Hardened a Linux server with least-privilege access, firewall rules, SSH protection, automated updates, and practical monitoring.
Designed a segmented network using VLANs, clear addressing, firewall policies, and documentation that makes troubleshooting easier.
Built dependable backup routines with scheduled jobs, retention planning, verification checks, and recovery steps for critical data.
Created a lightweight monitoring setup to track service health, resource usage, availability, and useful alerts before issues escalate.