Linux System Administration

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Course Length:

5 Days

Course Description:

This course equips participants with the necessary tools to insure the well-being of a Linux system. Lab sessions include the installation, troubleshooting, and maintenance of a Linux system.

Who Should Attend:

This course is intended for those people who will be responsible for the operation and management of a Linux system.

Benefits of Attendance:

Upon completion of this course, students will be able to:

• Provide user guidance
• Carry out startup and shutdown procedures
• Use the administrator files and commands in the /etc directory
• Provide basic security for users
• Perform system administration tasks including adding and deleting users, adding devices, partitioning the disk, and other administrative functions
• Add or remove software
• Manage disk space and filesystems
• Check file system integrity
• Backup and restore all or parts of the system
• Configure local printers
• Monitor system performance, and establish and maintain network connectivity
• Use the Network File System (NFS)
• Use the Domain Name System (DNS)
• Install the LINUX system from distribution media

Prerequisites:

Students are expected to have completed the Introduction to Unix course or have equivalent experience.

Course Outline:

• Chapter 1: Introduction to Linux
  1. History of Unix
  2. Contemporary Products
  3. Advantages of Linux
  4. Components of the Linux Environment
  5. Important Parts of the Kernel
  6. Shells with Red Hat Linux
  7. Major Linux Services
  8. Organization of the Red Hat Filesystem
  9. Responsibilities of a System Administrator
  10. Getting Help
  11. Exercises
• Chapter 2: What You Should Already Know
  1. Beginning Linux Topics
  2. Shell Variables
  3. The PATH Variable
  4. Exporting Variables
  5. The Command Line
  6. The PS2 Variable
  7. Command History
  8. Command Substitution
  9. cut, paste
  10. expand, fmt, unexpand
  11. head, tail, nl, od
  12. wc, split
  13. pr, tac, tr
  14. xargs, join
  15. sed
  16. Directory Manipulation Commands
  17. File Manipulation Commands - cp
  18. File Manipulation Commands - mv
  19. File Manipulation Commands - rm, touch
  20. Using Filename Expansion Characters
  21. Special I/O Files
  22. Standard I/O Files
  23. Pipes
  24. Process Management
  25. ps, pstree
  26. top
  27. Signals
  28. Job Control
  29. nice, renice
  30. Regular Expressions
  31. Shells
  32. Shell Variables
  33. Shell Aliases
  34. Functions
  35. Startup Files
  36. Key Mappings
  37. Writing Shell Scripts
  38. Executing Your Script
  39. A Script’s Environment
  40. Exit Status
  41. Programming the Shell
• Chapter 3: System Startup and Shutdown
  1. Introduction to the Boot Process
  2. Stages of the Boot Process
  3. Linux System Runlevels
  4. Linux System Initialization Scripts (/etc/init.d)
  5. Red Hat Linux ntsysv and serviceconf Tools
  6. The chkconfig Command
  7. xinetd
  8. X Windows
  9. Shutting Down the System
  10. Exercises
• Chapter 4: System Security
  1. Important System Files… /etc/passwd
  2. Important System Files … /etc/shadow
  3. Important System Files… /etc/group
  4. Important System Files… /etc/gshadow
  5. The superuser (root) Account
  6. The su Command
  7. How to Use the su Command
  8. The whoami and id Commands
  9. The who Command
  10. File and Directory Permissions
  11. Types of Permissions
  12. Changing Permissions
  13. The Octal Mode
  14. Special File Permissions … suid and sgid
  15. Special File Permissions …Sticky Bit
  16. Administrating Ownership
  17. Exercises
• Chapter 5: Adding Users
  1. Manually Creating a User Account
  2. Password Management
  3. The chsh Command
  4. Additional Commands
  5. Adding a User
  6. Deleting a User
  7. Exercises
• Chapter 6: Software Package Administration
  1. The RedHat Package Manager (RPM)
  2. Standard Commands and Options
  3. Installing Packages
  4. Naming Conventions for RPM Packages
  5. Installing a Package
  6. Upgrading Packages
  7. Uninstalling Packages
  8. Querying Packages
  9. Verifying Packages
  10. Installing Packages with Package Manager
  11. Exercises
• Chapter 7: Linux System Processes
  1. Linux Process Components
  2. Linux Process Creation
  3. The ps (Process Status) Command
  4. The top (Top Jobs) Command
  5. The kill Command
  6. The at Command
  7. How to Execute the at Command
  8. Scheduling Tasks Using cron
  9. The crontab File Format
  10. Creating a cron Entry
  11. Exercises
• Chapter 8: Kernel Configuration
  1. Overview of the Linux Kernel
  2. Configuring the Linux Kernel
  3. Configuration Options
  4. Building and Installing the Kernel
  5. Building the Kernel
  6. Installing a New Kernel
  7. Configuring your Boot Manager
  8. Troubleshooting the New Kernel
  9. Troubleshooting and Recovery
  10. Exercises
• Chapter 9: Disk Management
  1. Disk Drive Geometry
  2. Introduction to Partitions
  3. Devices and Drivers
  4. Linux Standard Naming Conventions
  5. Partitioning a Disk
  6. Using fdisk
  7. The mke2fs Command
  8. The e2fsck Command
  9. Introduction to Mounting File Systems
  10. Mount Options
  11. Mounting a File System
  12. Exercises
• Chapter 10: Backup and Restore
  1. Backup Devices and Media
  2. Backup Strategies
  3. Example of a Backup Strategy
  4. The dump Command
  5. The restore Command
  6. The tar Command
  7. The cpio Command
  8. Exercises
• Chapter 11: Printing
  1. Overview of Red Hat Printing
  2. Printer Configuration
  3. Print Commands
  4. CUPS
  5. Exercises
• Chapter 12: Network Basics
  1. Network Terminology
  2. LAN Topology
  3. Network Transmission Media
  4. Network Access Methods
  5. Network Hardware
  6. Standards and Protocols
  7. Packets
  8. The ISO/OSI Model
  9. TCP/IP Network Model
  10. Network Configuration
  11. Exercises
• Chapter 13: Unix Network Applications
  1. The Extended Internet Services Daemon
  2. ftp
  3. vsFTP
  4. The telnet Command
  5. Simple telnet Session
  6. The r* Commands
  7. Trusted Hosts
  8. sendmail
  9. Filesystems
  10. Network File System
  11. /etc/exports
  12. NIS
  13. Exercises
• Chapter 14: The Network File System (NSF)
  1. Introduction to NFS
  2. The NFS Server
  3. TCP Wrappers
  4. The NFS Client
  5. Configuring the NFS Environment
  6. Exercises
• Chapter 15: Naming Services
  1. Naming Services Overview
  2. The Domain Name Service (DNS)
  3. Installing a DNS Server with Red Hat
  4. Configuring a DNS Server Using bind-config
  5. The NIS+ Environment
  6. The NIS Environment
  7. NIS Servers and Clients
  8. NIS Components
  9. Installing the Software
  10. Configuring a NIS Master Server
  11. Configuring an NIS Client
  12. Configuring an NIS Slave Server
  13. Name Service Switch Configuration File
  14. Exercises
• Chapter 16: Installation of Red Hat Linux
  1. Optimization of Usage
  2. Server Installation
  3. The Installation Process
  4. Installation Diskette(s)
  5. Part 1: Getting Started
  6. Installation