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RHS333 - Red Hat Enterprise Security: Network Services

RHS333 trains people with RHCE-level competency to understand, prevent, detect, and properly respond to sophisticated security threats aimed at enterprise systems. The course equips system administrators and security professionals with the skills and knowledge to harden computers against both internal and external attacks, providing in-depth analysis of the ever-changing threat models as they pertain to Red Hat Enterprise Linux.

Audience:

The audience for this course includes system administrators, consultants, and other IT professionals responsible for the planning, implementation, and maintenance of network servers. While the emphasis is on running these services on Red Hat Enterprise Linux, and the content and labs will assume its use, system administrators and others using proprietary forms of Unix may also find many elements of this course relevant.

Prerequisites:

RH253, RH300, or RHCE certification or equivalent work experience is required for this course.

Course participants should already know the essential elements of how to configure the services covered, as this course will be focusing on more advanced topics from the outset.

Duration: 4 days ( 32 Hrs.)

Course Contents:

Mastering basic service security

Review of host security
Advanced TCP wrappers configuration
Advanced xinetd configuration

Understanding cryptography

Overview of cryptographic techniques
Management of SSL certificates

Logging system activity

Clock synchronization with NTP
Configuring centralized syslog management

Securing BIND and DNS

Name server topology and "views
Configuration of appropriate recursion and response policies
Using TSIG authentication keys
Running BIND in a chroot environment

Network user authentication security

Managing portmap and NIS risks
Using Kerberos authentication

Improving NFS security

NFS security limitations
Configurations to avoid

The secure shell: OpenSSH

Protocol and service security
Protecting public-key authentication
Port-forwarding and X11-forwarding issues

Securing E-mail with Sendmail and Postfix

User mail spool access issues
Overview of Postfix configuration
Access control and STARTTLS
Anti-spam features
Introduction to Procmail

Managing FTP access

Controlling local and anonymous users

Apache security

User authentication and access control
Common misconfigurations
Containing CGI risks

Basics of intrusion response

Monitoring for suspicious activity
Verifying suspected intrusions
Recovering from an intrusion