Database Backup and Restore Testing: Proving Your Backups Actually Work
Build a routine for testing database backups on Linux servers: restore drills, integrity checks, recovery time goals and common ways backups silently fail.
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Run reliable Linux servers.
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Latest guides
Browse categories Too Many Connections: Database Connection Limits and Pooling Explained
Why 'too many connections' errors happen on PostgreSQL and MySQL, how connection pooling fixes them, and how to size pools without starving your database.
PostgreSQL or MySQL: How to Choose a Database for Your Linux Server
A practical comparison of PostgreSQL and MySQL for self-managed Linux servers, covering features, operations, tooling and how to decide.
Finding and Fixing Slow Database Queries on a Production Server
A methodical approach to finding slow queries in PostgreSQL and MySQL: slow query logs, EXPLAIN, indexes, and the mistakes that make things worse.
Why Your Cron Job Isn't Running (and How to Find Out Fast)
A practical troubleshooting path for cron jobs that silently fail on Linux servers: environment, paths, permissions, logging and how to make jobs observable.
Linux Disk Full: Finding What's Eating Space and Cleaning Up Safely
What to do when a Linux server runs out of disk space: use df and du, spot deleted-but-open files and inode exhaustion, and clean up without breaking anything.