networking

a wifi device to connect with a modem

i want to know is there any device to connect with my PTCL modem? that can make it wifi enabled...... it have 4 ports to connect my pc with cables i have heard that there is a device that will connect to the modem and enable it as wifi... ...

Allow outgoing connections using 'iptables'

Greeting all, "iptables -L" gives the following output [root@ibmd ~]# iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source d...

capturing dns packets using java

I want to log the websites visited in a system. So i decided to record the packets send by the system. I am using Jpcap API. I am able to record a lot of packets. Now what i want to do is i want to filter only DNS packets. I think that will be able to log the websites. I want a way to filter the DNS packets. How can I do it? ...

Can Java ServerSocket and Sockets using ObjectIOStreams lose packets?

I'm using a ServerSocket on my server and Sockets that use ObjectIOStreams to send serializable objects over the network connection. I'm developing an essentially more financial version of monopoly and thus packets being sent and confirmed as sent/received is required. Do I need to implement my own packet loss watcher or is that already...

Hessian vs Tibco rv

I'm looking to contrast Tibco rv and Hessian in terms of performance - for a Java application. Any pointer to get me started appreciated. thanks. ...

3d engine with telnet access

Does anyone know of a open source 3d engine which can be operated via telnet? What I'm looking for is scripting via a socket connection. To allow for world creation and/or camera movement. Does anybody know of any that has this built in or very, very easy to add as a plugin or script? The platform is not crucial. ...

How to debug packet loss ?

I wrote a C++ application (running on Linux) that serves an RTP stream of about 400 kbps. To most destinations this works fine, but some destinations expericence packet loss. The problematic destinations seem to have a slower connection in common, but it should be plenty fast enough for the stream I'm sending. Since these destinations a...

How can flash open a port to listen for server requests?

Is it possible for flash to open ports to listen for messages from the remote server? If so, how? ...

What's a way for a client to automatically resolve the ip address of a server?

The project I am working on is a client/server architecture. In a LAN environment, I want the client's to be able to automatically determine the server's address. I want to avoid having to manually configure each client with the ip address of the server. What is the best way to do this? Some alternatives I have thought about doing ar...

Java Port Socket Programming Error

Hi- I have been working on a java client-server program using port sockets. The goal of this program is for the client to take a screenshot of the machine it is running on, break the RGB info of this image down into integers and arrays, then send this info over to the server, where it is reconstructed into a new image file. I run these f...

Modifying all HTTP requests on iPhoneOS with MobileSubstrate?

I want to write a MobileSubstrate (http://www.iphonedevwiki.net/index.php/MobileSubstrate) addon that takes every HTTP request and modifies the URL. (The reason is very complicated and would take a while to explain, so just trust me that there's not an alternative). Basically, I need to know what's the best Objective-C message or C funct...

linux: disable using loopback and send data via wire between 2 eth cards of one comp

Hello I have a comp with 2 eth cards, connected with patch-cord (direct eth. cable from 1st to 2nd). The linux is installed, I want to send data from 1st network card to 2nd. And I want to force the packet to pass via cable. I can set up any ip on cards. With ping I get counters on cards constant. Is it possible with tcp/ip sockets? ...

Send SYN packet in C#?

Hi, I am wondering whether it is even possible or I cannot do such a raw socket manipulation? If so, how can I try it? I am not trying to do this old DoS attack, just curious how to send it thru C#. Thanks ...

Reading data from a socket

I am having issues reading data from a socket. Supposedly, there is a server socket that is waiting for clients to connect. When I write a client to connect() to the server socket/port, it appears that I am connected. But when I try to read() data that the server is supposedly writing on the socket, the read() function hangs until the...

NSStream sockets missing data

I am trying to pull some sample data from FreeDB as a proof of concept, but I am having a tough time retrieving all of the data off the incoming stream (I am only getting the last bits for the final query listed here (if handshakeCode = 3) I think this may be something with the threading on the main runloop, but I am not sure. Odd thing...

Networking exercises

Are there any books or websites that have examples of protocol exercises, such as sliding window protocols and IP subnetting? ...

Block internet connection for windows 7 using c#

Hey guys just I wanted to know if there is a way to block internet access to my PC by writing code in c#. I'm using windows 7, a way to control the firewall will also help, I've seen solutions for XP and vista , but didn't find any for '7'. Thanks:) ...

Passing around objects to network packet handlers ?

Hey, I've been writing a networking server for a while now in C++ and have come to the stage to start looking for a way to properly and easily handle all packets. I am so far that I can figure out what kind of packet it is, but now I need to figure out how to get the needed data to the handler functions. I had the following in mind: ...

SslStream.BeginRead Method example

Hi, Regarding this article: http://msdn.microsoft.com/en-us/library/system.net.security.sslstream.beginread.aspx Is there any code example on how to actually implement this method? Any link will be appreciated, Thanks, ...

Toggle Local Area Connection Property (check box) using Power Shell

I have the Check Point VPN client installed and frequently must toggle the local area connection property (check box) on and off. I have looked at doing this with Power Shell and have found the following. $colItems = get-wmiobject -query "Select * From Win32_NetworkAdapterConfiguration" | Where-Object {$_.Description -like "Secu"} fore...