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Old 11-17-2010, 11:35 AM   #1
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Arrow Beginners Unix Assignment- Will PayPal $$

Delete please

Last edited by stronium; 11-17-2010 at 01:49 PM.
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Old 11-17-2010, 11:45 AM   #2
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Originally Posted by stronium View Post
Who can help with the following program?

Assignment : Secure Server-Client Applications
You are asked to implement an authentication server that authorizes visitors to login with a valid user ID and password. The server has to be implemented with POSIX threads.

The functionality of the client is that it connects to a server on a specified port number, reads user command line input and sends it to the server. It then waits for the server to reply and writes the reply as text on the screen. There are two types of commands. One is a request to read the list of files on the server, and display the result on client’s screen. The other is a request to read the contents of the assigned file that saved on server, and then displays the result on client’s screen.

The server simply waits for connections, refuses the connection request without valid user ID and password. If the user has passed the authentication process, the server reads input and sends proper responding back to the client in a cyclic fashion until the client closes the connections.

1. Create at least two non-empty text file called doc1.txt and doc2.txt on the server.
2. Create two users, user 1 ID: admin, password: admin; user 2 ID: user, password: user.
3. After log in with correct user ID and password, both of the users can display the list of files on server. User admin can read both of the files, while user can read doc1.txt only.
4. A visitor without correct user ID and Password cannot read the list of files on the server.
Here's a radical idea: DO YOUR OWN HOMEWORK, and don't pay people to do it for you. If you want to remain ignorant, then don't bother going to school in the first place.
3 members found this post helpful.
Old 11-17-2010, 01:08 PM   #3
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