Centos research

Question 1
You are a Linux Systems Admin for a lab of Centos machines. You decide to use NFS v3 to allow Lab users to copy Virtual Machine images from a Central Centos Server to their local disks so that they can run VMs using VMware Workstation for Linux. Users do not need write access to the files. Explain four options you would use in the NFS Exports file on the Server to achieve this in the most secure manner possible
Question 2
As an administrator in a lab of Centos machines running VMware Workstation for Linux, you decide to give each user their own filestore location on a central server, so that they can save the VM images to the server after they have been modified.
User Peter says that when he logs on to Centos PC1 in the Lab, he gets access to his own files. However, when he logs on to Centos PC2, he gets access to user Paul’s files.
Describe what is most likely to be the problem?
Describe how you should fix it
Question 3
As an administrator of the Centos lab with a central NFS Server, you want to make some of the files on the Central Centos Server available to users on Windows 7 desktop machines. What software package would you need to install on the Central Centos Server to achieve this?

Question 4
In the configuration file for Samba on a Centos machine, you type the following:
[homes]
comment = Home Directories
browseable = yes
valid users = %S
writable = yes
Explain what effect each of the lines after [homes] has on the file sharing.

Question 5
The following line is taken from /etc/fstab on a Centos Client
buzzy.shu.ac.uk:/vmstore /mnt/vmstore nfs defaults 0 0
Explain what the following components of this line in the file mean:
buzzy.shu.ac.uk:/vmstore
/mnt/vmstore
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