Everyman IT

Note: We Demonstrate Linux using Ubuntu Server 10.04

Info

• Level: Intermediate
• Presenter: Eli the Computer Guy
• Date Created: September, 16 2010
• Length of Class: 37 Minutes

Tracks

• Linux

Prerequisites

• Introduction to Linux
• Installing Linux
• Basic Linux Tasks
• VIM for File Editing
• Navigation in Linux

Purpose of Class

• This class teaches students how to manage users, groups and permissions in a Linux enviornment.

Topics Covered

• Adding and Deleting Users
• Editing the passwd File Which Contains User Configurations
• Changing User Passwords
• Adding and Deleting Groups
• Adding and Deleting Users from Groups
• Editing the group Configuration File
• Understanding Permission Numbering System
• Changing User and Group Ownership for Files and Folders

Class Notes

1. Users
1. Add User = sudo adduser username
2. Change User password = sudo passwd username
3. Delete User = sudo userdel username
4. Edit Users Configuration File = sudo vim /etc/passwd (shows usernames, names of users, home directories)
2. Groups
1. Sudo groupadd groupname
2. Sudo groupdel groupname
3. Sudo vim /etc/group (shows groups and users)
3. Permissions
1. Numbers = owner/group/everyone else
2. 4 = read, 2 = write, 1 = execute
3. To Chanege Permissions of a File or Folder = sudo chmod 777 file/folder (-R for recursive)
4. Changing Ownership
1. To Change User Ownership = sudo chown -R username file/folder
2. To Change Group Ownership =sudo chgrp –R groupname file/folder
3. -R for Recursive for Folders

Resources