Mastering Linux System Administration

Description:

This hands-on Linux System Administration training equips participants with the foundational to intermediate skills needed to manage, maintain, and troubleshoot Linux servers. Focusing on Red Hat Enterprise Linux 7 (RHEL 7), the training covers a wide range of essential topics including filesystem structure, user and permission management, service configurations, networking, performance monitoring, RAID/LVM, and system recovery techniques.

With immersive labs and real-world scenarios, this training prepares learners to work confidently as Linux administrators in enterprise IT environments and provides a strong base for future certifications such as RHCSA or RHCE.

Duration: 3 Days

Course Code: BDT 502

Learning Objectives:

By the end of this course, participants will be able to:

• Install, configure, and manage RHEL 7 Linux systems.
• Administer users, groups, and file system permissions effectively.
• Configure key services including SSH, FTP, NFS, Apache, and DNS.
• Manage storage through disk partitioning, LVM, and RAID setups.
• Monitor system performance and perform basic system recovery.
• Automate tasks using crontab and manage packages with YUM and RPM.
• Understand advanced tools like SELinux, Satellite Server, and Kdump.

This course is ideal for:

• System administrators and support staff.
• DevOps engineers and infrastructure professionals.
• Beginners aiming for RHCSA-level proficiency.
• Anyone responsible for managing Linux-based servers.

• Basic understanding of computer systems and networking.
• Familiarity with command-line interface is helpful but not mandatory.

Course Outline:

Module 1: Introduction to Linux

• Linux/Unix fundamentals
• Filesystem structure
• Installation of RHEL 7 using VMware

Module 2: User and Permission Management

• File types and permissions
• Access modes (absolute & symbolic)
• Special permissions: SUID, SGID, Sticky Bit
• User & group administration
• Password aging and shadow file
• sudo & visudo configurations

Module 3: Bash Shell & I/O Redirection

• Bash profile and environment variables
• PATH variable and shell configuration files
• Input/output redirection, pipes

Module 4: Job Scheduling with Crontab

• Crontab syntax and time expressions
• Hands-on scheduling jobs

Module 5: Remote Access and Services

• OpenSSH server configuration
• Telnet setup and testing

Module 6: Process and Resource Management

• Foreground and background processes
• Monitoring with top, vmstat
• Using kill and managing jobs

Module 7: Disk and RAID Configuration

• Disk layout, fdisk, and partitioning
• Understanding /etc/fstab
• RAID concepts and levels (RAID 0, 5)
• Recovery of RAID failures

Module 8: Logical Volume Management (LVM)

• PV, VG, LV concepts and commands
• Creating, extending, and recovering volumes
• Metadata and volume recovery labs

Module 9: Package and Software Management

• RPM package manager
• YUM server setup and configuration
• Yum history and rollback commands

Module 10: System Updates and Upgrades

• Performing minor OS upgrades (e.g., RHEL 7.1 → 7.2)

Module 11: File and Web Services

• FTP setup with vsftpd
• NFS server configuration
• Kickstart server (overview and automation)

Module 12: Apache Web Server Administration

• Apache installation and configuration
• Virtual hosts, security, .htaccess
• Indexes and directory restrictions

Module 13: DNS and Networking

• DNS structure and resolution process
• Network interface configuration
• Routing and troubleshooting

Module 14: File Search and Performance Tuning

• find command for searching files
• Performance monitoring: CPU, memory, disk I/O
• Network performance tools

Module 15: Kernel and Boot Process

• Kernel modules and configuration
• Boot process stages and runlevels
• Basic system recovery techniques

Module 16: SELinux and Security

• SELinux modes and context
• Booleans and audit logs
• Troubleshooting SELinux issues

Module 17: Advanced Recovery and Enterprise Tools

• Rescue and Emergency mode in RHEL 7
• Resetting root password
• Kdump configuration
• Red Hat Satellite Server (overview and setup)

Module 18: Backup and Restore

• Backup concepts and types
• Using dump for backups
• Hands-on recovery scenarios

Training Material Provided:

• Course slides and reference guides