Hosting a (private) (obfuscated) bridge or (exit) relay
You can still volunteer to Tor and host a bridge, private bridge, obfuscated bridge, private obfuscated bridge, middle node or exit relay when you are using Whonix. Either inside the Whonix-Gateway or directly on the host.
Outside the Whonix-Gateway
KVM For KVM, follow the NAT port forwarding instructions for Whonix-Gateway. 
Inside the Whonix-Gateway
This chapter hasn't been tested for a long time. Get in contact if you are interested in this configuration.
Simply follow all the usual instructions given on torproject.org inside the Whonix-Gateway just as you would, if Tor wouldn't run inside a virtual machine. The only additional thing to do is to set up a port forwarding from the host to the virtual machine. That is simple. It is a VirtualBox feature. You can also do this with the VirtualBox graphical user interface. Go to Whonix-Gateway -> Settings -> Network Interface -> Port Forwarding.
What's left are the firewall rules. On the Whonix-Gateway look at . Read the introduction comment (which is about Whonix flexible modular configuration files) and Tor Relay Settings.
Modify Whonix User Firewall Settings
Paste the following content. Adjust if necessary.
## Allow incoming DIRPORT connections for an optional Tor relay. GATEWAY_ALLOW_INCOMING_DIR_PORT=1 ## Allow incoming ORPORT connections for an optional Tor relay. GATEWAY_ALLOW_INCOMING_OR_PORT=1 ## DIRPORT incoming port. DIR_PORT=80 ## ORPORT incoming port. OR_PORT=443
Reload Whonix-Gateway Firewall.
Other Easy Options
As a Firefox or Chrome browser / Chromium user, install an add-on to create a "flash" proxy bridge. "Flash" as in flashing proxy, not as in Adobe Flash. This has nothing to do with Adobe Flash.
For Chrome browser / Chromium, there is cupcake. Simply click to install the add-on and you're done.
For Firefox browser, there is Tor Flashproxy Badge. Simply click to install the add-on and you're done.
This is a wiki. Want to improve this page? Help is welcome and volunteer contributions are happily considered! See Conditions for Contributions to Whonix, then Edit! IP addresses are scrubbed, but editing over Tor is recommended. Edits are held for moderation.