Windows

1, for access: use putty
2, for transfer files: use wiscp
Download these two gui softwares, install them and login to users.cs.umb.edu with your unix/linux account. You will have no problem.

Linux/Mac

All Linux/Mac systems come with scp and ssh, available once you open the terminal.
1, for access: type ssh unix/linuxAcount@users.cs.umb.edu and enter password
2, for transfer files:
scp myfile unix/linuxAcount@users.cs.umb.edu:targetpath

Note: scp cheat sheet or scp_help