Development [Lynda] Linux: Firewalls and SELinux

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DESCRIPTION:

This course takes you through the basics of firewalls on Linux. Sean Colins shows you how to configure Firewalld for local protection, work with SELinux, and troubleshoot firewalls. He also covers iptables, default policies, port blocking, and port forwarding. Learn how to install GUI controls and utilities, manage zones and services, enable servers, set access controls, change ports, move files, and more.

Topics include:

• Installing Firewalld
• Exploring zones and services
• Allowing the Apache web server
• Allowing FTP and SFTP servers
• Installing SELinux utils
• Setting discretionary or mandatory access
• Installing SELinux man pages
• Working with Booleans
• Changing context labels
• Running sepolicy
• Finding SELinux logs
• Making domains permissive
• Disabling and reenabling SELinux
• Working with iptables

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