setup ftp server on ubuntu karmic

1. 1
   Install a program called vsftpd. In order to do this, open up a command line and type sudo apt-get install vsftpd. You will be required to type in the root password and after that, just follow the instructions vsftpd gives you in order to install it.
2. 2
   Change the configuration file. Get to the file browser and type /etc. Next scroll down and double click on a file called vsftpd.conf. Remember that lines that start with a '#' are commented out:  
   1. Disable anonymous access: Change the "anonymous_enable" setting to NO
   2. Change the "local_enable" setting to YES.
3. 3
   Restart the FTP server to enable your changes: in a shell window, type: sudo /etc/init.d/vsftpd restart
4. 4
   Place the files you want to serve in the FTP Home Directory (~ftp).

Source: http://www.wikihow.com/Set-up-an-FTP-Server-in-Ubuntu-Linux