Page 41 - Maxim Mironjuk

PATH hijacking exploits the fact that Bash scripts resolve commands through an inherited, potentially manipulated PATH variable instead of using fixed, trusted paths. This article shows how a manipulated PATH or IFS tricks a script into running someone else's programs, why cron jobs and systemd units are especially affected, and which concrete measures harden Bash scripts against this attack pattern.

Large Magento catalogs with thousands of products and faceted navigation often generate millions of crawlable URL variants, most of which carry no standalone SEO value. Without deliberate control over Googlebot, crawl budget gets wasted on filter combinations, sort parameters, and session IDs, while important new or updated product pages get discovered less often and later.

Anyone who treats Value Objects as nothing more than fancier data classes gives up their real benefit: a Value Object encapsulates equality, validity, and immutability in exactly one place in the code, instead of scattering those rules across services, controllers, and forms. This article shows, in plain, framework-independent PHP 8.4, how to use equals() instead of naive comparison, how to enforce invariants inside the constructor, and how readonly properties deliver true immutability, all without losing the balance between objects that are too small and objects that are too large.

Image scanning finds known vulnerabilities before startup, but once a container is running, much stays invisible. Falco watches system calls directly in the kernel and detects in real time when a process inside a container behaves differently than expected, for example an unexpected shell, a write to sensitive paths, or an escape attempt.

An InnoDB page is larger than the atomic write block of most storage systems, meaning a power failure in the middle of a write can leave a page half old and half new. The doublewrite buffer is the mechanism that reliably prevents exactly this scenario, the torn page. This article explains how it works, what it costs in performance, and when disabling it is actually worthwhile.

When a PHP application hits a hard computational ceiling, the classic path used to run through a custom C extension with its own build process. FFI lets you call existing native libraries directly from PHP code, with no compiler toolchain in the deployment, making performance-critical code practical for far more projects than before.

Vue 3 reactivity is not magic, it is a precise system built from JavaScript Proxy, dependency tracking and scheduling. Anyone who understands how ref(), reactive(), computed() and watch() work internally stops making reactivity mistakes, picks the right tool for every use case, and knows immediately why a component is not re-rendering. This article explains the reactivity system fully and with practical examples.

Teams that only cover a GraphQL API with end-to-end tests end up with a slow, brittle test suite. Teams that only write unit tests miss errors in schema composition. A well-designed GraphQL testing pyramid deliberately spreads test effort across the resolver level, the schema level, and real user flows, with clear criteria for which layer catches which class of error.

A custom query builder replaces fragile string concatenation with an object that assembles SQL expressions step by step, in a type safe and testable way. Understanding how a query builder works internally makes it easier to use finished solutions like Doctrine or Laravel Eloquent more deliberately, and to know when a custom build actually makes sense.

Integrating external data sources into React was a minefield of race conditions and inconsistent renders before React 18. useSyncExternalStore is the official solution: a hook that correctly connects external stores to the React rendering cycle and prevents tearing even in Concurrent Mode.