RH255 - Red Hat System Administration III with RHCSA and RHCE Exams

RH255 - Red Hat System Administration III with RHCSA and RHCE Exams

RH255 - Red Hat System Administration III with RHCSA and RHCE Exams


  • 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


Getting started with the classroom environment

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

Enhance user security

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

Bash scripting and tools

  • Automate system administration tasks using Bash scripts and text-based tools.

File security with GnuPG

  • Secure files with GnuPG.

Software management

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

Network monitoring

  • Profile running services, then capture and analyze network traffic.

Route network traffic

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

Secure network traffic

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

NTP server configuration

  • Configure an NTP server.

File systems and logs

  • Manage local file-system integrity; monitor systems over time and system logging.

Centralized and secure storage

  • Access centralized storage (iSCSI) and encrypt file systems.

SSL-encapsulated web services

  • Understand SSL certificates and deploy an SSL-encapsulated web service.

Web server additional configuration

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

Basic SMTP configuration

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

Caching-only DNS server

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

File sharing with NFS

  • Configure file sharing between hosts with NFS.

File sharing with CIFS

  • Configure file and print sharing between hosts with CIFS.

File sharing with FTP

  • Configure file sharing with anonymous FTP.

Troubleshooting boot process

  • Understand the boot process and recover unbootable systems with rescue mode.


  • Senior Linux system administrators who require networking and security administration skills
  • Linux IT professionals who currently have an RHCT or RHCSA certificationand are interested in earning an RHCE certification
  • Linux IT professionals who can demonstrate the competencies needed to earn an RHCSA


  • RHCSA Rapid Track Course with exam (RH200) or the combination of Red Hat System Administration I (RH124) and Red Hat System Administration II with exam (RH135) courses
  • Equivalent experience to the RHCSA Rapid Track Course (RH200)
  • Skills required to earn an RHCT/RHCSA certification


This course is not associated with any Certification.


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