enabling network logging, virtual box, putty, vnc

Hi can someone help me enabling logging for all network interactions on OpenSuse 11.1. Where does the output get written to?

I have:
Guest OS: OpenSuse11.1_x86_64bit
Emulator: VirtualBox 64bit version
Host OS: Windows server 2003 64bit

After applying port forwarding, on virtual box, 2222@LocalhostPC to 22@guestPC, i am still unable to connect to the guest using putty or using vnc. VNC says connection established but does not bring up a cmd/term window.

Thanks in advance
Tarunark