The Red Hat Security Response
Red Hat Severity Scoring
What are CVEs and Red Hat Errata?
Discuss Package Maintenance Through Backporting
Engaging the Red Hat Security Response Team

Develop an Update Process
Applying Security Updates
Validate Package Integrity and Scripts

Allocating Filesystems for Secure Containment
Implementing Filesystem Encryption

Secure Filesystems Using Security-Related Mount Options
Secure Individual Files with Filesystem Attributes

Special Permissions Concepts
Manipulating Special Permissions
Auditing Files with Special Permissions

Setting Default File Permissions
Managing Access Control Lists

Using Intrusion Detection Software to Monitor Changes

Managing Password Aging
Auditing User Accounts

PAM Syntax And Configuration
PAM Documentation
Configure Password Requirements through PAM
Supplementary PAM Configuration
Lock Accounts With Multiple Failed Logins

Securing GRUB Bootloader
Modifying Text Console Settings
Modifying Graphical Console Settings

Installing an Identity Management (IdM) Server
Adding User and Group Entries to Identity Management (IdM)
Registering a Client System with Identity Management (IdM)

Controlling IdM User Access to Systems
Managing sudo on IdM Client Systems

Configuring rsyslog Log File Management
Managing Log File Rotation

Configuring System Auditing
Audit Reporting
Writing Custom Audit Rules
Using Predefined Audit Sets

Review of iptables Basics
Advanced iptables

Configure advance rules to detect unwanted attack
Protect unwanted attack

Install Anti-virus in linux
Configure schedule scan

Use nmap to scan ports
Use nmap NSE script to scan vulnerability of applications

Use tcpdump and wireshark to capture traffic
Analyze traffic