Linux System Administration (Elective - I) (Syllabus) [2018-2019]

Linux System Administration (Elective - I) (Syllabus) [2018-2019]

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Course: Linux System Administration

Unit – I

Introduction To Red Hat Enterprise Linux:

• Linux
• Open Source and Red Hat
• Origins of Linux
• Distributions
• Duties of Linux System Administrator

Command Line:

• Working with the Bash Shell
• Getting the Best of Bash
• Useful Bash Key Sequences
• Working with Bash History
• Performing Basic File System Management Tasks
• Working with Directories
• Piping and Redirection
• Finding Files

System Administration Tasks:

• Performing Job Management Tasks
• System and Process Monitoring and Management
• Managing Processes with ps
• Sending Signals to Processes with the kill Command
• Using top to Show Current System Activity
• Managing Process Niceness
• Scheduling Jobs
• Mounting Devices
• Working with Links
• Creating Backups
• Managing Printers
• Setting Up System Logging
• Setting Up Rsyslog
• Common Log Files
• Setting Up Logrotate

Managing Software:

• Understanding RPM
• Understanding Meta Package Handlers
• Creating Your Own Repositories
• Managing Repositories
• Installing Software with Yum
• Querying Software
• Extracting Files from RPM Packages

Unit – II
Configuring And Managing Storage:

• Understanding Partitions and Logical Volumes
• Creating Partitions
• Creating File Systems
• File Systems Overview
• Creating File Systems
• Changing File System Properties
• Checking the File System Integrity
• Mounting File Systems Automatically Through fstab
• Working with Logical Volumes
• Creating Logical Volumes
• Resizing Logical Volumes
• Working with Snapshots
• Replacing Failing Storage Devices
• Creating Swap Space
• Working with Encrypted Volumes

Connecting To The Network:

• Understanding NetworkManager
• Working with Services and Runlevels
• Configuring the Network with NetworkManager
• Working with system-config-network
• NetworkManager Configuration Files
• Network Service Scripts
• Networking from the Command Line
• Troubleshooting Networking
• Setting Up IPv6
• Configuring SSH
• Enabling the SSH Server
• Using the SSH Client
• Using PuTTY on Windows Machines
• Configuring Key-Based SSH Authentication
• Using Graphical Applications with SSH
• Using SSH Port Forwarding
• Configuring VNC Server Access Working with Users

Groups and Permissions:

• Managing Users and Groups
• Commands for User Management
• Managing Passwords
• Modifying and Deleting User Accounts
• Configuration Files
• Creating Groups
• Using Graphical Tools for User And Group Management
• Using External Authentication Sources
• The Authentication Process
• sssd
• nsswitch
• Pluggable Authentication Modules
• Managing Permissions
• The Role of Ownership

Basic Permissions:

• Read, Write and Execute
• Advanced Permissions
• Working with Access Control Lists
• Setting Default Permissions with umask
• Working with Attributes

Unit – III
Securing Server With iptables:

• Understanding Firewalls
• Setting Up A Firewall With system-config-firewall
• Allowing Services
• Trusted Interfaces
• Masquerading
• Configuration Files
• Setting Up A Firewall With iptables
• Tables
• Chains And Rules
• Composition Of Rule
• Configuration Example
• Advanced iptables Configuration
• Configuring Logging
• The Limit Module
• Configuring NAT

Setting Up Cryptographic Services:

• Introducing SSL Proof of Authenticity
• The Certificate Authority
• Managing Certificates with openssl
• Creating a Signing Request
• Working with GNU Privacy Guard
• Creating GPG Keys
• Key Transfer
• Managing GPG Keys
• Encrypting Files with GPG
• GPG Signing
• Signing RPM Files

Configuring Server for File Sharing:

• What is NFS?
• Advantages and Disadvantages of NFS
• Configuring NFS4
• Setting Up NFSv4
• Mounting an NFS Share
• Making NFS Mounts Persistent
• Configuring Automount
• Configuring Samba
• Setting Up a Samba File Server
• Samba Advanced Authentication Options
• Accessing Samba Shares
• Offering FTP Services

Unit – IV
Configuring DNS and DHCP:

• Introduction to DNS
• The DNS Hierarchy
• DNS Server Types
• The DNS Lookup Process
• DNS Zone Types
• Setting Up a DNS Server
• Setting Up a Cache-Only Name Server
• Setting Up a Primary Name Server
• Setting Up a Secondary Name Server
• Understanding DHCP
• Setting Up a DHCP Server

Setting Up a Mail Server:

• Using The Message Transfer Agent
• The Mail Delivery Agent
• The Mail User Agent
• Setting Up Postfix As An SMTP Server
• Working With Mutt
• Basic Configuration
• Internet Configuration
• Configuring Dovecot For POP And IMAP

Configuring Apache On Red Hat Enterprise Linux:

• Configuring The Apache Web Server
• Creating A Basic Website
• Understanding The Apache Configuration Files
• Apache Log Files
• Working With Virtual Hosts
• Securing The Web Server With TLS Certificates
• Configuring Authentication
• Setting Up Authentication With .htpasswd
• Configuring LDAP Authentication
• Setting Up MySQL

Unit – V
Introducing Bash Shell Scripting:

• Introduction
• Elements Of A Good Shell Script
• Executing The Script
• Working With Variables And Input
• Understanding Variables
• Variables
• Subshells And Sourcing
• Working With Script Arguments
• Asking For Input
• Using Command Substitution
• Substitution Operators
• Changing Variable Content With Pattern Matching
• Performing Calculations
• Using Control Structures
• Using if...then...else
• Using case
• Using while
• Using until
• Using for
• Configuring Booting With GRUB

High-Availability Clustering:

• High-Availability Clustering
• The Workings Of High Availability
• High-Availability Requirements
• Red Hat High-Availability Add-on Software
• Components
• Configuring Cluster-Based Services
• Setting Up Bonding
• Setting Up Shared Storage
• Installing The Red Hat High Availability Add-On
• Building The Initial State Of The Cluster
• Configuring Additional Cluster Properties
• Configuring A Quorum Disk
• Setting Up Fencing
• Creating Resources And Services
• Troubleshooting A Nonoperational Cluster
• Configuring GFS2 File Systems

Setting Up An Installation Server:

• Configuring A Network Server As An Installation Server
• Setting Up A TFTP And DHCP Server For PXE Boot
• Installing The TFTP Server
• Configuring DHCP For PXE Boot
• Creating The TFTP PXE Server Content
• Creating A Kickstart File
• Using A Kickstart File To Perform An Automated
• Installation
• Modifying The Kickstart File With
• system-config-kickstart
• Making Manual Modifications To The Kickstart File