Questions tagged [networking]
Networking is associated with creating and managing networks as well as adding network connectivity to a (set of) programs.
298
questions
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Java implementing task on another thread with javascript-like promise resolve-reject
Background:
I have a TCP online multiplayer game server, which the player requests to log-in. However, the game server does not handle the authentication part of the login process, instead, it uses ...
2
votes
2answers
110 views
ICMP ping all hosts in a range
I'm creating my own little toolbox for pinging IP interfaces (for the test, only in localhost). In the future I'm thinking of piping the output to a text file. But I'd like to focus on improving the ...
2
votes
0answers
11 views
Auto re-connecting to a VPN on OS X and pointing Squid accordingly
We need to tunnel certain applications over a VPN at work. Ideally we would use a dedicated firewall/network appliance for this but the only permanent infrastructure we have are Mac Pro's running ...
3
votes
1answer
56 views
Token Bucket context manager for rate limiting async calls
I've written a class that implements something akin to the token bucket algorithm so that I may rate limit aysnc HTTP requests made from my application.
The code works but I'm still not sure if it ...
3
votes
0answers
36 views
Network connection monitor
I was recently in need of a class that checks if a computer has a valid internet connection, so I wrote one; however, I feel that there is a better way to do so and I just don't have the knowledge ...
3
votes
1answer
41 views
Network programming - asynchronous, single-threaded, nickname-only chat server
I am starting to learn network programming. I have implemented a very simple chat server based upon TCP, where the users only need to provide username.
The assumption is that the server makes use of ...
5
votes
1answer
79 views
Streaming Messages to multiple Clients
I wrote a server-client application in Python where the server sends a never-ending stream of messages to connecting clients.
I was in need for such an architecture since I want to retrieve and ...
2
votes
2answers
150 views
Simple subnet calculator and parser
I have started to learn Java for the past 20 days with no prior coding/comp science experience.
My brother gave me an idea to make a subnet calc/ping tool to enhance my knowledge and mentored through ...
4
votes
1answer
50 views
Send / receive wrapper for System.Net.Sockets - follow-up
I recently posted a question about improving thread and socket safety in my NetworkEndpoint class. previous post
I have implemented the changes suggested in the answer I got there. When I asked for a ...
6
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1answer
105 views
Send / receive wrapper for System.Net.Sockets
The following NetworkEndpoint class serves as a simple send / receive interface for either side of a network connection (client or server) when provided with a ...
3
votes
1answer
63 views
Small socket based packet Library
I'm currently writing a python script which needs some simple networking. After some playing around with sockets, this emerged, but as this is my first foray into sockets I'd really like a second ...
6
votes
1answer
127 views
Java objects for a network sniffer program
I'm working on a network sniffer program, whose structure uses 3 main classes:
Frame Class - One per monitored frame, holds reference to all the other sub frames
Parse Class - Holds the hex value of ...
5
votes
1answer
74 views
Enum for handling network request errors in Swift
I'm working on a new API written in Swift 5 and I wanted to play with the new Result. I wanted to know what you guys think about this syntax:
...
3
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1answer
79 views
API for multiple printer attributes [closed]
I have network printers which have different attributes (e.g. supported network protocols, languages, status, print modes).
...
2
votes
1answer
97 views
Script to get available IP automatically
Recently I made a script to get available IP automatically. I was woundering if anyone can give me tips on how to make this code look better, preferably in a class and OOP. I'm gonna show the code to ...
7
votes
1answer
353 views
Python scanner for the first free port in a range
I have a distributed application (YARN), which runs a WebApp.
This application use a default port to start (8008), before I start I need to check if port is in use.
A container may run in the same ...
1
vote
1answer
42 views
Page download with reattempts in Scala
I wrote the following code to deal with possible network problems.
...
2
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0answers
61 views
Web server using syscalls in Go
I'm new to Go and wanted to implement a web server using system calls to get a better feel for how everything works.
I'm looking for feedback on idiomatic go especially error handling and using ...
2
votes
1answer
98 views
C# Async/Await networking server
I made a simple async networking server and I'd like to get some input on the code, whether things can be done better and whether the code is stable (able to hold more than 1000 connections without ...
4
votes
0answers
282 views
dynwg: A DynDNS watchdog for WireGuard via systemd-networkd
Preface
I'm using WireGuard as a VPN solution to connect a remote client permanently to my home server.
Unfortunately due to Consumer DSL-related IP address changes, the client loses the connection ...
8
votes
1answer
821 views
TCP client and server API
I made a server and client API for TCP connection. It is intended to shorten the work you need to do to prepare the server and client.
It's separated into 3 projects - ...
7
votes
1answer
1k views
Non-blocking TCP and UDP in Unity3D Game Engine
I would like constructive criticism of a networking plugin I've written for Unity 3D. The use-case of the code is for people in "creative coding," where simple TCP and UDP messages are used for ...
4
votes
1answer
183 views
Looping through multiple regex efficiently
I'm writing a program that adds all network interfaces with multiple parameters to a list.
I have written the following code, which should work out of the box on any Linux system with Python and ...
1
vote
1answer
205 views
C++ game server
I'm writing a server for an MMO game using boost::asio. I would like to know, are there any design or other issues in my code? And what should I improve in it? Thanks in advance.
BaseServer.h:
...
5
votes
2answers
3k views
Add and enable/disable Windows Firewall rules with Python
I have this following module using for adding and enabling/disabling Windows Firewall rules using Python.
I currently use subprocess.call to execute the ...
