I need a FTP SERVER program for using in ubuntu, Do you know any for free? ps: there will be no internet connection so, vsftp will not work. need a tool (like filezilla but filezilla has no server version for unix ubuntu) that has to be installation package to extract in it.
See if you can find one in this list:
List of FTP server software - Wikipedia, the free encyclopedia
There is no special kind of networkless FTP. FTP requires a network.
there is a network between two machines but no internet connections only two of them will talk each other
I see no reason vsftp wouldn't work, then. proftpd is also an option.
you could also use scp/sftp (part of the ssh service).
I also recommend vsftp it shall work on your network even without internet connection. To install it:
sudo apt-get install vsftpd
By default it will let anonymous connection, files shall be located at: /home/ftp
You can change configuration here: /etc/vsftpd.conf (after editing the file restart the daemon).
Proftpd and vsftpd good.
I also like pure-ftpd.