network

OpenGL render transmission in real time

Hi, I'm experimenting with developing a tool for remote OpenGL rendering, in C++. The basic idea is: The client issues OpenGL commands like it's a normal app Those commands are actually sent over the network to an external server The server performs the rendering using some off-screen technique Once done, the server transmits a singl...

How to config computer/phone network to access local web server via USB (Android:GAE)?

Current configuration Use Android emulator and GAE tools (to access local GAE service I set uri http://10.0.2.2:8888/XXX and it works. Question I would like to use Android device(phone) via USB to call web service running on connected "local" computer. What is best configuration practice ((I don't have static IP) I am using mac and ...

How to automatically send print job from "Cloud" server to printer?

A picture is supposed to be worth a 1000 words, so let's see if that can shorten this post up a bit... Essentially, I'm looking into "how" to code a solution that runs on the web server within the cloud that will send a print command to a printer within office 1 (label printer). The print job is really part of work flow within the AS...

Android : Network operations in Appwidget

Hi, I'm developing a Android AppWidget for my application. For updating my appwidget I need to download data from network. But when I try to do that in onUpdate method, my appWidget is killed by Android system. I learnt that time consuming operations can't be done in receivers so I launched a service from onUpdate method and launched a t...

Typical latencies on unladen networks

I'd like to know typical round-trip times on networks in order to determine whether or not they will be the limiting factor in the latency of a whole application. Measuring it on a laden 100Mbps network here I get 95% of pings under 500µs with a median of 400µs. What are typical latencies on unladen networks and how does the bandwidth s...

Creating a P2P / Decentralized file sharing network

Hey all, I was wondering where I could learn more about decentralized sharing and P2P networks. Ideally, I'd like to create something to help students share files with one another over their universities network, so they could share without fear of outside entities. I'm not trying to build the next Napster here, just wondering if this...

Distributed network monitoring - how to tell if the monitored resource has fallen over, or the monitor it's self is at fault

Hi, I'm building a system for monitoring several large web sites (resources), using distributed web services controlled by a central controller. I'm coming to a specific part of the design - the actual reporting of resources that are thought to have fallen over. My problem is that there is always the chance that the actual monitor it...

About network protocol

How do protocols like TCP identify the beginning of a new frame? ...

what is the basic steps to build social network website?

what is the basic steps to build social network without using the websites that provide a free social network? Is it need a separate server? ok I can't buy the server ! How do I can start without spend any money? ...

Perl: How to get IO::Socket::INET timeout after X seconds ?

I'm trying to connect to some host, using invalid port, and i want to get timeout after X seconds. How to do that ? My code: $sock = new IO::Socket::INET( PeerAddr => $_[0], PeerPort => $_[1], Proto => 'tcp', Timeout => 2 ); ...

windows script to detect and fix if the network adapter needs resetting

all, is there any script that I can put on a scheduler to auto reset adapter only if there is a network connection failure? I am running Windows 7 -Jeremy ...

Good Linux TCP/IP monitoring tools that don't need root access?

I want to debug TCP/IP interactions for a program I'm enhancing. I don't have root access (so no tcpdump etc), but the app runs under my own id. I could use e.g. strace to intercept the system calls, but are there alternatives worth recommending over that? If so, why - what do they offer? Command line prefered (no X server installed ...

android emulator access server in local network

hello, i am having difficulties to have my android app running in the emulator to connect to servers in my local network. i am getting a java.net.UnknownHostException but the servers are resolvable fine from the machine where the emulator is run. thanks for any help on this topic! ...

Handling timeout on blocking .NET socket

A TcpClient instance, created with the Accept method, is used for manage a client connection. The problem arise when I need to terminate the server thread, since it is blocked on a receive call. So I setup a the TcpClient ReceiveTimeout in order to loop every n milliseconds to test the exit condition. The result is that the Receive oper...

How do I access files from another computer connected over LAN?

Can anyone provide the resource to learn making connection between computers over the LAN and retrieve files? EDIT: And can I browse the folders like its done in the local machine? ...

Suggest me the some good tutorial/links or ebook to learn about Computer networking security

Hello i am a beginner in the field of computer network security but i want to learn it more, so i can enhance my knowledge in this filed. So please suggest me some good tutorials or ebooks from where i can learn it from starting to advance level. Thanks in advance ...

Is it possible to answer an http request sent to a local network broadcast address?

If I open a browser and send a request to http://255.255.255.255, is it possible have a web server, on the same subnet, listening and respond? ...

Opening a network shared folder with Java Desktop API

Hi, I'm working on an app that exports a file to a network folder specified on a drop down list using the Desktop API. File directory = new File("\\\\server\\XML\\Input"); Desktop desktop = null; if (Desktop.isDesktopSupported()) { desktop = Desktop.getDesktop(); } try { desktop.open(directory); ...

Network connection error with my laptop

I'm having a strange error when trying to use certain web based products. A. Skype cannot connect B. Firefox 3.6 is unable to connect C. I can not use Ftp clients. Filezilla = Connection attempt failed with "EACCES - Permission denied". D. DropBox.com can not connect And a few other web services have this issue. Otherwise it's busi...

CakePhp or Elgg

I'm attempting to create a social network and i want it to be similar to how facebook is designed, but with many major changes to the interface and an entire new montezing system. Should I use elgg, CakePHP, or maybe something else(needs to be PHP)? ...