I'm talking about http://en.wikipedia.org/wiki/Quality_of_service. With streaming stackoverflow podcasts and downloading the lastest updates to ubuntu, I would like to have QoS working so I can use stackoverflow without my http connections timing out or taking forever. I'm using an iConnect 624 ADSL modem which has QoS built-in but I ca...
I would like to set up VPN access for people in my company to use when they are working from home and on the road. We have a VPN service built into our Watchgard firewall, but it requires a Windows-only custom client and some of our employees have Macs or Linux computers. I am not any sort of networking expert so the solution would nee...
Using NSURLRequest, I am trying to access a web site that has an expired certificate. When I send the request, my connection:didFailWithError delegate method is invoked with the following info: -1203, NSURLErrorDomain, bad server certificate My searches have only turned up one solution: a hidden class method in NSURLRequest: [NSURLReq...
I know this is not programming directly, but it's regarding a development workstation I'm setting up...so bare with me. I've got a Windows Server 2003 machine that needs to be on two LAN segments at the same time. One of them is a 10.17.x.x LAN and the other is 10.16.x.x The problem is that I don't want to be using up the bandwidth on...
Some things look strange to me: What is the distinction between 0.0.0.0, 127.0.0.1, and [::]? How should each part of the foreign address be read (part1:part2)? What does a state TimeWait, CloseWait mean? etc. Could someone give a quick overview of how to interpret these results? ...
I have a client/server application that communicates with .Net remoting. I need my clients to be able to find the server(s) on the network without requiring client-side configuration. As far as I know, there is no support for discovery in remoting. I am prepared to implement a UDP solution where the clients will be able to find the ser...
Besides "no connection", what other failure modes should I test for? How do I simulate a high-latency link, an unreliable link, or all the other sorts of crazy stuff that will undoubtedly happen "in the wild"? How about wireless applications--how do I test the performance in a less-than-ideal WL environment? ...
After reading a bit more about how Gnutella and other P2P networks function, I wanted to start my own peer-to-peer system. I went in thinking that I would find plenty of tutorials and language-agnostic guidelines which could be applied, however I was met with a vague simplistic overview. I could only find very small, precise P2P code w...
I haven't been to enough of these "live" events to really determine which, if any, are worth the time / money. Which ones do you attend and why? ...
I am charged with designing a web application that displays very large geographical data. And one of the requirements is that it should be optimized so the PC still on dial-ups common in the suburbs of my country could use it as well. Now I am permitted to use Flash and/or Silverlight if that will help with the limited development time ...
I use my mobile phone for connection to the internet on my laptop, I also have a wired connection to a LAN which doesn't have internet conectivity, it just has our TFS server on it. The problem is that I can't use the internet (from the phone) with the LAN cable plugged in. Is there a way to set the default route to my phone? I'm runni...
I'm working on a .net solution that is run completely inside a single network. When users make a change to the system, I want to launch an announcement and have everyone else hear it and act accordingly. Is there a way that we can broadcast out messages like this (like UDP will let you do) while keeping guaranteed delivery (like TCP)? ...
Wifi support on Vista is fine, but Native Wifi on XP is half baked. NDIS 802.11 Wireless LAN Miniport Drivers only gets you part of the way there (e.g. network scanning). From what I've read (and tried), the 802.11 NDIS drivers on XP will not allow you to configure a wireless connection. You have to use the Native Wifi API in order to do...
Obviously there are security reasons to close a wireless network and it's not fun if someone is stealing your bandwidth. But how much of a problem is this? To address the first concern: Does a device on the same wireless network have any special privileges or access that an other device on the internet has? (Assume the wireless networ...
The leaving your wireless network open question reminded me of this. I typically share the root drive on my machines across my network, and tie login authorization to the machines NT ID, so there is at least some form of protection. My question, how easy is it to gain access to these drives for ill good? Is the authorization enough, or...
I would like to retrieve the ethernet address of the network interface that is used to access a particular website. How can this be done in Java? Solution Note that the accepted solution of getHardwareAddress is only available in Java 6. There does not seem to be a solution for Java 5 aside from executing i(f|p)confing. ...
In one of the answers to Broadcast like UDP with the Reliability of TCP, a user mentions the Spread messaging API. I've also run across one called ØMQ. I also have some familiarity with MPI. So, my main question is: why would I choose one over the other? More specifically, why would I choose to use Spread or ØMQ when there are matu...
I'm writing C# code that uses the windows IP Helper API. One of the functions I'm trying to call is "GetBestInterface" that takes a 'uint' representation of an IP. What I need is to parse a textual representation of the IP to create the 'uint' representation. I've found some examples via Google, like this one or this one, but I'm pretty...
Consider the following setup: A windows PC with a LAN interface and a WiFi interface (the standard for any new laptop). Each of the interfaces might be connected or disconnected from a network. I need a way to determine which one of the adapters is the one connected to the internet - specifically, in case they are both connected to diffe...
I've written some applications than heavily use network, and I would to test it over a slow network. I'm looking for a tool to simulate this kind of connections. Edit: I'm only interested in Windows tools ...