Udemy – Linux Security & Network Hardening: Practical Defense 2025-6

Linux Security & Network Hardening: Practical Defense is a course on securing Linux systems and hardening network infrastructures against potential threats published by Udemy Online Academy. This is a comprehensive course that focuses on securing Linux systems and hardening network infrastructures against potential threats. The course covers essential techniques for hardening servers, implementing access controls, configuring firewalls, managing security updates, detecting intrusions, and minimizing attack surfaces. Individuals will learn practical and real-world defense strategies to protect systems from internal and external vulnerabilities, ensuring a robust and resilient environment for critical services.

This course will equip you with the essential knowledge and practical techniques for securing Linux systems and cover the critical aspects of system logging, auditing, data security, and service hardening. By the end of this course, you will have the practical and applicable knowledge to strengthen your Linux systems and become a more skilled and security-aware Linux administrator.

What you will learn in Linux Security & Network Hardening: Practical Defense:

• Securely manage Linux logs with syslog, rsyslog, and journald for effective system monitoring
•  Check user passwords and file system access with advanced tools like John the Ripper and Auditd
•  Encrypt disks and files with LUKS and GPG to protect sensitive data and ensure secure data transfer
•  Harden services with SELinux, chroot jails, and LXC containers for increased system isolation and security
•  And…

Course specifications

Publisher: Udemy
Instructors: CloudsArk Academy and Mo Khalil
Language: English
Level: Intermediate
Number of Lessons: 14
Duration: 2 hours and 37 minutes

Course topics

Linux Security & Network Hardening: Practical Defense Prerequisites

Learners will need access to a Linux system (physical, virtual, or cloud-based) to practice hands-on exercises. All tools—like syslog, rsyslog, journald, Auditd, John the Ripper, LUKS, GPG, fail2ban, SELinux, chroot, and LXC—are included in most Linux distributions.

Pictures

Linux Security & Network Hardening: Practical Defense introduction video

Installation guide

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Subtitle: None

Quality: 720p

Download link

Download – 440 MB

Size

440 MB