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LAB: Web 2.0 Services

Meeting Nine (Lab)

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Lesson:

This will be the 4th lab session to be held at the Computing Lab at level B1 of N4.

Objective:

To explore the various Web2.0 services being made available. You will be able to do this from any system and will be something that should be trailblazers for the near future.

1. Drawing Tool - www.gliffy.com

1. Go to http://www.gliffy.com and sign up for an account
2. On the Gliffy site, create the following:
1. From the Symbols tab on the left, choose "Network"
2. Draw a corporate network diagram that shows the following:
1. 6 workstations
2. 1 firewall
3. 1 printer
4. 3 servers, labelled Email, File, Web
5. 1 router connecting to the "cloud" - what label would you put for the cloud?
6. Save your work frequently - give a name for your document.
7. When you are done with the above, EXPORT the file as a PNG file.
3. Can you describe how this tool differs from dia?

2. Spreadsheets - spreadsheets.google.com

1. Go to http://spreadsheets.google.com and if you do not already have a gmail.com account, create one.
2. Download the sample spreadsheet
3. Load that spreadsheet into the spreadsheets.google.com
4. Do some cosmetic changes to the data by bolding the column labelled "Area"
5. Save the spreadsheet.
6. How would you extract the spreadsheet that is saved on spreadsheets.google.com as a csv file?
7. What is a csv file?
8. Using the web is all about collaboration. Can you figure out a way to share your spreadsheet with your friends?

3. From last week's lab, make a bootable USB device. If you do not have a USB thumb drive, you might want to borrow one from your classmates for this section of the lab.

Boot Slax from a USB flashdrive
If you want to be able to boot Slax without the disc and with a USB flashdrive, you start by booting Slax with the USB drive plugged in. When you get to the part that says root@slax then type this:
 
cd /boot
 
"cd" command changes the directory that commands can be taken from. Next, type:
 
./create_bootdisk.sh . /dev/sda1 /dev/sda SLAX
 
The /dev/sda1 tells Slax where the first partition on your USB drive and /dev/sda is the Master Boot Record of the drive. The period after create_bootdisk.sh command tells SLAX to copy all files from the current directory to USB drive; "." Means the current directory now, you changed it to /boot in the previous command
 
This should make your USB drive able to boot Slax. Now, to boot, you need to set the BIOS to boot from USB.

It is taken from: http://www.geocities.com/slaxfansite/#howto

4. Working with PGP/GPG

1. This section assumes that the tool, GNU Privacy Assistant (gpa), is installed in the lab machines.
2. If it is installed, started a terminal, and type in gpa and import your PGP/GPG keys that were created last week.
3. Import your friend's public key from a key server
4. Create a simple text file using gedit or oo.o and save it. After saving it, use gpa to sign the document and email it to your friend in the lab.
5. when you receive a file from your friend, open up the file using gpa which should verify that the file came from the person it claims to be from.
6. Note: When you finish this lab, please backup your public and private keys so that you can use it on a regular basis.

Resources:

(none)

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