locking a usage policy file/ftp file permissions
We have created an FTP site for a client. This idea is that their clients can all FTP files which our client can then read and make use of. Everyone logs in using the same username/password. This works fine except we wish to have a usage policy document in the folder which is not writeable.
We have set the permissions on this file (a simple .txt file) to 444 and have made it sticky which we thought should mean only the owner can write it, the owner has been changed to root and yet we can still delete the file when logged in as the user? We also changed the ownership of the folder it is contained within to root incase that might have been the problem but we could still delete when logged in as the user.
Through an FTP package (WSFTP) (logged in as user) the permissions show as 444 but it lets us delete.
Does anyone know how we could lock this file down? It seems like it should be a simple thing to do but whatever we try does not work!
Any help would be greatly appreciated.