1. Lab 1 introduction, debrief
Information Systems 337
Prof. Harry Plantinga
Lab 1 introduction, debrief

2. Lab 1: Linux, Apache We’ll use Linux for this course First lab
Set up your Linux environment
Learn some Linux commands
Configure apache
Publish a first Web page

4. Virtual Machines Each student gets a VM from dreamhost Access via ssh
E.g. job4.calvincs.com
aka vm-is cs.calvin.edu
aka
Access via ssh
Not in the cs.calvin.edu domain? Connect through cs-ssh.calvin.edu
Set up public/private key pair
Eventually, you’ll publish your site to a web host

5. Ubuntu Linux Basic commands: ssh job4@job4.calvincs.com
ls, cd, pwd, mkdir
mv, rm
chown

6. Ubuntu Linux In Ubuntu Linux how would I…
Log in to my computer remotely?
List the files in my home directory?
Create a new directory?
Edit a file, e.g. create a web page?
List the contents of a file?
Move, rename, or delete a file?
Make a file world readable?
Execute a command with root permissions?
Find the IP address of my machine?
Get help on a Linux command?
Install a software package?
Determine what processes are running?

7. Linux file permissions
Permissions for read, write, and ‘eXecute’
User, group, world permissions
chmod
chown

8. Problems… If you mis-configure a file, your system can stop running
If you forget what you did, you may have to start over from the beginning of the semester…
What to do?

9. git git is a source control system – git init git add * git commit
Make snapshots of your files
Keep old versions
Branches
Reconcile branches
git init
git add *
git commit

10. Apache What does apache2 do, exactly? Where can I get apache2?
In apache2, how would I
Start and stop the server?
Specify what files it will serve?
Specify the default character set?
Enable or disable modules?
View the access or error logs?

11. Lab 1 debrief Questions about the lab? Why abc123@abc123.calvincs.com?
What if your web page doesn’t appear?
How do you install an apache module?
Any gaps on your linux handout?
How to tell if your Web server is running?
How to print info about the network?