Course Objective & Scope
From cloud instances and container hosts to data platforms, the majority of enterprise workloads run on Linux. This course prepares system and DevOps teams to deploy and operate RHEL/Rocky and Ubuntu servers with confidence.
The shell and text-processing tools, user/group and sudo permissions, online disk expansion with LVM, systemd services and journalctl log analysis, network and SSH hardening, and bash automation scripts are covered through hands-on labs. Participants build a server provisioning script and a troubleshooting guide aligned with their organisation's standards.
Who Should Attend?
- System administrators and infrastructure engineers managing Linux servers
- DevOps teams working with containers, Kubernetes and CI/CD hosts
- Software developers troubleshooting application servers
- Prerequisite: basic computer and operating system concepts
Key Takeaways
- Analyse logs and configuration files quickly using CLI tools and pipes
- Configure users, groups, ACLs and sudo rights following least privilege
- Manage LVM, ext4/XFS file systems and fstab mounts without downtime
- Write systemd unit files and monitor services and scheduled timers
- Pinpoint CPU, memory, disk I/O and network bottlenecks and automate routine tasks in bash
Curriculum
Command Line, File Hierarchy and Text Processing
- FHS directory layout, redirection and pipes
- Using grep, sed, awk, find and tar
Users, Permissions and Security Hardening
- User/group management, chmod, chown, SUID/SGID and ACLs
- Configuring sudoers and SSH key/hardening settings
- SELinux and AppArmor essentials
Storage, LVM and Package Management
- Disk partitioning, LVM (PV, VG, LV) and online resizing
- ext4, XFS, mounts and /etc/fstab
- Package and repository management with dnf/yum and apt
Services, Processes and Network Configuration
- ps, top/htop, signals and systemd/journalctl
- ip, ss, Netplan/NetworkManager and DNS
- firewalld and ufw/nftables rules
Bash Scripting and Performance Troubleshooting
- Writing bash scripts with variables, loops, conditionals and error handling
- Bottleneck analysis with vmstat, iostat and sar
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