Hello, C# 2008 I am using this code to test for an internet connection. As my application will have to login to a web server. However, if the user internet connection was to fail or cable pulled out. I will have to notify the user. // Ping www.google.com to check if the user has a internet connection. public bool PingTest() { Pin...
Is it possible to emulate incoming messages using Indy (if it's of any importance: I'm using Indy 10 and Delphi 2009)? I want to be able to create these messages locally and I want Indy to believe that they come from specific clients in the network. All the internal Indy handling (choice of the thread in which the message is received and...
I need to add a route into the IP4 routing table on windows xp. However, the Win32_IP4RouteTable class seems to only be able to query existing routes. Basically I need the same functionality as: route ADD 192.168.127.254 MASK 255.255.255.255 192.168.1.10 Is it possible to use WMI to add an entry into the IP4 routing table? Could I ...
Hello, VS 2008 I am developing an application that has to detect whether a client has a network connection. i.e. LAN cable plugged in or wireless switched on. I have been using the code below. I am using the NetworkAvailabilitychangedEvent to fire an event when their wireless is turned off or the cable has been pulled out. However, th...
While talking about UDP I saw/heard congestion come up a few times. What does that mean? ...
My current class is planning on creating a basic networked game, but we have decided to take on the task of making a C++ server with a C# client. I understand this is probably a difficult task, but I was wondering if there is any advice on making this happen. I am sorry I do not have any more information than this. We are just getti...
In a Linux environment, I need to detect the physical connected or disconnected state of an RJ45 connector to its socket. Preferably using BASH scripting only. The following solutions which have been proposed on other sites do NOT work for this purpose: Using 'ifconfig' - since a network cable may be connected but the network not pro...
I am interested to know how the DNS requests to political sites differ in different countries. I need to know how I can send a DNS query to a remote computer, let say, in China. Then, I want to compare the results to US. The goal of the experiment is to get a hand-on experience on the concept about DNS poison. I feel my lectures so the...
How similar is distributed computing and threading? I've found two papers coming to quite opposite conclusions: "Multi-Threading is Easier Than Networking. How threading is easy and similar to network code" http://software.intel.com/file/14723 (this gives me an impression that they're so similar that after encapsulation these two appr...
Entering "udp://host:666" in the location bar doesn't work very well. Is there any work-around for sending a single "empty" datagram to a host using an ordinary web browser? The response is no issue since the use case I'm think about is port knocking ("http://host:666" doesn't work well since browsers tend to repeat the request if there...
Hi, I have a program that it need get the source address from the struct "skbuff", In the previous kernel version, I can get the "saddr" using the following line: static __u32 get_src_ip(const struct sk_buff *skb){ return ntohl(skb->nh.iph->saddr); } The following is error message: error: 'const struct sk_buff' has no member name...
Hello! I want to test a piece of code that uses network (the NSURLConnection class, to be specific). The code (let’s call it NetworkManager) looks a bit like this: - (id) buildConnection { // some more code and then: return [NSURLConnection …]; } - (void) startNetworkSync { id connection = [self buildConnection]; //… }...
I'm building a network server and starting a lot of AppDomains on the server to which requests are routed. What will be the fastest way to send off a request payload to one of the AppDomains for processing? Read in the payload from the socket into a byte array and marshal it. Marshal the network stream (inherits from MarshalByRef) to t...
Hello, VS 2008 I am using the code below to detect if the client can connect to our sip server. This was working fine. However, the client has changed there network and now my application has to connect to the sip server from behind a proxy server. The error I get is the "A connection attempt failed because the connected party did not...
Given an ip address (say 192.168.0.1), how do I check if it's in a network (say 192.168.0.0/24) in Python? Are there general tools in Python for ip address manipulation? Stuff like host lookups, ip adddress to int, network address with netmask to int and so on? Hopefully in the standard Python library for 2.5. ...
Hi I've been using RMI for a project I am currently working on and I want to bind from multiple hosts to a single RMI registry. However when I attempt to do so I get an error saying java.rmi.AccessException: Registry.Registry.bind disallowed; origin / 192.168.0.9 is non-local host I did so googling and it seems that RMI stops remote...
Is there any difference between the following when a intranet URL in accessed in IE Add an entry in drivers/etc/host file for a name and IP vs Use IP directly e.g. it works with the following link if I have a host entry as (XYZ 10.0.10.200) http://XYZ/SiteDirectory/ABC/Default.aspx but when I tried to use IP instead of name http://1...
I'm playing around with retrieving the MAC address from the NIC - there are a variety of ways to get it, this article covers the most common: http://www.codeguru.com/Cpp/I-N/network/networkinformation/article.php/c5451 I'm currently using the GetAdaptersInfo method, which seems the most bulletproof, but if the MAC address has been set ...
So I have an Apple Airport Extreme base station that I use to create a wifi network at my house. But on a separate story from this station i have a PC (running Windows 7) that does not have a wireless card. Luckily, I have another Airport Extreme Base Station, so I figured I'd have my second station "extend" the existing network. I as...
I have a small network in which there are 2 electronic devices and one desktop connected using a switch. Through the desktop with Ethereal/wireshark installed on it, can I sniff the packets that are being communicated between the 2 electronic devices? I cannot install ethereal or wireshark on either of the electronic devices, but need t...