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Questions tagged [networking]

Networking is associated with creating and managing networks as well as adding network connectivity to a (set of) programs.

7
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1answer
187 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
27 views

Page download with reattempts in Scala

I wrote the following code to deal with possible network problems. ...
2
votes
0answers
44 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 ...
1
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0answers
53 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
73 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
591 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 - ...
5
votes
1answer
197 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
131 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
98 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
1k 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
60 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
47 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, ...
2
votes
1answer
75 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
99 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
45 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 ...
6
votes
1answer
108 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
105 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
49 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
34 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
368 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
123 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
561 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
36 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
108 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 ...
6
votes
2answers
659 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. ...
2
votes
1answer
261 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
109 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
66 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
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1answer
2k 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
653 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
174 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
443 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
2k 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
65 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 ...
1
vote
0answers
160 views

Fetch network interfaces configuration for hosts from list

Can you please review a little my simple Python code? I wrote this script to get list of hosts from text file and then iterate over these and get IP configured on active network interfaces - and ...
0
votes
1answer
102 views

Objective-C and AFNetworking

This is Objective-C and about Networking Request. Just set the AFNetWorking Manager and get method name from the method lists below (it is all Post request). The way we take now is quite weird. If ...
2
votes
1answer
323 views

TCP Packet design

I'm implementing a client/server app using JSON (as String) via TCP/IP. String --> Packet --> byte[] --> tcp/ip --> byte[] --> Packet --> String ...
3
votes
2answers
5k views

HTTP request parser in C

I'm implementing a simple HTTP server in C, and this is the first part of it. Basically, it takes a string containing a "raw" HTTP request, and parse it into a ...
5
votes
1answer
99 views

Python program that checks connections based on URLLIB response

The main function tries to create a urllib connection, and if it fails/succeeds the label changes accordingly. However, I'm looking for ways to improve this code. Some elements I'm already aware of: ...
5
votes
2answers
241 views

Python program that pings and outputs a response in Tkinter

I have a program that allows me to check (in a nicer way than using command prompt) what my ping will be when playing League Of Legends. I've implemented all of the elements that I had hoped, however ...
2
votes
1answer
74 views

Crap (from the Past) Scraper

I listen to a podcast called Crap from the Past. It's a radio show that airs weekly in Minneapolis and specializes in playing music from my childhood. The show has been on the air for ~26 years. I ...
1
vote
1answer
274 views

Class for TcpClient usage

I have created a class which wraps the TcpClient. It's greatly simplified everything when developing. It takes an interface for me to run callbacks where I can ...
3
votes
2answers
440 views

Networking library for c++, windows

I have planned to implement a networking library for C++ which is specific to windows since I can't find a library for my needs. Here is an implementation of TCP server using this library. First of ...
4
votes
0answers
448 views

Python port scanner using multithreading

I have written a rather simple port scanner using python and I would like to know things I could do better regarding: Code quality, making the code in general better Performance, making the code run ...
4
votes
1answer
63 views

Java - Downloading Wikipedia Articles

This is my first experiment that uses a network API and connects to the internet. I tried to write a program that gives you an article of wikipedia directly by typing the name. You can get an ...
3
votes
1answer
64 views

Restart network-manager service if connection down on wake shell script

I use Ubuntu (Trusty and Xenial) and usually put my computer in sleep mode rather than power it down. A common problem is that upon wake the network is down so one has to restart the network-manager ...
1
vote
1answer
2k views

Multi-client TCP server with a thread for each client and DB connection pool

I'm creating a Qt TCP (with SSL) server to which multiple clients should connect and use the DB, and this is the main task. So, I think I can use this architecture: each client has its own thread, and ...
1
vote
0answers
39 views

Queuing outgoing packets to fix server lag issues

I have been developing a game lately, my first multiplayer game. I am using Netty and LibGDX. So previously, before this update I added, I was only queuing incoming packets, I had to do this because ...
2
votes
1answer
130 views

Executing a command using Net::SSH

According to the local cop (rubocop), my method has too many lines. ...
3
votes
2answers
315 views

Arp-spoof check in PowerShell

To learn some PowerShell I made a tool, I've made before in bash. It pings the subnet for arp values and checks if there is no weird behaviour. ...