Introduction to the UNIX Operating System * Pima Community College * CIS137 -- 4.12 Internet

4.12 Internet

4.12 Internet

The Internet is now connected to most systems. It is a useful too for locating information and transferring files. Most usage of the Internet today involves the World Wide Web (WWW). This lab looks at accessing other services. Most of the can be done through a web interface, but for CIS137, use gort.

telnet is a remote terminal protocol and program to access other Internet connected computers running a telnet daemon. Try the command:
```
 
telnet sabio.arizona.edu
```
to access the UofA library system. Use terminal type "vt100" and respond with a "V"
What is the call number of the book: Living Within Limits?
Try out the finger command. This sends a short message to a system on the network to see if a user is logged on, and how active. If no user name is given it may show you who is currently on the system. Some systems disable the finger command. It is considered a security problem by many system administrators.
Try the following:
```
  
finger ltaber@lt.tucson.az.us 
```
and
```
  
finger quake@gldfs.cr.usgs.gov
```
Write down only the last "large" ( >5 ) earthquake's time, latitude, longitude and location.
File Transfer Protocol, (ftp) is used to transfer files from one system to another. There are many (>10,000) sites that you can ftp to as an anonymous user. I would like you to ftp a text file and print it.
These sites and files are suggestions. Any ASCII text file of reasonable length will do. (In other words -- keep the file less than one page)
When prompted for a username use "ftp". For the password use your e-mail address. (username@gort.cscwc.pima.edu)
```
 
ftp sunsite.unc.edu 
/pub/Linux/README 

ftp oak.oakland.edu 
/pub/simtelnet/msdos/x_10/00_index.txt 


ftp boombox.micro.umn.edu
/pub/pc/packet-drivers/notes/read.me
```
Login as anonymous. Then for your password enter your e-mail address. (username@gort.cscwc.pima.edu) Once you are in, many UNIX commands work: cd, ls -l, but not cat. You also have the command ascii, for use prior to getting ASCII files, and the command binary for use prior to transferring binary files. You may also want to try the commands help, get, mget, prompt, and quit. Remember that this gets the files to gort, NOT to your home PC.
Print a copy of your short file to turn in.

Label your output with:

Your-Name
Lab 4.12: Internet
TABER CIS137
the call number of Living within Limits 
the earthquake information

Please turn your lab in to Pima Community College employee in room A-115 ofthe Santa Rita Building. Ask them to place it in the lab folder in Louis Taber's mailbox.

Instructor: ltaber@pima.edu ** My new Home at GeoApps in Tucson ** The Pima College Site

4.12 Internet