Can other's upload files to my server?

[atambo]

Is there a way for me to create an ftp server or something where other members of my clan have to enter a username and password to upload maps and ect?

I am running my server off the latest desktop version of Ubuntu.

[Drocona]

yes you can just use an ftp server, add some accounts for your friends and let them upload the maps.
You will have to install the maps on the server tho

[k2chris1983]

use vsftpd