Document preventing tor over tor

[woodser]

This issue requests documenting preventing tor over tor, similar to the documentation on whonix.org: https://www.whonix.org/wiki/Bisq#Tor_over_Tor_Prevention

[boldsuck]

PR from @XMRZombie 40_haveno.yml is merged: Whonix/onion-grater#13

I have to download a Whonix KVM over Christmas and test it out myself.
I suspect that you can also use the default Tor SocksPort:9050 on Whonix. With monerod it also works
Instead of monerod option:
--anonymous-inbound=mymonerodservice.onion:18083
Haveno uses:
--hiddenServiceAddress=myhavenoservice.onion --nodePort=9999
Since Haveno 1.0.10, the old Bisq instructions via ControlPort should no longer be necessary.

With externalTor patch I (Haveno Client) no longer have ~/.local/share/Haveno-reto/xmr_mainnet/tor folder and onion-grater Whitelisting filter for dangerous Tor control protocol commands is not needed.

EDIT:
After reading: https://www.whonix.org/wiki/Onion_Services#Setup_Overview

1. Configure a HiddenService on the Whonix-Gateway: sudoedit /usr/local/etc/torrc.d/50_user.conf

# Haveno incoming anonymity connections
HiddenServiceDir /var/lib/tor/haveno_service/
HiddenServicePort 9999 127.0.0.1:9999
HiddenServicePort 9999 [::1]:9999

2. Edit Whonix-Workstation firewall configuration to open port 9999

3. Start Haveno with --hiddenServiceAddress=Your_HiddenService_address.onion--nodePort=9999

That should be all you need to get Haveno running on Whonix.

something nicer:

--xmrNodes=trustedmonerod1.onion:18081,trustedmonerod2.onion:18081,trustedmonerod3.onion:18081
--useTorForXmr=on