How to password protect shared folder on network?

[draca443]

In explorer I share a folder by going to properties->sharing, and I check "share this folder on the network" and "allow network users to change my files".

Then from a linux (ubuntu) system, I am able to access that share without providing a login/password. How do I enforce security on that?

This is Windows XP SP2, I login with a username/password and it's a member of the workgroup "WORKGROUP".

 

[guitarzan]

You will need to disable "simple file sharing" by going to Control Panel > Folder Options > "View" tab, and un-checking "Use simple file sharing".

This gives you access to the Access Control List, where you can define rights by user accounts. Note that XP Home does not have this option, and the only way to see the Access Control List is by booting into Safe Mode.