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Unix Online Training

Unix Online Training by Real time Experts:

Unix Online Training Course Content:

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

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