I was facing an issue recently and it is like this. I run a Ubuntu Linux Virtual Machine on a Windows guest. Because of my specific requirements I need to connect to a specific AP (wifi router) from a Windows machine.
I was facing the issue while trying to connect to a newly installed Ubuntu 12.04 running on a Virtual box. I use FileZilla a lot to connect to my linux machine (Virtual machine running on a VirtualBox) for file transfers. My filezilla connection keeps on timing out without much of information.
This may be very simple but to keep things handy the below will install ftp service in you Ubutu Linux machine:
vbhadra@vbhadra-VirtualBox:~$ sudo apt-get install vsftpd Reading package lists... Done Building dependency tree Reading state information... Done The following NEW packages will be installed vsftpd 0 to upgrade, 1 to newly install, 0 to remove and 318 not to upgrade. Need to get 130 kB of archives. After this operation, 353 kB of additional disk space will be used. Get:1 http://gb.archive.ubuntu.com/ubuntu/ precise/main vsftpd i386 2.3.5-1ubuntu2 [130 kB] Fetched 130 kB in 0s (927 kB/s) Preconfiguring packages ... Selecting previously unselected package vsftpd. (Reading database ... 183924 files and directories currently installed.) Unpacking vsftpd (from .../vsftpd_2.3.5-1ubuntu2_i386.deb) ... Processing triggers for man-db ... Processing triggers for ureadahead ... Setting up vsftpd (2.3.5-1ubuntu2) ... vsftpd start/running, process 4107 vbhadra@vbhadra-VirtualBox:~$
This has been tested on a Ubutnu 12.04 running on a virtual box.