Unix/Linux Training : UNIX SYSTEM ADMINISTRATION

UNIX SYSTEM ADMINISTRATION

Unix Training Overview

Learn and practice essential administration tasks. Generic system administration concepts are covered and related to specific vendors' systems

Unix Training Audience

UNIX administrators and anyone involved with the UNIX System V, Release 4 operating system.

Unix Training Prerequisites

Fundamentals of UNIX, and some system administration experience recommended.

Unix Training Course duration

4 Days

Unix Training Course outline

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 Filesystems

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 and netstat Commands

The LP Print Service

Printing Overview

The lp, lpstat, and cancel Commands

Adding a Printer

The lpadmin Command

The accept and reject Commands

The enable and disable Commands

Adding a Networked Printer

Other Administrative Commands

Network Utilities

Network Services

telnet - Terminal Emulator

ftp - File Transfer

rcp - Remote Copy

rlogin - Remote Login

rsh - Remote Commands

Kernel Reconfiguration

Overview of Reconfiguration

Kernel Parameters

Steps to Reconfigure a Kernel

Specific Steps for SVR4

Overview of NIS

What is NIS?

Why Use NIS?

NIS Design and Implementation

NIS Maps

Configuring NIS