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.
- (ifconfig) What is the hardware address (NIC) of your computer?
- (ifconfig) The IP address of your computer?
- (google) Is the ip address routable?
- (route) What gateways are on this network?
- (dig) What IP addresses are associated with the wartburg.edu domain?
- (dig) What is the IP address for www.python.org?
- (dig) Does Wartburg host its own web server (www.wartburg.edu)?
- (ping) About how long does it take to get a response
from another lab machine?
- (ping) How long does it take to get a response from python.org?
- (traceroute) How many "hops" does it take to get to another lab machine?
- (traceroute) How many "hops" does it take to get to python.org?
- (traceroute) Challenge: find a host that requires a large number of hops.
- (cat /etc/services) What is the standard port for telnet?
- (cat /etc/services) What is the standard port for finger?
- (nmap) What services are running on your computer?
- (nmap) What services are running on mcsp.wartburg.edu?
- (nmap) What services are running on Socrates?
- Of the services running on your computer, which provides remote login?
- 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".