Linux Server Hardening — The Hardening Bench

A hands-on, workshop-style mid-level course that hardens a Linux server one control at a time. Work the hardening surface board — Accounts, SSH, Services, Firewall, Filesystem, Kernel, Logging, Updates — applying real commands and configs, verifying every change on the running system, and building a reproducible, fleet-ready baseline. Four hands-on activities in every lesson.

What you'll learn

• Harden a Linux server as attack-surface reduction, applying and verifying changes safely.
• Lock down accounts and SSH — least-privilege sudo, key-only auth, no self-lockout.
• Reduce the service surface, build a default-deny firewall, and harden the filesystem and kernel.
• Instrument logging and auditing and sustain a hardened baseline across a fleet.

Sign in to enrol — you can pay by bKash or Nagad, or apply a promo code.