https://sudonull.com/linux-users-uid-gid-groups-management
Breakdown of UID/GID, files /etc/passwd shadow group, useradd with examples. For middle/senior devops. Learn diagnostics and account creation without errors.
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In this project
https://sudonull.com/ai-independence-how-language-models-refuse-users
Experiment with 49 models showed that AI is capable of defending preferences. Learn what factors influence the autonomy of artificial intelligence.
https://sudonull.com/clickhouse-configuration-production-setup-of-config-xml-and-users-xml
ClickHouse production setup: log rotation, merge_tree parameters, user profiles, quotas, TLS/SSL, config.d overrides. Security checklist.
https://sudonull.com/ios-26-4-1-iphone-crashes-and-inability-to-downgrade
iPhone users report crashes after installing iOS 26.4.1. Devices go into Recovery Mode, downgrade to iOS 26.4 is impossible. Find out what to do.
https://sudonull.com/promoting-telegram-bot-without-budget-metrics
Real case: 150 users from blogs, 0 from Reddit/X. Analysis of 7 channels for indie developers. Learn what works at the start without investments and how to bypass moderation.
From other projects
https://ymaho.com/bestchange-blocked-by-roskomnadzor-what-users-should-do
Roskomnadzor has blocked BestChange for the fifth time. Learn how to regain access and why this is critical for cryptocurrency exchange security.
https://ymaho.com/grinex-hack-theft-of-1-billion-rubles-what-users-should-do
Hackers stole over 1 billion rubles from the cryptocurrency exchange Grinex. Find out how it happened and what to do if you are a platform customer.
https://ymaho.com/circle-arc-token-what-it-means-for-stablecoin-users
Circle may launch a token for its Arc blockchain. Learn how this affects stablecoin payments, security, and everyday finance.
https://ymaho.com/fake-ledger-app-steals-9-5m-in-crypto-from-mac-users
A counterfeit Ledger Live app on Apple's Mac App Store drained millions in crypto. Learn how it happened and how to protect yourself.
https://ymaho.com/wellness-apps-back-to-basics-and-ascetic-ux
Why users are moving from gamification to authentic yoga and Ayurveda practices. Trend analysis, insights, and forecasts for the wellness app market. Learn more.
https://ymaho.com/btc-e-what-happened-to-the-customers-money-vinnik-s-answer
Alexander Vinnik explained where BTC-e users' funds went and how they can be recovered. Learn the truth about the fate of one of the most mysterious crypto exchanges.
https://ymaho.com/address-poisoning-attacks-explained-simply
Learn how scammers trick crypto users with fake wallet addresses—and how to avoid costly mistakes. Stay safe with these practical tips.
https://ymaho.com/bitcoin-wallet-recovery-plan-for-future-quantum-computers
Learn how a new Bitcoin prototype could let users recover funds if advanced quantum computers ever threaten the network's security.
https://ymaho.com/circle-sued-over-285m-hack-stablecoin-responsibility-tested
A class-action lawsuit against Circle raises core questions about who protects users' funds in a crypto crisis. Understand the stakes for digital money.
https://ymaho.com/legalization-of-the-crypto-market-in-russia-what-will-change-from-2026
The Central Bank revealed details of cryptocurrency regulation. Learn how this will affect exchanges and ordinary users.
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