CS 280 01/Zelle May 2018

Stupid Net Tricks

For these activities, you will need to log in on an LCL machine and open up a "terminal" window where you can type some commands. You can get more information about a command by typing "man <command>." Use "q" to quit the help display. Type the answers to the questions in a simple text file so that you can hand it in with your portfolio on Monday.

  1. (ifconfig) What is the hardware address (NIC) of your computer?
  2. (ifconfig) The IP address of your computer?
  3. (google) Is the ip address routable?
  4. (route) What gateways are on this network?
  5. (dig) What IP addresses are associated with the wartburg.edu domain?
  6. (dig) What is the IP address for www.python.org?
  7. (dig) Does Wartburg host its own web server (www.wartburg.edu)?
  8. (ping) About how long does it take to get a response from another lab machine?
  9. (ping) How long does it take to get a response from python.org?
  10. (traceroute) How many "hops" does it take to get to another lab machine?
  11. (traceroute) How many "hops" does it take to get to python.org?
  12. (traceroute) Challenge: find a host that requires a large number of hops.
  13. (cat /etc/services) What is the standard port for telnet?
  14. (cat /etc/services) What is the standard port for finger?
  15. (nmap) What services are running on your computer?
  16. (nmap) What services are running on mcsp.wartburg.edu?
  17. (nmap) What services are running on Socrates?
  18. Of the services running on your computer, which provides remote login?
  19. Test out your answer to the last question by logging into another machine in the lab from your current terminal window. You can exit by typing "exit".