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  • Not using Web Server for html pages

    - by Manoj
    For an intranet application instead of using a proper web server, it has been planned to just deploy static html pages by sharing it over the network. This static html page is continously updated in the background by a program running on that PC and people access this html page by typing the shared file path directly in the browser. A maximum of 10 simultaneous users are expected to access it. Can any one see the disadvantages or advantages in this type of deployment?

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  • Safest python code running

    - by Oduvan
    How can I protect my web server, if I run custom users code on server. If any user can submit his python source on my server and run it. Maybe some modules or linux tools for close any network and hardware activity for this script. Thank's all for help!

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  • Should I HttpCombine Google Jquery Hosted File?

    - by chobo2
    Hi I am using something called HttpCombiner: http://code.msdn.microsoft.com/HttpCombiner An HTTP handler that combines multiple CSS, Javascript or URL into one response for faster page load. It can combine, compress and cache response which results in faster page load and better scalability of web application It's a good practice to use many small Javascript and CSS files instead of one large Javascript/CSS file for better code maintainability, but bad in terms of website performance. Although you should write your Javascript code in small files and break large CSS files into small chunks but when browser requests those javascript and css files, it makes one Http request per file. Every Http Request results in a network roundtrip form your browser to the server and the delay in reaching the server and coming back to the browser is called latency. So, if you have four javascripts and three css files loaded by a page, you are wasting time in seven network roundtrips. Within USA, latency is average 70ms. So, you waste 7x70 = 490ms, about half a second of delay. Outside USA, average latency is around 200ms. So, that means 1400ms of waiting. Browser cannot show the page properly until Css and Javascripts are fully loaded. So, the more latency you have, the slower page loads. You can reduce the wait time by using a CDN. Read my previous blog post about using CDN. However, a better solution is to deliver multiple files over one request using an HttpHandler that combines several files and delivers as one output. So, instead of putting many or tag, you just put one and one tag, and point them to the HttpHandler. You tell the handler which files to combine and it delivers those files in one response. This saves browser from making many requests and eliminates the latency. This Http Handler reads the file names defined in a configuration and combines all those files and delivers as one response. It delivers the response as gzip compressed to save bandwidth. Moreover, it generates proper cache header to cache the response in browser cache, so that, browser does not request it again on future visit. Now I am wondering since it can handle adding links should I put in it the jquery file? The reason I am not sure is if it gets combined with my other files I think I might close the advantages of it being hosted on googles servers such as caching(my thinking is if it gets combined it will look different so even if a user has it in it's cache I am not sure if it will use the one for the cahce or not). So should I combine it or only the finals that I am using locally?

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  • Write string to fixed-length byte array in C#

    - by toasteroven
    somehow couldn't find this with a google search, but I feel like it has to be simple...I need to convert a string to a fixed-length byte array, e.g. write "asdf" to a byte[20] array. the data is being sent over the network to a c++ app that expects a fixed-length field, and it works fine if I use a BinaryWriter and write the characters one by one, and pad it by writing '\0' an appropriate number of times. is there a more appropriate way to do this?

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  • In node.js slow readable stream attached to a faster pushing message queue eats up memory

    - by Vishal
    In my node.js program I have a response stream attached to a message queue (zeromq) delivering data at a very high rate. Due to slow network connection the response stream and its underlying implementation is unable to consume data at that pace thus occupying a lot of memory. Do you have any suggestion to solve this problem. For reference please see the code snippet below: zmq.on("message", function(data) { res.write(data); // End response on some event });

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  • implementation of TCP/IP for java-me

    - by iamrohitbanga
    java-me uses the internet connection of the mobile device to implement network api's. are there any special features in the implementation of tcp/ip protocol stack for mobile devices or the implementation is essentially the same with a little different parameters like buffer space etc. lets take symbian for example.

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  • What's the best CDN for image hosting on a high-volume web site?

