The networking tag has no wiki summary.
4
votes
1answer
229 views
Greek philosophers, stone tablets and dumb slaves problem [closed]
This is one of the questions that I came across while preparing for a programming interview.
Design a system for Greek philosophers to exchange messages using stone tablets carried by dumb ...
-2
votes
1answer
103 views
c#: Push notification for games [closed]
I'm new to game development, I want to develop games for windows phone, I have no problem with programming the games, but I don't know how to make it online. I did some reaserch, and I stumbled upon ...
1
vote
0answers
35 views
Scuttlebutt Reconciliation from “Efficient Reconciliation and Flow Control for Anti-Entropy Protocols”
This question might be more suited to math.stackexchange.com, but here goes:
Their Version
Reconciliation takes two parts-- first the exchange of digests, and then an exchange of updates. I'll first ...
0
votes
0answers
131 views
Android Design - Service vs Thread for Networking
I am writing an Android app, finally (yay me) and for this app I need persistant, but user closeable, network sockets (yes, more than one). I decided to try my hand at writing my own version of an ...
0
votes
1answer
50 views
Handling Server Response Timeouts [duplicate]
Consider the following scenario :
User sends a request to transfer money.
Server receives the request and transfers the money but the reply times out.
The app reports failure.
So the user tries to ...
7
votes
3answers
1k views
What skills (technologies) get outdated slower? [closed]
It's a common knowledge that since the IT industry develops very quickly, most of the skills get outdated fairly rapidly: jQuery, .NET, Ruby on Rails, etc. They change all the time so that it is ...
2
votes
1answer
112 views
Is doing some work for credit worthwhile?
Not sure how to title this as it's not just about that. But suppose that there is a software like .NET BCL, and you notice some places where you can make things much faster. It's not a great example ...
1
vote
3answers
455 views
Does data size in TCP/UDP make a difference on transmission time
While discussing the development of a network component for our game engine, a member of our team suggested that transmitting either 500 bytes or 1k of data using UDP makes no difference from ...
7
votes
3answers
474 views
How to sync clocks over networking for game development?
I'm writing a game that has a lot of time based aspects. I use time to help estimate player positions when the network stalls and packets aren't going through (and the time between packet's being ...
1
vote
1answer
189 views
alternative to environment variables
The amount of servers and the complexity of our application is growing and we now have servers in different regions (hosted on AWS). Certain database operations require low latency so we have stuck a ...
0
votes
1answer
344 views
How to calculate throughput if there is network traffic
I came across this question in a textbook, but there are no solutions and I'm not sure how to solve this.
The question is: Suppose Host A wants to send a large file to Host B. The path from Host A to ...
0
votes
1answer
310 views
Base64 decode and SH1 decryption of Sec-WebSocket-Accept value example from Websocket RFC
I am planning to implement the Websocket protocol and currently learning how handshake headers must be structured.
According to this link
http://datatracker.ietf.org/doc/rfc6455/?include_text=1
...
3
votes
2answers
116 views
Prevent anomalies caused by signal propagation time
In electrical engineering class we learned that signal lines are not ideal, so it takes time for the signal to reach the other end of the cable, and if we doesn't take this into account, it can lead ...
0
votes
0answers
32 views
VNC client for my netbeans IDE to invite the freelance developers in my project? [duplicate]
I need your help to find a VNC client software or any other distributed software development techniques to share my netbeans IDE with some freelancers over the internet,
Well I have a complex web ...
0
votes
1answer
120 views
Are Python sockets suitable for file synchronization?
I'm working in an organisation with limited funds. They can't afford a business account on Dropbox. However, they would find it useful to have all their files synchronized on local machines.
I've ...
0
votes
2answers
162 views
Use client to access database or server to access database
I' creating a client server application in which I need to update a particular database. I'm using python with MySQL. There are two options:
I use a client.py and server.py, the client.py can send ...
2
votes
3answers
359 views
How to get a Web Application to communicate between users
I am developing a multipalyer web Application for Anti-Chess. It would be hosted on Google App Engine.
I have a few questions:
How do I get two different users who have opened the webapp on their ...
2
votes
1answer
2k views
Non Blocking Sockets vs Blocking sockets - UDP - C&linux
When to use blocking sockets over non blocking sockets on UDP?
Question 1:What's is recommended for the following scenario ?
Multiple clients send data over multiple UDP sockets, i.e. say client1 ...
1
vote
6answers
627 views
UDP order of packets with direct connection
If i have two systems (A and B) running on LAN(INTRANET) which are directly connected. There are no routers in the middle. In this case, if system A sends a few UDP packets every few milliseconds to ...
1
vote
1answer
181 views
Handling timeout in network application
How can I handle timeouts in a network application.
I'm implementing a provisioning system on a Linux server, the code is huge so I'm going to put the algorithm, it works as like this
Read ...
0
votes
1answer
115 views
Server distribution for high performance
I've developed a Socket Application on top of TCP in .NET C#, which allows many clients to send files from one another via a VPS I'm using. Most file transfers will occur between people in the same ...
2
votes
4answers
254 views
Theory about software communications mixing up with other software causing an Apocalypse?
I can remember a very Very long time ago (pre Y2K) , reading an article by some "expert" that theorized that software communicating over the internet, especially video games could get mixed up with ...
0
votes
1answer
65 views
How can a server initiate request in SIP protocol?
Either a client or a server can initiate request in SIP. How is it possible? How will the server know about the client?
2
votes
1answer
282 views
Game Netplay Rollback System
Can one explain the specifics and details of a netplay framework for a game that optimizes connection through a "prediction / rollback" mechanic, as seen in games where speed is a priority ...
-2
votes
5answers
206 views
How to better performance [closed]
In one of my interviews I was asked a vague question, I'm still not sure of the answer. We have a client and a server they are placed apart. The network that connects them has high latency, which is ...
