CS 493, Fall 2003


Assignment #5: 10 points

Due Date: Thursday, 11/13/03.


(6)  1.	The following questions refer to the Linux Mandrake 9.1 logs in 
	the file: ~cs493/Linuxlog.txt.	

	(a) Where were you and what were you doing at the time the log
	    files begin?  
	(b) What is the name of the host that produced the messages in the
	    system log?
	(c) At what time does the hourly cron job run?
	(d) What does this command do: 'kill -SIGHUP 1265'?
	(e) How can you tell from the logs if the command in (d) succeeded? 
	(f) From what remote host did user 'roth' connect using ssh?

(3)  2.	How would you configure the tcpd host access files to allow
	ssh access to targets1-3 only and ftp access to targets4-6
	only?  Show log output that confirms that your access controls
	are working as desired.**

(1)  3.	How can netcat (nc) be used to test host access controls on Linux
	services such as ssh and ftp?  Please demonstrate.**  


      **For full credit, turn in commented program listings and the
        exact output of the computer runs for this problem.