Fast Subnet Matching
Determining if a subnet contains a given IP is a fundamental operation in networking. Router dataplanes spend all of their time looking up prefix matches to make forwarding decisions, but even higher layers of application code need to perform this operation.
These hidden features and shortcuts will help you perform some of the most common Bash functions more efficiently.
SCP - Familiar, Simple, Insecure, and Slow
SCP? It’s that handy file-transfer feature of SSH, right? Well, not quite. It’s more of a hack. Or an undocumented, unstandardized mashup of two protocols. Let’s look at the exciting (and scary) details
Eight tips to relieve those Postgres headaches
A practical, non-exhaustive guide to some of the common issues you’ll encounter while using Postgres. We’ll go beyond the basic advice of adding indices to your queries using sequential scans. There are also a few extra tips for those using the AWS RDS service
Learning to love systemd
systemd is the mother of all processes, responsible for bringing the Linux host up to a state where productive work can be done.
Code to read
docker in go. Learning about containers and how they work by creating them the hard way
A low-level Node.js binding for the Linux epoll API
Cross-platform Ruby library for managing child processes
💎 Robust job processing in Elixir, backed by modern PostgreSQL
🐶 Automated code review tool integrated with any code analysis tools regardless of programming language
A Realtime API Gateway used with NATS to build REST, real time, and RPC APIs, where all your clients are synchronized seamlessly
Free Introspected tunnels to localhost, like ngrok but free and unlimited
World’s fastest and most advanced password recovery utility
One Github action to run linter for any repository. It detects
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