Security · Databases & Data
Manage MariaDB users, passwords, roles, and rotation safely
Create host-scoped accounts, assign roles, rotate credentials without exposing them in shell history, test grants, and retire access.
Account
Operational guides
Complete procedures with a way back.
Searchable, versioned procedures with prerequisites, verification, concrete output, and rollback.
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Security · Databases & Data
Manage MySQL 8.4 users, passwords, roles, and rotation
Create source-scoped accounts, use roles, enforce TLS and password policy, rotate without command-line leakage, test denial, and retire access.
Databases & Data · Security
Install and secure MySQL on Ubuntu
Install MySQL, remove unsafe defaults, create a least-privilege application database, optionally allow restricted TLS network access, and prove backup readiness.
System Administration · Security
Perform an initial Ubuntu Server setup and security hardening
Create a named administrator, prove key-based recovery access, patch the host, restrict SSH, enable a host firewall, and verify time and exposed services.