From CyberWurx Customer Wiki

For our examples, we are using Ubuntu 9.10 with FileZilla installed.

Logging in

Your Server Details screen will have a subsection called FTP Details. Here, you will find the FTP IP, user, and pass for your game server. We will use this information to log in and modify game files.

Connecting using FileZilla

Above is the quick connect bar. Use this to connect to your server. Fill out the following information:

Host: IP Address from the FTP Details box.
Username: User from the FTP Details box.
Password: Password from the FTP Details box.
Port: leave this blank.

After you get the information filled out.