This Week in IT: Database Security Best Practices, Ansible Updates, and Training Deals

Welcome to the third week of our March IT roundup. This week we focus on database security practices, Ansible ecosystem updates, free training opportunities, and emerging monitoring trends.

Database Security: Recent Vulnerabilities and Best Practices

Several database-related security issues made headlines this week, reminding us of the importance of proper database security:

PostgreSQL Security Update

The PostgreSQL project released minor version updates addressing a privilege escalation vulnerability in the COPY FROM PROGRAM feature. All production PostgreSQL servers should be updated to the latest minor version of their major release.

# Check your PostgreSQL version
psql --version

# Update on Ubuntu/Debian
sudo apt update && sudo apt upgrade postgresql

# Update on AlmaLinux/RHEL
sudo dnf update postgresql-server

MySQL Configuration Hardening Checklist

Review these essential MySQL security settings:

• Run mysql_secure_installation on all new deployments
• Disable remote root login
• Use SSL/TLS for all connections
• Implement least-privilege user accounts
• Enable the audit log plugin
• Regular backup testing (backups you haven't tested are not backups)

Ansible Ecosystem Updates

Ansible Core 2.17

The latest Ansible core release includes several improvements:

• Better error messages for common YAML syntax mistakes
• Performance improvements for large inventories (1000+ hosts)
• New modules for managing cloud resources on AWS, Azure, and GCP
• Improved Jinja2 template rendering performance

Ansible Galaxy Collections

Notable collection updates this week:

• community.postgresql — New modules for logical replication management
• community.docker — Improved Docker Compose v2 support
• ansible.posix — Enhanced firewalld and SELinux modules

Free Training Resources for March

• Linux Foundation Training — Free "Introduction to Linux" course on edX
• AWS Free Tier — 12 months of free cloud services for hands-on practice
• Kubernetes Academy — Free KodeKloud courses for CKA preparation
• GitHub Learning Lab — Interactive Git and GitHub courses

Monitoring Trends: OpenTelemetry Adoption

OpenTelemetry is becoming the standard for observability instrumentation. More organizations are adopting it for unified tracing, metrics, and logging across their infrastructure. Key benefits include vendor-neutral instrumentation and a single SDK for all telemetry data.

Recommended Reading

• PostgreSQL Database Setup — Secure database deployment
• Ansible Automation — Master infrastructure automation
• Linux Security Hardening — Comprehensive server security