Linux Administrator

Unit 1 - Administrative Access

  • Configure and access various consoles directly, remotely with ssh, and with virt-manager.

  • Getting help in linux

  • Configure privilege escalation with sudo.

Unit 2 - User Administration

  • Create, modify and delete users, groups, and policy.

  • Protect users and groups with quotas.

Unit 3 - Control access to files

  • Set Linux file system permissions on files and to interpret the security effects of different permission settings.

Unit 4 – File systems for Group Collaboration

  • Establish collaborative group directories.

  • Protect users and groups with ACLs.

Unit 5 - Package Management

  • Manage software on system using yum, Red Hat Network, and rpm.

Unit 6 - System Services and Security

  • Configure and manage system logging, time synchronization, printers, and task automation.

Unit 7 - System Initialization

  • Define boot process, recover system, and manage service startup.

Unit 8 - Kernel Monitoring and Configuration

  • Explore kernel modules and variants, tune kernel parameters, manage devices, and monitor processes and resources.

Unit 9 - Network Configuration

  • Configure dynamic and static network settings for IPv4 and filter packets.

Unit 10 - Filesystem Administration

  • Configure local storage

  • List, create, delete partitions on MBR and GPT disks

  • Diagnose and correct file permission problems

  • Review filesystem management concepts, removable media and configure NFS shares with autofs.

Unit 11 - Additional Storage

  • Expand storage by adding new filesystems and swap space.

Unit 12 - Centralized User Administration

  • Revisit user administration by connecting to network directory services like NIS and LDAP.

Unit 13 - Software RAID

  • Manage filesystems using Software RAID and recover an array.

Unit 14 - Logical Volume Management

  • Manage filesystems using Logical Volume Management.

  • Resize filesystems and protect them with LVM Snapshots.

Unit 15 - Virtualization and Automated Installation

  • Perform automated installations of Red Hat Enterprise Linux.

  • Create para-virtualized user domains in Xen.

  • KVM

Unit 16 - Troubleshooting with Rescue Mode

  • Explore troubleshooting methodologies.

  • Utilize the rescue environment of anaconda.

Unit 17: Account Management

Understand account management using Name Switch Service and Pluggable Authentication Modules.

Unit 18: Analyze and store logs

Locate and accurately interpret logs of system events for troubleshooting purposes.

Unit 19: Schedule future tasks

Schedule tasks to automatically execute in the future.

Unit 20: Manage SELinux security

Protect and manage the security of a server by using SELinux.

Unit 21: Manage network security

Control network connections to services using the system firewall and SELinux rules.

Unit 22: Tune system performance

Evaluate and control processes, set tuning parameters, and adjust process scheduling priorities on a Red Hat Enterprise Linux system.


Module 2: RH253 Red Hat Linux Networking and Security Administration Duration: 38 Hrs/1 Week

Unit 1: System Performance and Security

Identify how concepts and well formed policy map to configuration and accountability in networking and security administration.

Unit 2: System Service Access Controls

Implement secure access to system and network services using host-based access, SELinux, and system services management.

  • ssh Port Forwarding

  • Iscsi Target/ Initiator

  • rpmbuildup

  • ssh port forwarding

Unit 3: Securing Data

Secure data using fundamental encryption protocols, Public Key Infrastructure, and Digital Certificates. Configure and utilize encrypted remote system administration tools.

Unit 4: Network Resource Access Controls

Secure access to systems and services using the NetFilter kernel-level firewall.

Unit 5: Organizing Networked Systems

Understand and implement organized networked systems using the DNS and DHCP services.

Unit 6: Network File Sharing Services

Configure, control and secure access to FTP, NFS, and SMB/CIFS (Samba).

Unit 7: Web Services

Configure, implement, and secure access to the Apache Web Server and Squid Proxy Cache.

Unit 8: Electronic Mail Services

Configure, implement, and secure access to the Sendmail and Postfix SMTP servers.

Module 3: RHEL 8 New Features                   Duration: 16 hours/1 Week

Unit 1: Red Hat Enterprise Linux 8 Overview

Red Hat Enterprise Linux 8 Overview

Unit 2:. Installing or Upgrading to Red Hat Enterprise Linux 8

Installing Red Hat Enterprise Linux 8

Upgrading Servers to Red Hat Enterprise Linux

Unit 3. Provisioning and Configuring Servers

Performing Package Management using Yum

Administering Servers with Cockpit

Building System Images with Composer

Automating with RHEL System Roles

Unit - 4. Adapting to Core System Changes

Displaying the Desktop with Wayland and X

Managing User Authentication with Authselect

Configuring NTP with

Managing Python Versions in Red Hat Enterprise Linux 8

Unit - 5. Implementing Storage Using New Features

Managing Layered Storage with Stratis

Compressing and Deduplicating Storage with

Administering NFS Enhancements

Unit - 6. Managing Containers with the New Runtime

Deploying Containers with the New Container Runtime

Unit - 7. Implementing Enhanced Networking Features

Managing Server Firewalls in RHEL 8

Configuring Server Networking with NetworkManager

Unit - 8. Adapting to Virtualization Improvements

Configuring Virtual Machines

Introduction of Red Hat Cluster

Introduction of Basic Virtualization { Xen, Kvm, VMware & RHEV }