Share across network to Windows users

I have a folder I want to share with a couple windows users on the network.

I am using ubuntu 10.4

When I right click a folder I go to "Sharing Options"

There are 3 check boxes. If I check the first 2 which are "share this folder" and "Allow others to create and delete files in this folder" I can now see this folder on the network from my pc.

I cannot access it though, it asks for a username and password (I never set one up so I don't even know what credentials it wants.)

I don't want to have to log in, I just want to be able to go right in.

So If I check the third box, which is "guest access" I can now access the folder from my pc. But so can everyone else on the network. I just want myself and a couple other pc users on the network to be able to access it.

I do not see anyplace where I can specify what users on the network have permission to access it? How do I do that?

update

When I entered my user name and password for the linux machine, it gave me this error message:

\LINUX-SERVER\saga_repo is not accessible. You might not have permission to use this network resource. Contact the administrator of this server to find out if you have access permissions.

Multiple connections to a server or shared resource by the same user, using more than one user name, are not allowed. Disconnect all previous connections to the server or shared resource and try again.

I noticed that when type in my username it defaults to @MY-DOMAIN so I also tried myuser@linux-server but still got the same message.

Also the domain administrator (who knows nothing about linux) told me that the linux machine is not a part of the domain (even though I can see it when I go to My Network Places from my windows machine). I don't know if that means anything.

I also tried created a new user on ubuntu to try to log in with and got the same message. I tried to log in with my user and the new user from a workers machine and I couldn't get in from there either but I just got an "access denied" dialog everytime on his machine.

Is there possibly another step I am missing?

The easiest way (in my opinion) to share files across a local network with Windows machines is to use a program I've written called NitroShare. All you need to do is install the application on each of the machines. Then you can simply drag-and-drop files.

Installing on Ubuntu

Simply open a terminal and run the following commands:

sudo apt-add-repository ppa:george-edison55/nitroshare
sudo apt-get update ; sudo apt-get install nitroshare

Installing on Windows

Simply download and run the installer below:

https://launchpad.net/nitroshare/0.2/0.2/+download/nitroshare_0.2_win32.exe

Transferring files

Once you have the application installed on each machine, you should see a small box on each desktop:

Simply drag a file on to the box to send it to another machine. That's it.

The username and password it asks for should be your username and password on the local machine. It's as simple as that.

For instance, if your username in Ubuntu is john and your password is iloveubuntu, then you should enter those two to access your files from any computer.

If you want others to be able to access a shared directory, just create a user for them on the local machine, and they should be able to access it using their own username and password too. You probably need to set the Allow others to create and delete files in this folder to let them edit the files, but this is not necessary for just sharing your files with them.