Red Hat Linux // RH255

RH255 Red Hat System Administration III with RHCSA & RHCE Exam

Advanced skills for the experienced Linux administrator.

Course Description

Red Hat System Administration III with RHCE Exam (RH255) is designed for experienced Linux administrators who require networking and security administration skills. With a heavy emphasis on practical, hands-on labs, this course is tightly aligned with experienced Linux administrators' job tasks and the skills required for advancement. Focus is placed on enhancing the students' 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 RHCT/RHCSA administration skills will have exposure to all competencies tested by the RHCSA and RHCE exams. This class includes the RHCSA and the RHCE exams.

Audience

Senior Linux system administrators who require networking and security administration skills; Linux IT professionals who currently have RHCT/RHCSA certification, and are interested in earning an RHCE certification. Linux IT professionals that can demonstrate the competencies needed to earn an RHCT/RHCSA, but have not passed the RHCSA exam provided with the Red Hat System Administration II course

Prerequisites

Before taking this course, students should have successfully completed the following courses or have equivalent experience:
  • RHCSA Rapid Track Course (RH200) or Red Hat System Administration I & II (RH124& RH134)
  • Equivalent experience to the RHCSA Rapid Track Course
  • Skills required to earn an RHCT/RHCSA certification

What You Will Learn

After completing this course you will understand:
  • Enhancing user security
  • Disk management with 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

Module 1: Getting Started with the Classroom Environment 
Given a virtualized environment, begin to administrate multiple systems using prerequisite skills
Module 2: Enhance User Security 
Configure system to use Kerberos to verify credentials and grant privileges via sudo
Module 3: Bash Scripting and Tools 
Automate system administration tasks utilizing Bash scripts and text-based tools
Module 4: File Security with GnuPG 
Secure files with GnuPG.
Module 5: Software Management 
Use yum plugins to manage packages and understand the design of packages to build a simple package
Module 6: Network Monitoring 
Profile running services then capture and analyze network traffic
Module 7: Route Network Traffic 
Configure system to route traffic and customize network parameters with sysctl
Module 8: Secure Network Traffic 
Secure network traffic through SSH port forwarding and iptables filtering/network address translation (NAT)
Module 9: NTP Server Configuration 
Configure an NTP server
Module 10: Filesystems and Logs 
Manage local file system integrity, monitor system over time, and system logging
Module 11: Centralized and Secure Storage 
Access centralized storage (iSCSI) and encrypt filesystems
Module 12: SSL-encapsulated Web Services 
Understand SSL certificates and deploy an SSL encapsulated web service
Module 13: Web Server Additional Configuration 
Configure web server with virtual hosts, dynamic content, and authenticated directories
Module 14: Basic SMTP Configuration 
Configure an SMTP server for basic operation (null client, receiving mail, smarthost relay)
Module 15: Caching-Only DNS Server 
Understand DNS resource records and configure a caching-only name server
Module 16: File Sharing with NFS 
Configure file sharing between hosts with NFS
Module 17: File Sharing with CIFS 
Configure file and print sharing between hosts with CIFS
Module 18: File Sharing with FTP 
Configure file sharing with anonymous FTP
Module 19: Troubleshooting Boot Process 
Understand the boot process and recover unbootable systems with rescue mode
Follow up courses:
Red Hat Enterprise Linux Troubleshooting (RH242)
Red Hat Enterprise Virtualization (RH318)
Red Hat Enterprise Security: Network Services (RHS333)
Red Hat Enterprise Deployment, Virtualization and Systems Management (RH401)
Red Hat Enterprise Directory Services and Authentication (RH423)
Red Hat Enterprise SE Linux Policy Administration (RHS429)
Red Hat Enterprise Clustering and Storage Management (RH436)
Red Hat Enterprise System Monitoring and Performance Tuning (RH442)