1. Introduction to the Command Line
  • Accessing the command line.
  • Using basic bash commands.
  • Navigating file systems and directories.
  • Viewing and manipulating files (cat, less, head, tail).
  • Creating, deleting, and copying files (cp, mv, rm).
  • Understanding file permissions and ownership (ls -l, chmod, chown).
  • Adding and removing users and groups.
  • Modifying user properties.
  • Password management and security policies.
  • File permissions and access control.
  • Managing default permissions (umask).
  • Using Access Control Lists (ACLs).
  • Viewing running processes (ps, top).
  • Managing process priority (nice, renice).
  • Terminating processes (kill, pkill).
  • Using yum and dnf for package management.
  • Managing software repositories.
  • Verifying and removing packages.
  • Configuring network interfaces.
  • Managing IP addresses and routes.
  • Troubleshooting network connectivity with tools (ping, curl, netstat).
  • Creating and extracting archives (tar, gzip, bzip2).
  • Transferring files securely (scp, rsync).
  • Starting and stopping services with systemctl.
  • Managing service enablement at boot.
  • Understanding the system boot process and GRUB2.
  • Viewing system logs (journalctl, /var/log).
  • Managing log files.
  • Configuring logging with rsyslog.
  • Creating and formatting partitions.
  • Mounting and unmounting file systems.
  • Managing swap space.

SA2 134

  1. Automating Administrative Tasks with Shell Scripts
  • Writing basic shell scripts.
  • Automating repetitive tasks using loops and conditionals (for, while, if).
  • Using environment variables in scripts.
  • Debugging and testing scripts.
  1. Enhancing System Security
  • Managing firewalldto control network traffic.
  • Configuring port-based rules and zones.
  • Using SELinux in targeted mode.
  • Managing SELinux contexts, policies, and troubleshooting.
  1. Managing Storage
  • Creating and managing logical volumes (LVM).
  • Expanding and shrinking LVM volumes.
  • Configuring RAID (Redundant Array of Independent Disks).
  • Mounting and unmounting network file systems (NFS, SMB).
  • Auto-mounting file systems with autofs.
  1. Controlling Services and the Boot Process
  • Managing services with systemd(systemctl).
  • Configuring service startup at boot.
  • Understanding and configuring boot targets (rescue/emergency mode).
  • Analyzing and troubleshooting the boot process.
  1. Managing Network Configuration
  • Configuring static and dynamic network interfaces.
  • Managing network bridges and bonds.
  • Configuring hostname and name resolution (DNS).
  • Troubleshooting network connectivity issues.
  1. Managing Software and Package Updates
  • Updating software with dnfand managing repositories.
  • Configuring subscription management and repositories.
  • Handling AppStream modules and package streams.
  1. Scheduling Tasks
  • Automating jobs with cronand at.
  • Managing scheduled tasks for recurring and one-time execution.
  • Editing user-specific crontabs.
  1. Managing User Access and Authentication
  • Configuring sudofor delegated privileges.
  • Managing SSH for secure remote access.
  • Configuring key-based authentication.
  • Implementing system-wide authentication policies.
  1. Accessing Linux File Systems
  • Understanding and using different file system types.
  • Creating and managing file systems.
  • Checking and repairing file systems using fsck.
  • Configuring quotas to manage disk usage.
  1. Tuning System Performance
  • Monitoring CPU, memory, and disk I/O.
  • Using tools like top, htop, iotop, and vmstat.
  • Adjusting system parameters for performance optimization.
  1. Analyzing and Managing Logs
  • Using rsyslogfor centralized logging.
  • Viewing and filtering logs with journalctl.
  • Managing log file rotation and retention.

RHCE (Red Hat Certified Engineer)

  1. System Configuration and Management
  • Managing system startup and boot processes.
  • Configuring kernel runtime parameters.
  • Automating tasks with cronand systemd
  • Managing services with systemctl.
  1. Network Configuration and Security
  • Configuring network interfaces, bonding, and bridging.
  • Configuring static routes and DNS settings.
  • Securing network services with firewalldand iptables.
  • Managing SELinux policies and contexts.
  • Configuring port security using TCP wrappers.
  1. Managing Storage and Filesystems
  • Configuring and managing iSCSI initiators and targets.
  • Configuring multipath storage.
  • Managing logical volumes (LVM) and RAID.
  • Creating and mounting network file systems (NFS, SMB).
  • Configuring quotas and file permissions.
  1. Advanced User Management and Authentication
  • Configuring centralized authentication with LDAP.
  • Managing users and groups with custom permissions.
  • Setting up SSH for remote access and key-based authentication.
  • Configuring sudofor access delegation.
  1. Web and Database Services Configuration
  • Deploying and managing Apache HTTP Server.
  • Configuring virtual hosts, secure HTTP (SSL/TLS).
  • Setting up MySQL or MariaDB databases.
  • Managing database users and permissions.
  1. Email Services and File Sharing
  • Configuring email services with Postfix.
  • Managing and securing mail traffic.
  • Setting up file sharing using NFS and Samba.
  1. System Monitoring and Performance Tuning
  • Monitoring system performance using top, vmstat, iotop.
  • Analyzing system logs and journal logs (journalctl).
  • Managing resource limits with cgroups.
  • Performance tuning for CPU, memory, and I/O.
  1. Advanced Networking Services
  • Configuring and securing SSH.
  • Setting up DNS caching and forwarding.
  • Configuring DHCP services.
  • Managing networking with NetworkManager.
  1. System Security and Hardening
  • Configuring and enforcing SELinux policies.
  • Using auditing tools to monitor security.
  • Hardening the system against attacks using security best practices.
  • Managing GPG keys and secure package management.
  1. Troubleshooting and Rescue Techniques
  • Diagnosing boot issues using GRUB2.
  • Recovering from filesystem and disk errors.
  • Using rescue mode and recovery tools.
  • Debugging network and service issues.

ANSIBLE

  1. Introduction to Ansible
  • Overview of automation with Ansible.
  • Understanding Ansible architecture and concepts.
  • Installing and configuring Ansible.
  • Ansible inventory and configuration files.
  1. Running Ad-Hoc Commands
  • Using ad-hoc commands to manage systems.
  • Managing users, packages, and services with ad-hoc commands.
  • Verifying connectivity and system configuration.
  1. Writing Ansible Playbooks
  • Introduction to playbooks and YAML syntax.
  • Creating and running Ansible playbooks.
  • Understanding tasks, handlers, and modules.
  • Using conditionals, loops, and variables.
  1. Managing Variables and Facts
  • Defining and using variables in playbooks.
  • Gathering and using facts.
  • Registering and reusing task results.
  1. Roles and Reusability
  • Structuring Ansible projects with roles.
  • Creating, organizing, and using roles.
  • Ansible Galaxy and downloading community roles.
  1. Configuring Ansible Vault
  • Encrypting sensitive data with Ansible Vault.
  • Creating and using encrypted variables and files.
  • Managing vault passwords securely.
  1. Troubleshooting and Debugging Ansible
  • Debugging playbooks with error messages.
  • Using Ansible debug and verbosity options.
  • Managing playbook errors and failures.
  1. Managing Large Inventories
  • Working with dynamic inventories.
  • Managing inventory groups and host variables.
  • Using inventory plugins and scripts.
  1. Ansible Modules and Customization
  • Exploring core modules (file, package, service).
  • Writing custom Ansible modules.
  • Using lookup plugins and filters.
  1. Automating with Ansible Tower (Optional)
  • Introduction to Ansible Tower (AWX).
  • Managing automation workflows at scale.
  • Using job templates and scheduling.

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