All courses
Course category

Linux Security & Infrastructure courses

Harden and defend production Linux infrastructure

Learn Linux hardening, SSH security, PAM, sudo, file permissions, auditd, firewall rules, logging, backup evidence, and production system security.

Featured program

9 modules · 6–8 weeks

Linux Security Hardening for Production Servers

Master SSH security, user access control, sudo, PAM, permissions, firewall rules, auditd, log review, backup evidence, and CIS-style hardening practices.

IntermediateLabs
View course

1

Spotlight programs

In catalog

4

Skill areas

Catalog

All published linux security & infrastructure courses

Live programs from the PentesterWorld course catalog — filtered for this domain.

Loading courses…

Outcomes

What you will learn

  • Harden SSH, sudo, PAM, and file permissions
  • Configure logging, auditd, and firewall rules
  • Collect audit evidence aligned with CIS benchmarks
  • Operate securely in DevOps and production environments

Topics

Example course themes

Linux Security Hardening MasterclassLinux Audit Readiness CourseSSH Security for Production SystemsCIS Linux Benchmark Practical Course

Continue learning

Related paths & resources

Combine courses with tutorials, roadmaps, labs, and compliance hubs.