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Caddy's input is a JSON configuration document [10] which is received through an open socket via a RESTful HTTP API. [11] [6] In the absence of an HTTP client, Caddy's command-line interface can be used to load configuration files. [12] Config adapters may be used to convert other configuration formats to JSON.
Software: The Docker daemon, called dockerd, is a persistent process that manages Docker containers and handles container objects. The daemon listens for requests sent via the Docker Engine API. [23] [24] The Docker client program, called docker, provides a command-line interface (CLI) that allows users to interact with Docker daemons. [23] [25]
Container Linux provides no package manager as a way for distributing payload applications, requiring instead all applications to run inside their containers. Serving as a single control host, a Container Linux instance uses the underlying operating-system-level virtualization features of the Linux kernel to create and configure multiple containers that perform as isolated Linux systems.
HarmonyOS and OpenHarmony-based operating systems uses “config.json” configuration file in the root directory of each HAP application. It contains three modules such as app, deviceConfig and Module. The config.json file adheres to the JSON file format, where each entry comprises an attribute and its corresponding value. The sequence of ...
The term was coined by the programmers at MIT's Project MAC.According to Fernando J. Corbató, who worked on Project MAC around 1963, his team was the first to use the term daemon, inspired by Maxwell's demon, an imaginary agent in physics and thermodynamics that helped to sort molecules, stating, "We fancifully began to use the word daemon to describe background processes that worked ...
When you get a message from a "MAILER-DAEMON" or a "Mail Delivery Subsystem" with a subject similar to "Failed Delivery," this means that an email you sent was undeliverable and has been bounced back to you. These messages are sent automatically and often include the reason for the delivery failure.
Length-prefixed JSON is also well-suited for TCP applications, where a single "message" may be divided into arbitrary chunks, because the prefixed length tells the parser exactly how many bytes to expect before attempting to parse a JSON string. This example shows two length-prefixed JSON objects (with each length being the byte-length of the ...
Provides a network interface for the finger protocol, as used by the finger command. ftpd [1] Services FTP requests from a remote system. httpd: Web server daemon. inetd [4] Listens for network connection requests. If a request is accepted, it can launch a background daemon to handle the request, was known as the super server for this reason.