CS209-01 Summer 1 2005 Homework Assignment 6 /Lab Session 7

enable xinetd

read man pages on xinetd and xinetd.conf

Enable and start the daemon: In YaST go to System and click on System Services . Click on xinetd and Enable, Finish. Check that the daemon is running. How did you do that? Find out what runlevel has changed and what script(s) has changed / were added . Describe the steps and what did you find in your report.

In YaST go to Network Services and click on Network Services (xinetd) Click on Enable , scroll down and select shell. Click on Edit and follow the instructions in order to install rsh server. Toggle status on the shell service and click on finish.

Give root@ivan   a superuser access to your computer

First, disable the firewall on your machine:
In YaST go to Security and Firewall and disable it.

Second, add this line

		ALL:ALL
	

into your /etc/hosts.deny and send HUP signal to xinetd. How did you do that? Explain it all ( man   5   hosts_access     may help here).

Lastly, make all necessary changes to /etc/hosts.allow, /root/.rhosts so that the root on computer ivan can rsh to your machine.
man   5   hosts.equiv     and man   in.rshd     (see the -h flag) may be helpfull here
Find a classmate and for a moment give each other remote root access to your machines. Test it by running

rsh his_her_machine cat /etc/shadow 

as a root from the other computer. Again, describe the process in your report. Did you encounter any difficulties? Howe did you solve them?

telneting into your machine

Do everything necessary in order to be able to telnet to your computer from the host 192.168.8.1 but not from any other computer.
Test it from ivan as well as from your own computer. Did you have to install any software? Modify some config files, start daemons? How? Describe the whole process in detail in your report.

Feedback

Estimate how much time did you spent on this assignment. Describe what was hard, easy, interesting, boring or confusing.

Submit PRINTED report and also send it by e-mail

attach the modified files to your report (cp them into cs domain first and attach them to your report)