3
votes
1answer
171 views
Sockets intricacies in TCP and UDP
I am quite familiar with TCP and UDP. I understand the process by which TCP establishes connections and other theoretical facts about TCP but when reading up about TCP hole punching for NAT ...
1
vote
1answer
247 views
What happens when an unexpected packet arrives at a computer? [closed]
I have been wondering this for a few days. I basically understand how networks and packets work. But what happends when an unexpected packet arrives? Like, when I didn't send a request for a website's ...
1
vote
2answers
177 views
Implementing the transport layer for a SIP UAC
I have a somewhat simple, but specific, question about implementing the transport layer for a SIP UAC.
Do I expect the response to a request on the same socket that I sent the request on, or do I let ...
2
votes
1answer
86 views
How does recording video and playing it back in realtime work? [closed]
I am looking to understand how recording video (and audio) and playing it back in realtime work (on the same pc or over a network)? I understand for a file stored on the disk. You read it and play it ...
68
votes
6answers
11k views
Difference between a socket and a port
Could someone please explain quite clearly the difference between a port and a socket. I know that a port serves as a door into the network for an application
process and that the application process ...
3
votes
1answer
69 views
Event system architecture for networking when performance is concerned
How should I design a system for an action game (think in Golden Axe) where events can happen remotely?
I'm using TCP for this because the client is in flash.
There's so many options, I can make a ...
2
votes
1answer
157 views
Setting source IP with posix sockets
Is it possible for an application to request a socket (tcp) and have it set the source address without using raw sockets? (the addresses would be bound to the interfaces. [no spoofing]).
This would be ...
0
votes
3answers
422 views
Reconstruct a file from a TCP stream
I have a client and a server and a third box which sees all packets from the server to the client (but not the other way around). Now when the client requests a file from the server (over HTTP), the ...
0
votes
2answers
355 views
Would a typical corporate firewall block a Java applet having the following behaviour
I'm thinking of developing a proxy-like program to forward ports on a remote PC to a local PC (for example SSH).
Assume that both local and remote PCs are running behind typical firewalls (i.e. ...
1
vote
1answer
567 views
Serializing network messages
I am writing a network wrapper around boost::asio and was wondering what is a good and simple way to serialize my messages. I have a message factory which can take care of dispatching the data to the ...
0
votes
1answer
80 views
Why are there proxy processes between clients and logic processes in C/S application?
In real world networking software following c/s model, there are always proxy server processes between clients and server processes dealing with business logic, why we need proxy to isolate the logic ...
2
votes
4answers
218 views
Cross language remoting and serialisation [closed]
I need to create add network communication to a server written in the Java that will be connected to through a C# application.
I have very little experience in networking and I'm struggling to decide ...
10
votes
3answers
185 views
How could I avoid a distributed deadlock during a mutual connection between two nodes?
Suppose we have two peer nodes: the first node can send a connection request to the second one, but also the second one can send a connection request to the first one. How to avoid a double connection ...
1
vote
1answer
124 views
How related is coding/information theory to computer networking?
I am taking a networking class(data communication) this coming semester. In many courses in my computer engineering degree, the books lack mathematical content. I am not a math wizard, but I think ...
5
votes
1answer
198 views
QoS implementation algorithm
I'm working on an application, that does IP routing and QoS. Today we have the QoS implemented, with 3 priorities (low, normal and high) and for each level we create a Queue and as soon as the ...
13
votes
2answers
498 views
What is Curiosity's packet structure?
For NASA's Interplanetary Network, what does a packet look like? It's obviously a form of redundant protocol, stored at the receiver and with built back up. Is there any documentation on the packet ...
1
vote
4answers
248 views
Is restricting sessions to an absolute IP likely to have a wide impact on mobile networks?
Our website currently restricts a cookie-based session to the IP address that was originally sent the Set-Cookie HTTP header. In the past a user's IP would rarely change, so this didn't present much ...
1
vote
2answers
663 views
Is it wrong to push messages from server to client in a client-server application?
I practically never see any web application where server pushes messages to the client. While pushing messages from server to client is hugely used in multiplayer games, why this model is so underused ...
0
votes
1answer
107 views
Multiplayer Game Listen Servers: Ensuring Integrity
I'm making a simple multiplayer game of Tic Tac Toe in Python using Bridge (its an RPC service built over a message queue - RabbitMQ) and I'd like to structure it so that the client and the server are ...
8
votes
1answer
3k views
Why did Golang discontinue the “netchan” package?
The Golang "netchan" package seems to have been discontinued.
That makes me think that the concept of "networked channels" were not a good practice after all. (Why wouldn't them just "let it be" ...
-1
votes
1answer
182 views
Any one ever heard of the term collapsed Backbone? [closed]
Any one ever heard of the term collapsed Backbone? Could it be a virtual network that could be referred also to this term.
2
votes
2answers
263 views
Communication between state machines with hidden transitions
The question emerged for me in embedded programming but I think it can be applied to quite a number of general networking situations e.g. when a communication partner fails.
Assume we have an ...
0
votes
2answers
401 views
tcp retransmission queue
I'm trying to understand how tcp retransmission queue works so I can implement it in my application that uses TCAP over SCTP.
What I understood from the TCP queue is that every message is saved in ...
1
vote
4answers
504 views
data structure for file search
I've asked this question before and I got a few answers/idea but I'm not sure how to implement them.
I'm building a telecom messaging solution, currently I'm using Database to save my ...
1
vote
1answer
239 views
Sharing SCTP connection with multiple threads
I have an application that needs to run in SCTP environment, I have a question in sharing the connection among multiple threads for packet receiving only, I've tried with the sctp_sendmsg and it ...
