CNT5605 - 2016 Summer
Friday, June 24, Monday, June 27, at the beginning of class.
You have received a new batch of distinguished users; their basic information
is located in newusers.tar. Inside of the tar file, there is a file
called "newusers.txt" which contains a colon-separated entry for each user: the
username, the uid, the GECOS information, and the user's preferred shell. Also in
the tar file you will find a public key for each of these users in the subdirectory
Please add a test user to the newusers.txt with
a public key for whom you also have the corresponding private key (i.e., use "ssh-keygen" to create
a new key pair.)
Please add these users to your Debian machine as
local users (you might want to verify that no name clashes occur, though,
before you proceed!) You must write a program to do this addition; do not add these users by hand.
Your program should create home directories on your Debian box with the usual
files from /etc/skel, but put the home directories in /home/users/USERNAME/, not just /home/USERNAME.
Each user should have his own group, where the group id matches the user id.
Don't assign passwords to these accounts; instead, set it up so that
the users can login using the public key provided in the tar file.
Also, create a /scratch/USERNAME/ directory for each user, and make sure that it is owned by the correct
user and has the correct group number.
Finally, after you have installed these users with your program, verify
that you can ssh into the test user's account, and test that all permissions and directories are
set up correctly for that user.
My advice for the program is to use a scripting language; most people find using /bin/bash adequate, though
writing this program in Python or Perl (or Lua, or C, or Gauche, or Racket, or Clojure, or AWK, or ...) is more pleasant.
hardest language — by far — would be assembly language, if you are looking for a challenge.)
A journal is due for this assignment. Make sure that you document in
your journal all of the steps that you went through, following the guidelines
on the class home page.
Please turn in a printed copy of this assignment at the beginning of class
Friday, June 24 Monday, June 27. You must include a copy of your script in the write-up.