UNIX System Administration

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Description:
This four-day course introduces Linux™ and UNIX users to the tasks needed to administer their own system. The course begins with administering user accounts and groups, then moves into file, file system, and disk management. Various archiving commands are shown along with backup strategies. Students will learn about process and job scheduling as well as startup and shutdown procedures. The course finishes with security, system tuning, and networking topics. Generic system administration concepts are covered and related to specific vendors’ systems
Prerequisites:
Fundamentals of UNIX, and some system administration experience recommended.
Course Introduction:
Course Objectives
Course Overview
Using the Workbook
Suggested References
Overview of System Administration:
System Administrator Responsibilities
A Brief History of UNIX
Evolving Standards
Navigating the Documentation
User Administration:
What is a "user" in UNIX?
The /etc/passwd File
Groups
The /etc/group File
Passwords
Adding Users
Deleting Users
Modifying User Attributes
The Login Process
/etc/profile and .profile
Communicating with Users: /etc/motd
Communicating with Users: The wall Command
File System Basics:
The Hierarchy
Files
Directories
Device Files
Character and Block Devices
The/dev Directory
Links
Symbolic Links
A File System Tour
The df Command
The du Command
The find Command
Advanced File System Concepts:
The Physical File System
The Inode File
File Storage in Disk Blocks
The Superblock
The Free List
Slices and File Systems
File System Types
Disk Management:
Making a File System
The mkfs Command
Sharing File Systems
The mount Command
The fstab File
The fsck Command
The lost+found Directory
The prtvtoc Command
Backups :
Backup Strategies
Backup Tools
The tar Command
The cpio Command
The dump Command
Network Backup Strategies
UNIX Processes:
Overview of Processes
Process Space
Process Table
The fork/exec Mechanism
The ps Command
Background Processes
The kill Command
Scheduling Jobs
The cron Daemon
The at Command
The crontab Command
Format of cron Files
Access to Scheduling Facilities
System Startup and Shutdown:
Run States
The init Daemon
/etc/inittab
The inittab Actions
The init Command
The rc Scripts
Single-User Mode
The shutdown Command
UNIX System Security:
Security Overview
Physical Security
Account Security
SUID and SGID Settings
File and Directory Permissions
Software Security
Performance Monitoring and Tuning:
Performance Issues
Methods of Improving Performance
Swapping and Paging
The sar Utility
Using sar
The truss Command
IP Addressing:
Basic Network Needs
Ethernet Addresses
IP Addresses
DNS vs /etc/hosts to Resolve IP
Addresses
Network Addresses
Network Classes
Broadcast Addresses
Subnet Masks
. Configuring TCP/IP:
The /etc/hosts File
The ifconfig Command
The /etc/services File
The inetd Daemon
The /etc/inetd.conf File
Simple TCP/IP Troubleshooting: The ping Command
Simple TCP/IP Troubleshooting: The nestat Command
The LP Print Service:
Printing Overview
The lp Command
The lpstat Command
The cancel Command
Adding a Printer
The lpadmin Command
The accept and reject Commands
The enable and disable Commands
Adding a Networked Printer
Other Administrative Commands