    - by Mike
    Akamai is way too expensive. Photobucket is not reliable. Is there a great content delivery network that I can use just to host my images? We deploy images programmatically via FTP, so there is some programming behind the scenes. Having some sort of reporting about the reliability of the service, whether it's raw logs files or a web-based admin screen that shows http errors, would also be important. Has anyone worked with edgecast?

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  • Wake up thread blocked on accept() call

    - by selbie
    Sockets on Linux question I have a worker thread that is blocked on an accept() call. It simply waits for an incoming network connection, handles it, and then returns to listening for the next connection. When it is time for the program to exit, how do I signal this network worker thread (from the main thread) to return from the accept() call while still being able to gracefully exit its loop and handle it's cleanup code. Some things I tried: 1. pthread_kill to send a signal. Feels kludgy to do this, plus it doesn't reliably allow the thread to do it's shutdown logic. Also makes the program terminate as well. I'd like to avoid signals if at all possible. pthread_cancel. Same as above. It's a harsh kill on the thread. That, and the thread may be doing something else. Closing the listen socket from the main thread in order to make accept() abort. This doesn't reliably work. Some constraints: If the solution involves making the listen socket non-blocking, that is fine. But I don't want to accept a solution that involves the thread waking up via a select call every few seconds to check the exit condition. The thread condition to exit may not be tied to the process exiting. Essentially, the logic I am going for looks like this. void* WorkerThread(void* args) { DoSomeImportantInitialization(); // initialize listen socket and some thread specific stuff while (HasExitConditionBeenSet()==false) { listensize = sizeof(listenaddr); int sock = accept(listensocket, &listenaddr, &listensize); // check if exit condition has been set using thread safe semantics if (HasExitConditionBeenSet()) { break; } if (sock < 0) { printf("accept returned %d (errno==%d)\n", sock, errno); } else { HandleNewNetworkCondition(sock, &listenaddr); } } DoSomeImportantCleanup(); // close listen socket, close connections, cleanup etc.. return NULL; } void SignalHandler(int sig) { printf("Caught CTRL-C\n"); } void NotifyWorkerThreadToExit(pthread_t thread_handle) { // signal thread to exit } int main() { void* ptr_ret= NULL; pthread_t workerthread_handle = 0; pthread_create(&workerthread, NULL, WorkerThread, NULL); signal(SIGINT, SignalHandler); sleep((unsigned int)-1); // sleep until the user hits ctrl-c printf("Returned from sleep call...\n"); SetThreadExitCondition(); // sets global variable with barrier that worker thread checks on // this is the function I'm stalled on writing NotifyWorkerThreadToExit(workerthread_handle); // wait for thread to exit cleanly pthread_join(workerthread_handle, &ptr_ret); DoProcessCleanupStuff(); }

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  • wireless networks c program

    - by Nave
    i wud like to create a wireless network from a laptop. if some laptops come within this range, i wud like to send them a welcome message and when they leave the wifi range, i send them a bye message. is it possible to code such a thing in C? please help me out with this.

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  • How to make the firewall popup a warning to my http server?

    - by user497032
    I integrated a small http server in my software distribution, so when my customer installs my software, a http server is also installed on his computer, he can visit the http server from his LAN (local network). The problem is that my customer has to manually add my software into the firewall's trusted applications list, I want the firewall to AUTOMATICALLY popup warning to let my customer choose yes/no to add my software into trusted applications list when my customer visit the small http server from LAN at first time. Any suggestions?

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  • Windows mobile phone wireless connection - never mind

    - by user01254
    Could anyone please point me to a good tutorial on how to connect a Windows Mobile 6 device to a wireless connection shared on Windows XP ? That is the PC shares the wireless connection (add hoc network ?) and the device connects via Internet Explorer to a server that runs on the PC. I searched a lot and did not find a tutorial that addresses my problem. All were either outdated, either incomplete or incorrect. NEVER MIND.

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  • Is there a way to implement OnReady() callback in Qt4?

    - by lilo
    I want to do something which will access network when a QMainWindow is ready. I suppose I should not do it in the constructor, so I try to find a signal the widget will get and try to implement something like a OnReady() call back in other UI library. But I still can not find a way to do this. Thanks a lot in advance.

