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# @achrinza/node-ipc > **NOTE:** This is a maintenance fork of `node-ipc` This is intended for > packages that directly or indirectly depend on `node-ipc` where maintainers > need a drop-in replacement. > > See https://github.com/achrinza/node-ipc/issues/1 for more details. [](code_of_conduct.md) [](https://coveralls.io/github/achrinza/node-ipc?branch=main) _a nodejs module for local and remote Inter Process Communication_ with full support for Linux, Mac and Windows. It also supports all forms of socket communication from low level unix and windows sockets to UDP and secure TLS and TCP sockets. A great solution for complex multiprocess **Neural Networking** in Node.JS **npm install @achrinza/node-ipc** #### Older versions of node the latest versions of `@achrinza/node-ipc` may work with the --harmony flag. Officially though, we support node v4 and newer with es5 and es6 #### Testing `npm test` will run the jasmine tests with istanbul for @achrinza/node-ipc and generate a coverage report in the spec folder. You may want to install jasmine and istanbul globally with `sudo npm install -g jasmine istanbul` --- #### Contents 1. [Types of IPC Sockets and Supporting OS](#types-of-ipc-sockets) 1. [IPC Config](#ipc-config) 1. [IPC Methods](#ipc-methods) 1. [log](#log) 2. [connectTo](#connectto) 3. [connectToNet](#connecttonet) 4. [disconnect](#disconnect) 5. [serve](#serve) 6. [serveNet](#servenet) 1. [IPC Stores and Default Variables](#ipc-stores-and-default-variables) 1. [IPC Events](#ipc-events) 1. [Multiple IPC instances](#multiple-ipc-instances) 1. [Basic Examples](#basic-examples) 1. [Server for Unix||Windows Sockets & TCP Sockets](#server-for-unix-sockets-windows-sockets--tcp-sockets) 2. [Client for Unix||Windows Sockets & TCP Sockets](#client-for-unix-sockets--tcp-sockets) 3. [Server & Client for UDP Sockets](#server--client-for-udp-sockets) 4. [Raw Buffers, Real Time and / or Binary Sockets](#raw-buffer-or-binary-sockets) 1. [Working with TLS/SSL Socket Servers & Clients](https://github.com/RIAEvangelist/@achrinza/node-ipc/tree/master/example/TLSSocket) 1. [Node Code Examples](https://github.com/RIAEvangelist/@achrinza/node-ipc/tree/master/example) --- #### Types of IPC Sockets | Type | Stability | Definition | | ----------------------------- | --------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Unix Socket or Windows Socket | Stable | Gives Linux, Mac, and Windows lightning fast communication and avoids the network card to reduce overhead and latency. [Local Unix and Windows Socket examples ](https://github.com/RIAEvangelist/@achrinza/node-ipc/tree/master/example/unixWindowsSocket/ "Unix and Windows Socket Node IPC examples") | | TCP Socket | Stable | Gives the most reliable communication across the network. Can be used for local IPC as well, but is slower than #1's Unix Socket Implementation because TCP sockets go through the network card while Unix Sockets and Windows Sockets do not. [Local or remote network TCP Socket examples ](https://github.com/RIAEvangelist/@achrinza/node-ipc/tree/master/example/TCPSocket/ "TCP Socket Node IPC examples") | | TLS Socket | Stable | Configurable and secure network socket over SSL. Equivalent to https. [TLS/SSL documentation](https://github.com/RIAEvangelist/@achrinza/node-ipc/tree/master/example/TLSSocket) | | UDP Sockets | Stable | Gives the **fastest network communication**. UDP is less reliable but much faster than TCP. It is best used for streaming non critical data like sound, video, or multiplayer game data as it can drop packets depending on network connectivity and other factors. UDP can be used for local IPC as well, but is slower than #1's Unix Socket or Windows Socket Implementation because UDP sockets go through the network card while Unix and Windows Sockets do not. [Local or remote network UDP Socket examples ](https://github.com/RIAEvangelist/@achrinza/node-ipc/tree/master/example/UDPSocket/ "UDP Socket Node IPC examples") | | OS | Supported Sockets | | ----- | -------------------------- | | Linux | Unix, Posix, TCP, TLS, UDP | | Mac | Unix, Posix, TCP, TLS, UDP | | Win | Windows, TCP, TLS, UDP | --- #### IPC Config `ipc.config` Set these variables in the `ipc.config` scope to overwrite or set default values. ```javascript { appspace : 'app.', socketRoot : '/tmp/', id : os.hostname(), networkHost : 'localhost', //should resolve to 127.0.0.1 or ::1 see the table below related to this networkPort : 8000, readableAll : false, writableAll : false, encoding : 'utf8', rawBuffer : false, delimiter : '\f', sync : false, silent : false, logInColor : true, logDepth : 5, logger : console.log, maxConnections : 100, retry : 500, maxRetries : false, stopRetrying : false, unlink : true, interfaces : { localAddress: false, localPort : false, family : false, hints : false, lookup : false } } ``` | variable | documentation