Practical technology knowledge
Tutorials, guides, comparisons and analysis on security, Linux, networking, development, cloud and the tooling that powers modern technology — written by practitioners, for practitioners.
Free tools
Most run entirely in your browser, so nothing you paste — a token, a password, production data — is ever sent to us.
The Options API is not deprecated, script setup is the real default, Vuex is finished and Vue 2 has had no patches since the end of 2023. A catch-up on what moved, and the reactivity trap that still catches everyone.
PHP wipes memory after every request; Node keeps one heap alive for all of them. That single difference explains the leaks, the crashes and the bootstrap cost — and worker-mode PHP has now moved the line.
The model file is the wrong number to budget for. At OpenClaw's default 64K context an 8B model's KV cache is 8 GiB — nearly double its quantised weights. The arithmetic, the documented floors, and the failure modes that appear after the model loads.
One question settles most Git accidents: has it been pushed? Organised by what went wrong, with the three-trees model that makes reset's three flags obvious and a table of what each command touches.
Every VLOOKUP, HLOOKUP and INDEX/MATCH pattern converted to XLOOKUP — plus the version requirement that decides whether you can switch, and why lookup-heavy workbooks get slow.
Most GPU buying advice for AI ranks cards by speed. That is the wrong axis: VRAM decides which models you can train at all, and a card that cannot hold your model is infinitely slow. Here is the arithmetic, tier by tier.
“Processed in your browser” is a claim about the tool's own code, not about the other scripts on the page. Four checks in order of what they prove — starting with the ten-second offline test that settles it.
Two correctly permissioned tools compose into a data breach, and no per-call check ever sees the pair. Why published attack success rates range from 0.5% to 68%, and the four controls a compromised agent cannot argue its way past.
NGINX Server Nginx, a popular open-source web server, excels at handling high traffic websites efficiently. One of its powerful features is the ability to host multiple websites on a single server using server blocks. This allows you to manage different domains or applications on the same machine, m
In the realm of web hosting, choosing the right web server is paramount. It acts as the gatekeeper, efficiently delivering content to website visitors and impacting factors like speed, security, and scalability. This article dives deep into the strengths and weaknesses of popular web server options:
