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When studying for the Red Hat System Administration III (RH254) course, here are some key knowledge points to focus on:
1) Network Services:
• Deploy and manage network servers running caching DNS, MariaDB, Apache HTTPD, and Postfix SMTP nullclients.
• Configure network file sharing with NFS and SMB.
2) Advanced Networking:
• Manage IPv6 networking and configure link aggregation and bridging.
• Control network port security using SELinux and firewalld.
3) Storage Management:
• Provide and use networked iSCSI block devices as remote disks.
• Configure NFS exports and SMB file shares.
4) Database and Web Services:
• Set up and manage MariaDB databases.
• Configure Apache HTTPD to provide TLS-enabled websites and virtual hosts.
5) Automation and Scripting:
• Write and use Bash scripts for automation.
• Utilize Bash conditionals and control structures for more sophisticated scripting.
6) System Management:
• Control services and daemons using systemctl.
• Customize the shell environment with environment variables, aliases, and functions.
7) Security:
• Implement advanced SELinux and firewalld filtering techniques.
• Secure DNS configurations and email delivery systems.
8) Linux Containers:
• Preview the capabilities of Linux containers and related technologies like Docker.
These topics will help you prepare for the Red Hat Certified Engineer (RHCE) exam and broaden your ability to administer Linux systems at an enterprise level. Good luck with your studies! If you have any specific questions or need further details on any of these topics, feel free to ask in our experts forum.