Red Hat System Administration III (RH254)

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About this Course

Red Hat System Administration III (RH254) is designed for experienced Linux® administrators who require networking and security administration skills. With a heavy emphasis on practical, hands-on labs, focus is placed on enhancing automation skills to securely configure, deploy, and manage network services including DNS, Apache, SMTP, and network file sharing. In addition, this course emphasizes security, including monitoring, packet filtering, access controls, and SELinux.

At the completion of this course, students already familiar with the Red Hat Certified Technician (RHCT)/Red Hat Certified System Administrator (RHCSA) administration skills will have exposure to all competencies tested by the RHCSA and Red Hat Certified Engineer (RHCE®) exams. Exams sold separately.

Course Content

During the course, students will cover the following:
  • Enhancing user security
  • Disk management with Internet Small Computer System Interface (iSCSI)
  • System and network activity monitoring
  • Network management and packet filtering
  • Software management
  • Web service management
  • File sharing across platforms
  • Basic SMTP management

Course Outline

1. Getting started with the classroom environment

Objective: Given a virtualized environment, begin to administrate multiple systems using prerequisite skills.

2. Enhance user security

Objective: Configure system to use Kerberos to verify credentials and grant privileges via sudo.

3. Bash scripting and tools

Objective: Automate system administration tasks utilizing Bash scripts and text-based tools.

4. File security with GnuPG

Objective: Secure files with GnuPG.

5. Software management

Objective: Use yum plug-ins to manage packages; understand the design of packages; build a simple package.

6. Network monitoring

Objective: Profile running services, then capture and analyze network traffic.

7. Route network traffic

Objective: Configure system to route traffic and customize network parameters with sysctl.

8. Secure network traffic

Objective: Secure network traffic through SSH port forwarding and iptables filtering/network address translation (NAT).

9. NTP server configuration

Objective: Configure an NTP server.

10. File systems and logs

Objective: Manage local file system integrity; monitor systems over time and system logging.

11. Centralized and secure storage

Objective: Access centralized storage (iSCSI) and encrypt file systems.

12. SSL-encapsulated web services

Objective: Understand SSL certificates and deploy an SSL-encapsulated web service.

13. Web server additional configuration

Objective: Configure a web server with virtual hosts, dynamic content, and authenticated directories.

14. Basic SMTP configuration

Objective: Configure an SMTP server for basic operation (null client, receiving mail, smarthost relay).

15. Caching-only DNS server

Objective: Understand DNS resource records and configure a caching-only name server.

16. File sharing with NFS

Objective: Configure file sharing between hosts with NFS.

17. File sharing with CIFS

Objective: Configure file and print sharing between hosts with CIFS.

18. File sharing with FTP

Objective: Configure file sharing with anonymous FTP.