Search Results for "tcp" - Page 5
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Showing 272 open source projects for "tcp"
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EasyModbusTCP/UDP/RTU .NET
Modbus TCP, UDP and Modbus RTU client/server library
Modbus TCP, Modbus UDP and Modbus RTU client/server library for .NET Supports Function Codes: - Read Coils (FC1) - Read Discrete Inputs (FC2) - Read Holding Registers (FC3) - Read Input Registers (FC4) - Write Single Coil (FC5) - Write Single Register (FC6) - Write Multiple Coils (FC15) - Write Multiple Registers (FC16) V5.6: Upload lates version - This will probably the last version for .NET Framework 4.0 - The next Version will be based on new .NET5 and redesigned V5.5: Bugfixes and MQTT Bridge removed V5.0: Major Bugfixes and Event Handlers changed V4.4 HF1: Bugfix excessive CPU-Load Modbus TCP Server V4.4: Bugfix Modbus RTU and MQTT V4.3: Bugfixes Modbus RTU Webview for Modbus Server Simulator and MQTT functionality for Server -
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dog
A command-line DNS client
...It lets users query DNS records from the terminal while using modern command-line argument conventions and readable output formatting. The tool supports common record types and can perform lookups over UDP, TCP, DNS-over-TLS, and DNS-over-HTTPS. It can also emit JSON, which makes it useful for scripts, automation, and structured debugging workflows. dog runs across Windows, macOS, and Linux, giving developers and administrators a consistent DNS inspection tool across platforms. Its main value is combining practical DNS troubleshooting with clearer output and modern transport support. -
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Netty demos
Demos of Netty 4.x User Guide
Netty Demos is a Java example collection that accompanies the Chinese Netty 4.x User Guide and a related practical book. It lets readers compare standard blocking I/O, NIO, AIO, and Netty implementations of similar network programs. The repository includes echo, discard, time, TCP, UDP, HTTP, HTTP/2, and WebSocket examples. Additional samples explain ByteBuffer, ByteBuf usage modes, thread pools, the Reactor pattern, heartbeat handling, and custom codecs. Serialization demonstrations cover Java objects and JSON through Jackson. Security examples include SSL/TLS mutual authentication, while monitoring modules show a lightweight service and interface. ... -
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ModbusPal - a Java MODBUS simulator
Modbus slave simulator
ModbusPal is a project to develop a PC-based Modbus simulator. Its goal is to reproduce a realistic environment, with many slaves and animated register values. Almost everything in ModbusPal can be customized and controlled by scripts. -
Go from Code to Production URL in SecondsSkip the Kubernetes configs. Cloud Run handles HTTPS, scaling, and infrastructure automatically. Two million requests free per month.
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OpenResty SystemTap Toolkit
Real-time analysis and diagnostics tools for OpenResty
...It provides developers and system administrators with tools to trace performance bottlenecks, memory usage, request distribution, regex execution, Lua execution, and file I/O behaviors in production systems. The toolkit helps identify leaks, analyze TCP queues, inspect shared memory usage, and generate flame graphs for CPU and off-CPU profiling. Many scripts are specific to NGINX worker and master processes, while others are generic enough to be applied to any Linux user-space process. Although the toolkit is no longer actively maintained—development has shifted to OpenResty XRay—it remains a valuable set of examples and utilities for advanced users of OpenResty and NGINX. -
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Hiper
A statistical analysis tool for performance testing
...By averaging data across multiple page loads, Hiper helps developers understand whether performance optimizations actually improve real-world page loading behavior. The tool relies on browser performance timing data to capture metrics such as DNS lookup time, TCP connection time, time to first byte, download duration, DOM readiness, and total page load time. Hiper runs from the command line and can be installed globally using Node.js package managers, making it simple to integrate into development or testing workflows. -
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Shrine
A TempleOS distro for heretics
Shrine is a modified distribution of TempleOS, aiming to retain compatibility with TempleOS programs while introducing enhancements for usability and connectivity. It incorporates features like a Unix-like shell, internet access, and a package downloader, expanding the capabilities of the original system. Shrine serves as a platform for exploring the unique aspects of TempleOS with added modern conveniences. -
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Hyenae NG
Advanced Network Packet Generator
Hyenae NG is an advanced cross-platform network packet generator and the successor of Hyenae. It features full network layer spoofing, pattern based address randomization and flood detection breaking mechanisms. *** Please check out the latest source from my GitHub repository and check the Build informations. https://github.com/r-richter/hyenae-ng/ -
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KonsolScript: Automate and Orchestrate
Embeddable scripting runtime for live behavior, AI, and automation.
...Key capabilities: - Embed into any C++ app with a single header - Hot-reload scripts at runtime without restarting - AI-safe: validate or reject scripts before execution - Orchestrate LLMs (OpenAI, Claude, Gemini, Ollama) in .ks scripts - Built-in: String, File, JSON, CSV, Math, Regex, and more - Plugins: HTTP, SQLite, MySQL, TCP, Redis, Crypto, JWT, Zip - Push behavior updates to remote instances over TCP Use cases: - Scriptable game engines (hot-patch rules mid-session) - AI event bridges (natural language to live app behavior) - Automation pipelines (CI, log triage, file processing) - LLM orchestration workflows Docs: https://konsolscript.sf.net/kookbook.html -
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Integrated packet generator and sniffer for Ethernet, but also works with blocks of data over TCP connection. Enables you to use scripts for automated testing, monitoring, imitating of various network objects, creating custom network tools.