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  • C++ Libraries similar to C#?

    - by cam
    I'm coming to C++ from a .Net background. Knowing how to use the Standard C++ Libraries, and all the syntax, I've never ventured further. Now I'm looking learning a bit more, such as what libraries are commonly used? I want to start getting into Threading but have no idea to start. Is there a library (similar to how .net has System.Threading) out there that will make it a bit easier? I'm specifically looking to do Linux based network programming.

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  • Jquery ajax using asp.net does not work on IE9 during the 2nd call of the function?

    - by randelramirez1
    I have gridview that is loaded from another aspx page after an ajax call, the problem is it works on chrome/firefox/safari but using ie9 the ajax call would work fine during the first call but when i try to call the function again it throws an 304 status on the network tab of ie9 dev tool and the gridview is not refreshed. Here is the jquery code: <%@ Page Language="C#" AutoEventWireup="true" CodeFile="LoadCoursesGridViewHere.aspx.cs" Inherits="CoursesGridView" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title></title> <script src="Scripts/jquery-1.8.2.js" type="text/javascript"></script> </head> <body> <form id="form1" runat="server"> <div id="Gridview-container"> <asp:GridView ID="GridView1" runat="server"> </asp:GridView> </div> <asp:TextBox ID="TextBox1" runat="server" ViewStateMode="Disabled"></asp:TextBox> <%-- <asp:Button Text="text" ID="btn" OnClientClick=" __doPostBack('UpdatePanel1', '')" runat="server" />--%> <input type="button" id="btn" value="insert"/> </form> <script type="text/javascript"> $("#btn").click(function () { var a = $("#TextBox1").val(); $.ajax({ url: 'WebService.asmx/insert', data: "{ 'name': '" + a + "' }", contentType: "application/json; charset=utf-8", type: "POST", success: function () { // alert('insert was performed.'); $("#Gridview-container").empty(); $("#Gridview-container").load("GridViewCourses.aspx #GridView1"); } }); }); </script> </body> </html> What happen is that after click the button it will insert the textbox value in the database through the webservice 'insert' and then reload the gridview that is placed inside a different aspx page. The problem is that when I ran it on IE9 during the 1st insert everything works properly but the succeeding inserts does reload the gridview and I noticed that it says '304' on the network tab of ie9 dev tool.

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  • using windows service can we copy files from one computer to another computer C#.net ?

    - by Harry
    I have one service that will create a text file to local machine and then need to copy the same file to another server . I am using " File.Copy(SourceFilePath, TargetFilePath, true);" and getting an exception at the target file path "access denied. I am able to copy the files manually to that location ( TargetFilePath) . any idea , what is going wrong ?? I don't have any network drive mapping with this target location. Thanks in Advance

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  • Cookiless Session Is it a security

    - by Costa
    Hi http://msdn.microsoft.com/en-us/library/aa479314.aspx You have a user who successfully log in from a machine in Cybercafe, Hacker H able to sniffer the network and get the sessionID of the user, Can H use the sessionId and act as the user from another machine? Can H enter http://folder/(session id)/CreditCardInformation.aspx to know the credit card number of the user. Thanks

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  • Bypass Credential dialog box of internet explorer

    - by m23
    My c# application opens the Internet explorer for different web URL/ domains. And I have all those credential information (username, password and domain name) stored in the database for each web application. Now how I can authenticate automatically without entering credential in “Network Credential” dialog box using code or bypass that dialog box? In other words I need to store those credential on system so no need to enter. I am using c#

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  • How to delete a file with javascript?

    - by Tommy
    Did not have luck with these examples: Javascript File remove Javascript FSO DeleteFile Method Deleting a File There are no special permissions on the file. Is there a way to do this in JQuery? The requirement is - a certain file must be deleted from the web directory when another page is loaded. There is no security issue as this is on a closed network. Any help is appreciated. Thanks.

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