Course description
The lessons in this course review concepts and commands related to traditional UGO file permissions of rwx, the special permissions like SetUID, SetGID and Sticky Bit. Lessons also cover advanced OS and application security through SELinux and AppArmor, as well as covering concepts like authentication, logging tools like rsyslog and the systemd journal, firewalls, backup and compression as well as general security best practices.
Syllabus
Permissions
Video — 00:40:04
An introduction to traditional Linux security, including rwx and special permissions. It includes additional coverage of privilege escalation techniques, such as su and sudo.
Advanced security
Video — 00:15:25
An introduction to advanced security tools, such as SELinux and AppArmor.
Managing access and authentication
Video — 00:30:12
An introduction to Linux authentication and authorization tools, as well as how to secure network traffic.
Common security best practices
Video — 00:12:38
An introduction to common security features and how to apply them in Linux environments.
Logging
Video — 00:11:11
An introduction to Linux logging features and the journal.
Linux firewalls
Video — 00:26:04
An introduction to general firewall concepts and specific Linux firewall tools like firewalld, iptables, ufw and netfilter, as well as Linux tools to control access.
Backups and compression
Video — 00:15:48
A review of common Linux backup, archiving and compression tools.
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