System Architecture

A journey to portable software

Commissioned: Thanks to recent technological advancements, there are many different sources of electricity available which can help organizations address

Last week, I sent you an article about the cardinality conundrum in observability. That brought up a few questions. The one I didn't expect was, "What is observability, really?" So let's find out...

Often, software architecture is inadequate for the problem it solves. More often than not, this leads to serious problems during the life of the application.

WebAssembly (Wasm) could shake up the world of HTTP API integration. Here we explore the hidden powers of Wasm.

MERN Mentor: Your Comprehensive Resource for Mastering the MERN Stack! Dive into Detailed Tutorials and Practical Tips for MERN Development Success!

The International Standard for Organization (ISO) has a published an international standard for querying graphs, called the Graph Query Language (ISO/IEC 39075:2024).

Idempotency can resolve accidental orders and inconsistent APIs by using a unique key to indicate that an order already went through.

Kazuhiko "Kay"[1] Nishi (西 和彦, Nishi Kazuhiko, born February 10, 1956 in Kobe, Japan) is a Japanese businessman and personal computer pioneer.

Paolo Soleri was an Italian-born American architect and urban planner. He established the educational Cosanti Foundation and Arcosanti. Soleri was a lecturer in the College of Architecture at Arizona State University and a National Design Award recipient in 2006. He coined the concept of 'arcology' – a synthesis of architecture and ecology as the philosophy of democratic society. He died at home of natural causes on 9 April 2013 at the age of 93.

JOT was the front end of HyperTyper, an early word processor intended for the 1972 market; unfortunately the backer backed out, ending the project.The original...

JOT is a text interface, intended for untrained users, designed circa 1971, long before word processing reached the public.  Because our project lost its...

Tclers wiki

TRAC (for Text Reckoning And Compiling) Language is a programming language developed between 1959–1964 by Calvin Mooers and first implemented on the PDP-1 in 1964 by L. Peter Deutsch.[2] It was one of three "first languages" recommended by Ted Nelson in Computer Lib. TRAC T64 was used until at least 1984, when Mooers updated it to TRAC T84.[2]

a bliki entry for Ball And Socket

A Nassi–Shneiderman diagram (NSD) in computer programming is a graphical design representation for structured programming. This type of diagram was developed in 1972 by Isaac Nassi and Ben Shneiderman who were both graduate students at Stony Brook University. These diagrams are also called structograms, as they show a program's structures.

A visual deep dive into how Uber uses graph theory, embeddings and self-attention and to predict ETAs

In this issue, we will discuss how to solve one of the most common software bottlenecks in production: database scalability. There are two types of scaling strategies: vertical and horizontal. Also, we will see how Figma scaled their Postgre database to almost infinite scalability

For the last few months, Benjamin Tissoires and I have been working on and polishing a little tool called udev-hid-bpf [1]. This is the ...

In computer networking, the multicast DNS (mDNS) protocol resolves hostnames to IP addresses within small networks that do not include a local name server. It is a zero-configuration service, using essentially the same programming interfaces, packet formats and operating semantics as unicast Domain Name System (DNS). It was designed to work as either a stand-alone protocol or compatible with standard DNS servers.[1] It uses IP multicast User Datagram Protocol (UDP) packets and is implemented by the Apple Bonjour and open-source Avahi software packages, included in most Linux distributions. Although the Windows 10 implementation was limited to discovering networked printers, subsequent releases resolved hostnames as well.[2] mDNS can work in conjunction with DNS Service Discovery (DNS-SD), a companion zero-configuration networking technique specified separately in .mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a{background-size:contain}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a{background-size:contain}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a{background-size:contain}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:#d33}.mw-parser-output .cs1-visible-error{color:#d33}.mw-parser-output .cs1-maint{display:none;color:#2C882D;margin-left:0.3em}.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911F}html.skin-theme-clientpref-night .mw-parser-output .cs1-visible-error,html.skin-theme-clientpref-night .mw-parser-output .cs1-hidden-error{color:#f8a397}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-visible-error,html.skin-theme-clientpref-os .mw-parser-output .cs1-hidden-error{color:#f8a397}html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911F}}RFC 6763.[3]

The Link-Local Multicast Name Resolution (LLMNR) is a protocol based on the Domain Name System (DNS) packet format that allows both IPv4 and IPv6 hosts to perform name resolution for hosts on the same local link. It is included in Windows Vista, Windows Server 2008, Windows 7, Windows 8, Windows 10.[1] It is also implemented by systemd-resolved on Linux.[2] LLMNR is defined in RFC 4795 but was not adopted as an IETF standard.[3]

This document describes a method by which DNS resolvers may reach multicast-capable DNS servers which may exist within a multicast local scope, by issuing a single UDP query to a static multicast address.

Onion routing is a technique for anonymous communication over a computer network. In an onion network, messages are encapsulated in layers of encryption, analogous to the layers of an onion. The encrypted data is transmitted through a series of network nodes called "onion routers," each of which "peels" away a single layer, revealing the data's next destination. When the final layer is decrypted, the message arrives at its destination. The sender remains anonymous because each intermediary knows only the location of the immediately preceding and following nodes. While onion routing provides a high level of security and anonymity, there are methods to break the anonymity of this technique, such as timing analysis.