system cannot find the file specified BUTTONS: OK ................................................................................... and in during installion i dont have option for select cluster !! this is my SQL Server Configuration Manager , my sql server service is empty ... And when get Remove a Failover Cluster Node , this error happened . http://oi57.tinypic.com/2lrvat.jpg

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  • Get IP or MAC addresses of Windows Multipoint Server 2012 stations?

    - by user1454265
    Is it possible to programmatically retrieve the IP or MAC address of a station assigned to a Windows MultiPoint Server 2012 host, using PowerShell or any other .NET or Windows API? Background: I'm developing a application to help set up USB-over-Ethernet zero clients in a WMS 2012 setup, bridging the PowerShell "WmsCmdlets" module (Microsoft.WindowsServerSolutions.MultipointServer.PowerShell.Commands.Library.WmsStation) and a third-party vendor API for configuring zero client IP address, etc. So far, I do not know any means of matching up the "stations" of the WmsCmdlets with the zero client objects in the vendor's API. Finding out the IP or MAC associated with a WMS station would do nicely, since I have this on the zero client API side. However, I haven't found any information I could use in the PowerShell WmsCmdlets module, such as Get-WmsStation which returns the following: Id : 1 Name : <my station name> IsAutoLogOn : False IsSplit : False CollabId : 0 RemoteConnectionServerName : VirtualMachineName : VirtualMachineId : AutoLogOnUserName : AutoLogOnPassword : DeviceTypes : {DT_Mouse, DT_Keyboard, DT_Audio, DT_MassStorage...} DeviceCounts : {2, 2, 0, 0...} ComputerName : <my WMS host server name> SessionId : 4294967295 SessionHostServer : <my WMS host server name>

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  • SQL Server rolling forward lots of transactions, what should I look at?

    - by Anthony D
    I am running SQL Server Express on a Windows XP Embedded box. It runs for a day or two, doing some transactional processing for a POS type system, and with another system pulling data out to an OLAP DB for processing. After a while, I see in the event viewer the sequence SQL Server puts out when it restarts, copy rights, command line parameters, and so on. It seems like that coincides with our OLAP process crashing. I then see that when it restarts our transaction DB, it does a recovery, pulling in 10K or so in transactions that need to be rolled forward. Does this mean SQL has crashed? I don't really see much to indicate what happened. Update 1 I noticed I have my memory limit set to 1MB per query and 2TB for the server. These are the defaults. I only have one GB in the box. We have seen SQL crash a whole box by just using all the system memory. In this case though the whole box is up when we get to it.

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  • Can I replicate data between mySQL and SQL Server/SQL Azure?

    - by Ernest Mueller
    I have a replicated mySQL setup running happily on Amazon AWS, making user data available locally in various regions. Now I'm faced with an app that needs to go up on Microsoft Azure and I need to replicate the data over to there as well. So that's annoying. I am faced with several options: Replicate from mySQL to SQL Azure/SQL Server seems like it would be lovely - is this possible? I'd consider using a third party tool and paying $$ if I had to. We're not using anything complicated in the db feature set, it's just data in tables. Get mySQL working on Microsoft Azure - which seems really dicey at best. All the HOWTOs I can find say "this is possible but you really shouldn't try this for production apps." Go non-realtime and do syncs from mySQL to SQL Azure, which may be somewhat expensive and slower. Rip out all my mySQL on Amazon and use SQL Server there, which would make Baby Jesus cry. Has anyone gotten mySQL to SQL Azure/SQL Server replication or syncing working? Or have any other approaches (a NoSQL solution that replicates and might meet our but-we-need-to-join-some-tables needs that can easily be run on Amazon and Azure)?

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  • How to deal with the extremely big *.ost files in a Terminal Server environment which is running out of space

    - by Wolfgang Kuehne
    Our Terminal Server is running out of hard disk space, and the major files which occupy most of the space are *.ost files of the Outook, which come form the users which use the Terminal Server all the time through remote desktop. The Outlook is installed on the Terminal Server and various users can use it. What would be a solution in this case. Is there a way to limit the size of the *.ost files? I read in forums that having the Outlook 2010 set up in Cached Exchange Mode isn't the best practice for an environment where the hdd space is a major constraint. First thing that came to my mind is using folder redirection, and place the ost files (together with the AppData forlder) in a network share, but this does not help, because the ost files are saved a part of the AppData folder which can not be redirected. Then I thought if it is possible to limit the size of the ost file? Or limit the time that it keeps emailed cached, say just emails from the last 6 months are sufficient. Another solutions that came to my mind, moving the ost files somewhere else, this required the old ost file to be removed, and creation of a new one. I am not quite sure if the new OST file will still have cached the emails which where available in the old ost, or will it start caching from where the other one left. What do you suggest?

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