GitHub - leandromoreira/linux-network-performance-parameters: Learn where some of the network sysctl variables fit into the Linux/Kernel network flow. Translations: 🇷🇺

Oh boy, it’s been a while since I promised this type of post. This will cover from the end of last year to date. Playdither is a web tool for applying black and white dither to images, mostly designed for people working with the Playdate but it’s an interesting tool for anyone to play with (hence my new avatar on the front page). About Ideas Now, is an aggregation site for people’s ‘About’, ‘Ideas’, and ‘Now’ pages in a searchable format.

Prior to working in the trading industry, my assumption was that High Frequency Trading (HFT) is

General Purpose tools Section covering useful tools for every day activities, Online learning etc. Plane - Open source alternative to JIRA ShareX - Screen capture, file sharing and productivity tools (Windows only) Dark Lang - Declarative platform to build serverless backend OBS Studio - Free and open source software for video recording and live streaming. Open source Wiki platform Open source 3D parametric modeler Backstage - an open platform for building developer portals Zoomit - screen zoom and annotation tool for technical presentations that include application demonstrations revealjs - HTML Presentation framework List of Self hosted software Open source Alternative to Heroku/Netlify for Self hosting A book of Secret knowledge - Collection of Useful tools Parsr - Transform PDF,Image into Structured data SOPS - Tool to secure secrets (JSON,YAML, INI etc.) via Command line and as GO library Windows Powertools for greater productivity Ex-googler’s list similar tools/techniques Recoll - Desktop full search tool Take potentially dangerous PDFs, office documents, or images and convert them to safe PDFs Briar - Secure peer to peer messaging on Android Open source alternative to Jira, slack,notion Useful Command line tools iperf -A TCP, UDP, and SCTP network bandwidth measurement tool Mise - version manager for multiple languages Guide to Linux Bash script Devbox - Quick shell with runtime environment without polluting laptop/desktop Shellcheck- a static analysis tool for shell scripts Useful online playgrounds by Julia Evans New list of useful Command line tools dsq- run sql queries against CSV,JSON,TSV, Web server logs exa - colorful alternative to ls duf - better disk usage/free utility Zmap - collection of open source tools for performing large-scale studies of the hosts and services that compose the public Internet. ripgrep - Recursively search directories for regex ripgrep-all - rigrep + PDFs, E-books, Office documents gron - Make JSON greppable xsv - fast comman

Another quick post based on a Twitter exchange. (Maybe this will help save content from the ephemera of Tweets.) A short, incomplete list topics in networking that programmers should know about: ICMP messages Frame size and fragmentation Socket options Listen queue and behavior when full. All the timeouts and why they exist. When read, write, and connect calls block and why. When memory buffers are copied and how to avoid. A reference I love is the encyclopedic The TCP/IP Guide (note: affiliate link.