2
votes
1answer
78 views
Java League of Legends ping checker
I'm still a freshman and this one of my first projects I made using Java and Swing.
The program is a simple League of Legends multi-threaded ping checker that pings the server 10 times to get an ...
2
votes
0answers
92 views
Batch file that checks for wifi connection - reconnects if no internet
There is a remote Windows PC that has access to "landline" unmetered WiFi and there is a Verizon 4G LTE MiFi (metered WiFi) as backup. This script checks to see if the PC is connected to any WiFi, ...
5
votes
2answers
221 views
CloudFlare Dynamic DNS Update Script in Python 3
I have a computer that roams, but needs to have an FQDN attached to it for certain reasons such as email system integrations or testing email via a testing SMTP server that requires valid FQDNs and ...
2
votes
1answer
182 views
PyCat: a netcat implementation in Python3.x v2
This is a follow up question from this question
Intro
netcat is an all-round tool used with many applicable features
My last try felt a bit rushed, and should've improved before posting here.
But ...
7
votes
2answers
166 views
PyCat A small implementation of netcat in Python3.x
Intro
netcat is an all-round tool used with many applicable features
I was playing around with sockets and openssl, and decided I should build my own.
It works as expected, but my code feels a bit ...
3
votes
2answers
84 views
Python 3 multi-threaded pinger
My goal: I want to ping every single IPv4 address and record whether or not they responded.
The way I have it set up is every IP address corresponds to an index. For example ...
7
votes
1answer
266 views
Traceroute implementation in Rust
I made this simple traceroute implementation using the libpnet library, which sends ICMP echo probes with an increasing time-to-...
1
vote
0answers
397 views
Wrap location API in coroutines
In my app I need to query location and scan wifi periodically. To conserve power I need to change the rate dynamically, depending on the distance to the target. Also I want to wait for both ...
2
votes
0answers
52 views
Task based GameObject recorder for networked game
I've recently been dipping my toes in to async code so I'm not 100% sure if there's a better way to do this, or if I'm going to run into problems down the road.
I plan on using the following class in ...
1
vote
0answers
47 views
Unity Multiplayer Authoritarian Client-Server
I have created a client-server system which handles multiplayer for a game I've been making with Unity. Problem is, it feels very clunky and complex and I want to know how the design could be ...
1
vote
1answer
1k views
IP Scanning program Python 3
This is the code I made to scan IP addresses. I am new to python and just want to learn how I can optimize it. I know the subprocess is slower than others to IP scanning but if there is a way to make ...
2
votes
2answers
152 views
Bash script to change network interface parameters/configuration and start virtual machines
On my Arch Linux system I have created a script that should do the following on system startup:
detect all network interfaces
check if physical interfaces are up
check if bridge interfaces are up
...
2
votes
4answers
2k views
Simple port scanner in Python 3
I wrote a simple python port scanner today and I would like to get some advice on how to improve on the code in different ways.
I am aware that I can implement threading to reduce runtime but I won't ...
1
vote
0answers
57 views
Peertable - an infrastructural peer-to-peer networking library
From the README:
Welcome to Peertable! This project is an infrastructural peer-to-peer
networking library for Python 3. You can also use it in standalone
mode, although that is for little use ...
3
votes
1answer
113 views
Java Messenger data transmission
This is a very simple concern, could somebody take a look at a few lines of my code? I'm writing a simple Java multi-user messenger, it is structured in a desktop client with a Swing GUI, a java ...
7
votes
2answers
667 views
Network Interface Object
I wrote a Network... thing (not really telnet); and it's pretty simple. No options, just straight I/O. It seems programs get so bloated easily.
...
3
votes
1answer
528 views
Measure website home page total network size in bytes
We have a requirement to check the size of some of our website home pages, in MB. This is to ensure that they are not growing too large, and that large images haven't been uploaded. I couldn't find ...
3
votes
1answer
224 views
Mutex helper for interprocess sychronization of accessing a network drive
I have two windows services working in parallel. Each of them is using a network drive that is connected and disconected dynamically by each one as required. They do it by executing ...
1
vote
0answers
90 views
Simple overlapped IO single threaded client
I wanted to make a single threaded network client that only uses a single connection to a server. IOCP seems like overkill but overlapped IO with event notification I think is the most performant of ...
14
votes
1answer
4k views
Event Based TCP Library
A while ago, I wanted to make a multiplayer game, so I wrote some TCPClient and TCPListener code, and it worked, but it was ...
7
votes
2answers
1k views
Trace route based on Cisco routing table text output
I created a script for path search across network topology based on uploaded routing tables in text format. The final purpose is to be able to get all available paths to given subnet/host from each ...
0
votes
2answers
317 views
Multiple AFNetworking calls In a view controller
Multiple AFNetworking calls In a view controller.
The code is very wield.
I think , to negotiate with the server , and combine those into one url, instead of many urls.
...
6
votes
1answer
877 views
Retry mechanism for failed downloads
I'm writing a mechanism to retry any failed downloads that respond with certain http error codes, I've noticed the server I'm downloading from will unexpectedly throw these codes to me and when I ...
7
votes
1answer
3k views
Event-based multi-client socket wrapper
For learning purposes I am trying to develop an event-based library/wrapper to communicate with many clients by using epoll.
The wrapper was designed with the ...
0
votes
1answer
68 views
First Time Programming Sockets
The following code was my first attempt at creating and manipulating socket variables. I compiled and ran the code through cmd.
What are the most common ways to organize methods in both a server and ...
