Algorithms, Blockchain and Cloud

An unpatched WordPress and plugin vulnerability apparently exposed a Cloudflare credential stored in the database. The attacker then deployed a malicious Worker, hijacked selected blog pages, redirected traffic to gambling websites, and added an unauthorised verified owner to Google Search Console. This post reconstructs the incident, examines what the evidence does and does no...

The controlled variable method is one of the most important principles in scientific experiments and engineering practice. When investigating how one factor affects an outcome, we change that factor while keeping other relevant conditions as consistent as possible. Using examples from sugar dissolution, plant growth, and software performance testing, this article explains indep...

[caption id="attachment_158064" align="alignnone" width="2048"] Leetcoding/Problem Solving on a Date[/caption] AI is rapidly reducing the cost of writing code. Work that once took p...

Linux servers can run out of disk space because of growing logs, backups, caches, or Docker data, potentially causing databases, websites, and other services to fail. This article explains how to diagnose disk-space and inode issues using traditional commands such as df, du, find, and lsof, while introducing ncdu as a faster and more intuitive way to identify the largest files ...

MySQL needs permission to read and write ordinary database files, but most application databases do not need SQL statements to exchange arbitrary files with the operating system. If a server exists primaril...