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GoJay
high performance JSON encoder/decoder with stream API for Golang
...I looked at other fast decoders/encoders and realized it was mostly hardly readable static code generation or a lot of reflection had poor streaming features and were not so fast in the end. Also, I wanted to build a decoder that could consume an io.Reader of line or comma delimited JSON, in a JIT way. To consume a flow of JSON objects from a TCP connection for example or from a standard output. The same way I wanted to build an encoder that could encode a flow of data to a io.Writer. -
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handy
A simple C++11 network server framework
...Asynchronous connection management supports openssl connection, if OpenSSL is installed, and <openssl/ssl.h> can be found, the project will automatically download handy-ssl because the open-source protocol of OpenSSL is not compatible with this, so the project file is placed separately in handy-SSL. The message encode/decode example using protobuf is under protobuf. Support udp, the client of udp is used in connect mode, similar to tcp. -
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gpsfeed+
A software gps simulator
A software gps simulator, providing TCP/IP, UDP, http and serial port connectivity in NMEA 0183, XML or user defined output format. Usable for testing all kinds of GPS applications. Can playback pre-recorded GPS files with NMEA output. -
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asapp
Asynchronous application framework built upon boost Asio
Asapp is a framework for developing applications using the boost asio library. It has everything you need to quickly get an asio based application up and running so that you can focus on the application logic and not the asio plumbing. Asapp provides a number of classes to extend the feature set of asio. It strives to fit alongside the asio library and it tries not to limit access to any features. -
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libnexstar
C API to control NexStar compatible telescopes
...Communication to the hand control is 9600 bits/sec, no parity and one stop bit via the RS-232 port on the base of the hand control. Communication can be established over TCP/IP if nexbridge is running on the computer connected to the telescope. To control network based telescopes nexbridge must be used on the remote site. https://sourceforge.net/projects/nexbridge/ -
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newLISP for BSDs, LINUX, MacOS X, SunOS and Win32: small, fast 350+ functions, a -C-, MySQL, PostgreSQL, SQLite, ODBC, TCP/IP, UDP, XML, Java interface, string processing, regular expressions , math, financial, statistical functions, Win32 DLL
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goim
goim is a im server writen by golang
...Supports single push, multiple push and broadcasting. Supports one key to multiple subscribers (Configurable maximum subscribers count). Supports heartbeats (Application heartbeats, TCP, KeepAlive, HTTP long pulling). Supports authentication (Unauthenticated user can’t subscribe). Scalable architecture (Unlimited dynamic job and logic modules). You can view the comments in target/comet.toml,logic.toml,job.toml to understand the meaning of the config. Install comet/logic/job modules and use Supervisor management (You might need to change the configuration files based on your servers). -
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Hprose
Hprose is a cross-language RPC. This project is Hprose 3.0 for PHP
Hprose (High Performance Remote Object Service Engine) is a lightweight and high-speed RPC (Remote Procedure Call) framework for PHP. It allows applications to call methods on remote servers as if they were local, using a cross-language protocol. Hprose supports multiple transport layers and is designed to be easy to use, efficient, and extensible across different platforms and languages. -
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toxy
Hackable HTTP proxy for resiliency testing
Toxy is a programmable HTTP proxy created for resiliency testing and simulation of unreliable network conditions. It operates at the HTTP application layer, giving developers more control over requests and responses than basic TCP throttling tools. Its core model uses poisons to alter traffic and rules to decide when those alterations should apply. Tests can inject latency, limit bandwidth, return errors, manipulate payloads, or combine several adverse conditions. Rules can filter traffic by route, headers, query values, methods, bodies, and other request properties. ... -
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libinitmon
Library to make startup process easy
Libinitmon is a library targeted for those who wants to create its own init/bootup daemon. It supports: - dependencies tracking - pid watchdog - wait for TCP, UDP, Unix sockets -
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TCPCopy
An online request replication tool, also a tcp stream replay tool
TCPCopy is a TCP stream replay tool to support real testing of Internet server applications. Although the real live flow is important for the test of Internet server applications, it is hard to simulate it as online environments are too complex. To support more realistic testing of Internet server applications, we develop a live flow reproduction tool - TCPCopy, which could generate the test workload that is similar to the production workload. -
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Simple Client Server Chat Example
An example of a simple chat system
...The multi-threading part aims to show how to avoid blocking methods by putting them in separate thread, therefor, the ExecutorService was not used. Two Runnable interfaces are available in the server and the client to show how the dialog is managed. The Socket part aims to show how simple communication using TCP/IP are quite simple. The system shows how to exchange and process String over network. This is not sufficient when talking about large applications, but, let's not forget that HTTP uses Strings. The project contains both the Server and the Client. The main method in the Main class does nothing. You must launch the Server (ServerMain) and several instances (or just one) of the Client (ClientMain). ... -
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JennyNet
Java Network Layer for Server/Client Communication
Java Network Layer resting on TCP/IP is now developed by Wolfgang Keller, SF user "kse". This site is outdated and contains an old version of the software. I have given up developing this project and left all copyright to Wolfgang Keller. -
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Throttling port forwarder
A port forwarder that allows limiting the data rate
This interactive program forwards all incoming connections to a given host and port. The data rate per connection can be limited or inhibited completely. Individual connections or all connections can be terminated. This is useful for testing the behavior of software under slow network conditions. The program uses the Qt library and has been tested on Windows and Linux. It should run on all platforms supported by Qt. -
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TCP throughput, memory usage, memory leaks; The most advanced feature is the monitoring of TCP/IP traffic figures, for each SINGLE process (actual connections and throughput). As far as known no other tool has this capability. In the process tree, use the right mouse button to monitor process details.