1. Make sure you are running Backtrack VM for this exercise.

2. Login as user root and password toor.

3. Create an account and assign passwords for:

i) is401-Bobbybob

ii) is501-Bobbybob

iii) for yourself-Ogbossman

Hint: You can do this by accessing the Start -> System -> Users and Groups -> +Add User.

4. Logoff from root account and login to your named account.

5. In a Konsole (Terminal) window, create a directory named labtest5 in the /tmp folder [Hint: Change to /tmp folder first -> cd /tmp.]

6. Record the permissions on the labtest5 directory and explain the permissions for each category assigned. [Use ls l command to view]

________________________________________________________________________________________________________________________________________________________________________________________________________________________

7. Change to directory labtest5. [Use cd labtest5]

8. Create a file named abc.

i) Record the default perchmodmissions for abc

_______________________________________________________________________________________________________________________________________________________________________________________________________________

ii) Apply permissions on abc so that

a. Owners (user) have read and write permissions.

b. Group has read permissions

c. Others have no access

d. Check and record the modified permission of abc

______________________________________________________________________________________________________________________________

9. Logout and then login as root.

10. Change to the labtest5 directory and answer the following questions:

a. Can root open (read) the file abc?___________________ Why?_______________________________________________________________________________________________________________________________

b. Can root modify, save changed to, the file abc? ______________ Why?_______________________________________________________________________________________________________________________________

11. Create a file named def in the labtest5 directory.

12. Assign the following permissions to def

a. Owners (user) have read and execute permissions.

b. Group has read, write and execute permissions

c. Others have read only permission

d. Check and record the modified permission of def

____________________________________________________________________________________________________________________________________

13. Logout of root account.

14. Login as is501.

15. Open a Konsole (Terminal) window and change to directory labtest5.

16. Were you able to access the file abc? ____________ Why?___________________________________________________________________________________________________________________________________________

17. Were you able to access the file def? _____________ Why?___________________________________________________________________________________________________________________________________________

18. Now, try to open and modify the file def. Were you able to modify the file def ? ____________

Why ? ________________________________________________________________________________________________________________________________________________