76 articles found
Learn how to create a bulletproof Linux disaster recovery plan. From backup verification to automated failover — protect your servers from catastrophic data loss....
We published two editions of our Bash Book — the original classic (452 pages) and the fully revised 2nd Edition (352 pages) for 2026. This in-depth comparison breaks down what changed, what is new, and which edition suits your skill level and goals....
Perl may not be trending on social media, but it quietly powers critical infrastructure at thousands of companies. This honest assessment examines where Perl excels in 2026, why it refuses to die, and whether it deserves a place in your skill set — with practical examples and career advice....
PowerShell is no longer just a Windows tool — it runs on Linux, macOS, and in the cloud. This comprehensive guide covers modern PowerShell 7 scripting, Azure automation, cross-platform workflows, and why PowerShell skills are essential for every IT professional in 2026....
Zsh has replaced Bash as the default shell on macOS and is rapidly gaining ground on Linux. This guide covers why developers prefer Zsh, how to set it up with Oh My Zsh, the best plugins and themes, and advanced features that will supercharge your terminal workflow....
Bash remains the most powerful tool in every Linux administrator's arsenal. This comprehensive guide covers everything from variables and loops to advanced techniques like process substitution, signal trapping, and production-grade error handling — with real-world examples you can use immediately....
Learn how to implement a complete Zero Trust security model on Linux servers. This comprehensive guide covers identity verification, micro-segmentation, least-privilege access, and continuous monitoring — everything you need to protect your infrastructure in 2026....
Complete guide to database backup strategies: pg_dump, pg_basebackup, WAL archiving, point-in-time recovery, mysqldump, mongodump, automated backup scripts, and disaster recovery planning for production databases....
Master PostgreSQL performance tuning — from postgresql.conf memory settings to EXPLAIN ANALYZE, indexing strategies, VACUUM management, and monitoring. Real production configurations and optimization patterns included....