network

Standard Deviation when transmitting data

Hi Guys, I am solving some examples from Data Networks by Gallager and i didnt quite understand this particular question. The question goes as follows: Suppose the expected frame length on a link is 1000 bits and the standard deviation is 500 bits Find the expected time and standard deviation of the time required to transfer a million...

Is NetStream only for use with FMS and Stratus?

Hello I want to use a Microphone to capture voice and encode that with Speex and then send it over a NetStream to a server. However does only FMS (Flash Media Server) and Adobe Labs Stratus (some p2p thingy) work as server software? If that is the case can I use the sampleData event of the Microphone class to capture sound and send it o...

Sniffing detection

Hi, Can someone tell me how exactly works "test ICMP"? (One of methods to detect sniffing in local network) ...

Aborting non working thread

I have I multi thread application written by c#, my max thread number is 256 and this application gets the performance counters of the computers in an Ip interval(192.168.1.0 -192.168.205.255) it works fine and turns many times in a day. because I have to get reports. But the problem is some times one machine keeps a thread and never f...

Noob questions for SVN checkout and network issues regading it.

We have a local server with SVN installed on it that we are using for development/testing purpouses. We would like to checkout the data from it to the live server that is somewhere out there. The only way to do that which I thought of was to use "svn checkout" from the live server, right? This way we do not need to FTP the changes to it...

Is it possible to check who is connected to your wireless network?

So after hours of research i have found nothing about this question. Is it possible to see who is connected to my wireless network using C#? Example: I have 2 Laptops - Laptop A and Laptop B. A is on running my program I made and connected to my wireless network. B is starting up and connects to my wireless network. A can now see tha...

Ways to design a network application

In the context of a multi-user business application in a small office, what are the disadvantages of installing the client on each PC and having them connect directly and remotely to a SQL server database on a central server? This seems to avoid the need to include .Net remoting (or similar) technology and so install DLLs on the central...

What's wrong with those strongswan config files?

Hi I am trying to setup an ipsec tunnel between 2 linux boxes (archlinux) with strongswan 4.4 but I have got errors on both machines that I couldn't solve. moon: ipsec.conf - strongSwan IPsec configuration file basic configuration config setup # plutodebug=all crlcheckinterval=180 strictcrlpolicy=no ...

How to create a new dial connection in java?

In my application user has to create a new dial up network connection in windows but i want to do this programmatically.Is there any API present in java that can help me for creating new network connection. ...

Networks & relative security

Hi, I was wondering which of these networks would you feel most comfortable logging into e.g. your bank account and why 3g mobile phone connection University campus LAN university campus wifi, wpa University campus wifi no encryption. Proxy login does the choice matter if the site uses ssl? Won't that encrypt the login info anyway? ...

What's the difference between tagged and untagged port in a VLAN configuration?

What's the difference between tagged and untagged port in a VLAN configuration? Switch model: hp ProCurve 1810G-24 cheers daniel ...

Get network tracing information without enabling tracing

I'm writing a little proxy server, and I'm trying to debug a problem. If I refresh the browser twice quickly, my proxy throws an exception, usually with no stack trace or indication of where the problem is. I have a hunch it has to do with a socket being closed prematurely by the browser, or being used for two different requests in my pr...

Client computer name in java

I want to find client computer name in java. My applciation runs in intranet. so i am using below code public String findClientComputerName(HttpServletRequest request) { String computerName = null; String remoteAddress = request.getRemoteAddr(); System.out.println("remoteAddress: " + remoteAddress); try { Ine...

accessing network path and copy file to the system = c#

i want to create a small c# application. there is a text box and a button in form. if anyone enter a network path for a file and press the button, then the application must copy that file to a folder within that system. How can i do this.? How to access a network path and how can i copy the file in that path to the system?? ...

Troubles installing OMNet++ Couldn't reserve space for cygwin's heap win32 error 6

How can I solve this? I'm reading the installtion guide at http://omnetpp.org/doc/omnetpp41/InstallGuide.pdf I'm working on Windows XP m.AllocationBase 0x0, m.BaseAddress 0x715A0000, m.RegionSize 0x480000, m.State 0 x10000 C:\omnetpp\msys\bin\sh.exe: *** Couldn't reserve space for cygwin's heap (0x715A 0000 <0xC90000>) in child, Win32 ...

How to put NIC into promiscuous mode?

Hi I want to put my NIC into promiscuous mode. Why? Because I wrote app which is able potentially to detect sniffing in my local network (send modyfied appropriately ethernet packets). I just want now check it out, so in my second comp I want to set up promisc mode. There's Windows 7 and simply Dell Wireless 1397 WLAN Mini-Card...if it...

PHP/Javascript: Tell two computers apart from same network

I'm developing a site where you are not allowed to login on multiple accounts on one computer, but I do not know how to do this. The method has to be: Cross-platform (can be used on Windows/Mac/Linux clients). Browser independent. This is to avoid some users exploiting multiple users to gain unfair advantages, while still allowing tw...

Eclipse helio update site could not be connected

Hi, I am using Eclipse helios. When I try to use the update it could not connect to the update site giving error, Unable to read repository at http://download.eclipse.org/releases/helios/content.xml. Unable to read repository at http://download.eclipse.org/releases/helios/content.xml. Permission denied: connect I am using Widnows vist...

Cell Phone Tapping

How is it possible to tap a cell phone or a prepaid number? If i know someone's number, can i do something to tap his conversations?? I just want to know as some friend said that he has done this to my phone. he has never even seen my cell phone. Is it possible? ...

make a folder on remote machine as writable

Is there any way to make a folder on a remote machine as writable. i have the username and password of remote machine with admin privileges. I want to make that folder as writable programmatically. i prefer c# to do it ...