Transcript Information Systems Security Management

POS/420
Introduction to Unix
Philip Robbins – March 27, 2014 (Week 1)
University of Phoenix Kapolei Campus
Agenda: Week 1
• Introductions
• Review Syllabus
• Week 1
- History of Unix, Linux, and GNU
- UNIX / Linux Distributions
- Download & Install VM Player & Ubuntu Linux
- Run Ubuntu
- Learn some basic commands within Terminal
• Quiz #1
What is Unix
• Unix developed by Ken Thompson
• Bell Labs (AT&T) in 1969 and released in 1971.
• Operating System initially written in assembly then in C.
The GNU Project
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1983, Richard Stallman @ MIT
Freeware Collaboration project
To give computer users freedom and control
Develop and distribute software with the following rights:
Users are free to run the software
Share it (copy & distribute)
Modify it
The GNU Project
- http://www.gnu.org/licenses/gpl.html
The GNU Project
What is Linux
• Linux is an Operating System (OS) just like Windows
and MAC OS.
• Linux Kernel designed by Linus Torvalds
• Linux is open source and free (GNU 1992)
• Approximately 60% of servers use Linux.
What is Unix / Linux
• OS used on top 500 Supercomputers
Evolution of Unix
Tux
The Top 10 Linux Distributions (2013)
1. Ubuntu
2. Linux Mint
3. Mageia
4. Fedora
5. openSUSE
6. Debian
7. Arch Linux
8. PCLinuxOS
9. Zorin OS
10. CentOS
Ubuntu
Linux Mint
Mageia
Fedora
openSUSE
Debian
Arch Linux
PCLinuxOS
Zorin OS
CentOS
Backtrack 5r3
Advantages of Linux
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No constant rebooting
Start/stop services without interrupting others
Portable
Flexible
Downloadable Applications
Settings aren’t hidden in code or registries
Open Source
Distribution Freedom
Vulnerabilities
What is a shell?
What is a shell?
What is a shell?
What is a shell?
What is a shell?
What is a kernel?
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Central component to most Operating Systems
Interface to system hardware
In charge of access to computer resources
Implements multitasking for processes continuously
competing for system resources (enforcing isolation).
Let’s Install Linux!
• Work in Teams & help each other!
• Download Ubuntu 12.10
- http://www.ubuntu.com/download/desktop
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Ways to install:
.ISO file (Burn to DVD)
Live CD
Bootable USB
Dual Boot
Binaries
Virtual Machine (VM)
VPS
Install VM Player
• Download VMware Player
- http://www.dorkatron.com/docs/POS420/1%20%20SOFTWARE%20-%20VMware-player-5.0.1894247.exe
Run Ubuntu VM
• Download & Extract “VM.rar”
- http://www.dorkatron.com/docs/POS420/1%20%20SOFTWARE%20-%20VM.rar
- Download winrar
- Run “POS420VM.vmx”
Break
• Let’s take a break… RETURN @ 800PM
Run Ubuntu VM
• Login to Ubuntu 12.10
- Username: student
- Password: 3
Search for Terminal
Run Terminal (Use F11 for fullscreen)
man man
man ls
List directory contents
• List the directory contents for student account.
List directory contents
• List the directory contents for student account.
man pwd
Print Working Directory
• pwd for student account.
man passwd
Change your password
• Change password for student to “password”.
man sudo
Enable root (administrator)
• Change password for root to “password”.
man su
Log in as root
man shutdown
Restart system
Week 1 Linux VM Changes
• Enabled root account
• Password for “root” is now “password”
• Password for “student” is now “password”
Week 1 List of commands
man
ls
pwd
passwd
sudo
su
shutdown
– manual pages
– list directory contents
– print working directory
– change password
– execute command as superuser
– login as superuser
– shutdown
Quiz: Week 1
• 10-15 minutes