Questions tagged [networking]

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

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68 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 ...
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Which is better approach to attain performance? - Replaying one large pcap file or split into multiple files based on sessions

I have more than 1000 pcap files to test against False positive. However it is taking more than 2 hours to respond. Requested to improve the performance Can I merge all pcaps into a single pcap file ...
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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 ...
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1answer
43 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 ...
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1answer
83 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 ...
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0answers
32 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 ...
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0answers
87 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 ...
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1answer
47 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: ...
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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). ...
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1answer
88 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 ...
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1answer
231 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 ...
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1answer
39 views

Page download with reattempts in Scala

I wrote the following code to deal with possible network problems. ...
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0answers
54 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 ...
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1answer
72 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 ...
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176 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 ...
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1answer
737 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 - ...
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1answer
565 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 ...
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1answer
158 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 ...
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1answer
144 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: ...
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2answers
2k 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 ...
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1answer
70 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 ...
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66 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, ...
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2answers
160 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 ...
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1answer
113 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 ...
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2answers
134 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 ...
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2answers
53 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 ...
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1answer
185 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-...
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259 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 ...
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51 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 ...
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40 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 ...
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1answer
719 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 ...
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2answers
133 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 ...
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4answers
1k 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 ...
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48 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 ...
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1answer
111 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 ...
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2answers
665 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. ...
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1answer
386 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 ...
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1answer
158 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 ...
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76 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 ...
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1answer
3k 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 ...
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2answers
849 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 ...
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2answers
237 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. ...
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1answer
661 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 ...
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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 ...
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1answer
66 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 ...
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212 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 ...
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1answer
119 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 ...
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1answer
463 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 ...
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2answers
7k 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 ...
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1answer
101 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: ...