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Update Tor docs

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Duke Leto
2020-11-14 15:56:33 -05:00
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@@ -1,18 +1,17 @@
*** Warning: Do not assume Tor support does the correct thing in Komodo; better Tor support is a future feature goal. *** *** Warning: Do not assume Tor support does the correct thing in Hush; better Tor support is a future feature goal. ***
TOR SUPPORT IN ZCASH # TOR SUPPORT IN HUSH
====================
It is possible to run Komodo as a Tor hidden service, and connect to such services. It is possible to run Hush as a Tor hidden service, and connect to such services.
The following directions assume you have a Tor proxy running on port 9050. Many distributions default to having a SOCKS proxy listening on port 9050, but others may not. In particular, the Tor Browser Bundle defaults to listening on port 9150. See [Tor Project FAQ:TBBSocksPort](https://www.torproject.org/docs/faq.html.en#TBBSocksPort) for how to properly The following directions assume you have a Tor proxy running on port 9050. Many distributions default to having a SOCKS proxy listening on port 9050, but others may not. In particular, the Tor Browser Bundle defaults to listening on port 9150. See [Tor Project FAQ:TBBSocksPort](https://www.torproject.org/docs/faq.html.en#TBBSocksPort) for how to properly
configure Tor. configure Tor.
1. Run Komodo behind a Tor proxy 1. Run Hush behind a Tor proxy
------------------------------- -------------------------------
The first step is running Komodo behind a Tor proxy. This will already make all The first step is running Hush behind a Tor proxy. This will already make all
outgoing connections be anonymized, but more is possible. outgoing connections be anonymized, but more is possible.
-proxy=ip:port Set the proxy server. If SOCKS5 is selected (default), this proxy -proxy=ip:port Set the proxy server. If SOCKS5 is selected (default), this proxy
@@ -33,27 +32,27 @@ outgoing connections be anonymized, but more is possible.
In a typical situation, this suffices to run behind a Tor proxy: In a typical situation, this suffices to run behind a Tor proxy:
./komodod -proxy=127.0.0.1:9050 ./hushd -proxy=127.0.0.1:9050
2. Run a Komodo hidden server 2. Run a Hush hidden server
---------------------------- ----------------------------
If you configure your Tor system accordingly, it is possible to make your node also If you configure your Tor system accordingly, it is possible to make your node also
reachable from the Tor network. Add these lines to your /etc/tor/torrc (or equivalent reachable from the Tor network. Add these lines to your /etc/tor/torrc (or equivalent
config file): config file):
HiddenServiceDir /var/lib/tor/zcash-service/ HiddenServiceDir /var/lib/tor/hush-service/
HiddenServicePort 7771 127.0.0.1:7771 HiddenServicePort 7771 127.0.0.1:7771
HiddenServicePort 17771 127.0.0.1:17771 HiddenServicePort 17771 127.0.0.1:17771
The directory can be different of course, but (both) port numbers should be equal to The directory can be different of course, but (both) port numbers should be equal to
your komodod's P2P listen port (7771 by default). your hushd's P2P listen port (7771 by default).
-externalip=X You can tell Komodo about its publicly reachable address using -externalip=X You can tell Hush about its publicly reachable address using
this option, and this can be a .onion address. Given the above this option, and this can be a .onion address. Given the above
configuration, you can find your onion address in configuration, you can find your onion address in
/var/lib/tor/zcash-service/hostname. Onion addresses are given /var/lib/tor/hush-service/hostname. Onion addresses are given
preference for your node to advertize itself with, for connections preference for your node to advertize itself with, for connections
coming from unroutable addresses (such as 127.0.0.1, where the coming from unroutable addresses (such as 127.0.0.1, where the
Tor proxy typically runs). Tor proxy typically runs).
@@ -70,25 +69,25 @@ your komodod's P2P listen port (7771 by default).
In a typical situation, where you're only reachable via Tor, this should suffice: In a typical situation, where you're only reachable via Tor, this should suffice:
./komodod -proxy=127.0.0.1:9050 -externalip=zctestseie6wxgio.onion -listen ./hushd -proxy=127.0.0.1:9050 -externalip=zctestseie6wxgio.onion -listen
(obviously, replace the Onion address with your own). It should be noted that you still (obviously, replace the Onion address with your own). It should be noted that you still
listen on all devices and another node could establish a clearnet connection, when knowing listen on all devices and another node could establish a clearnet connection, when knowing
your address. To mitigate this, additionally bind the address of your Tor proxy: your address. To mitigate this, additionally bind the address of your Tor proxy:
./zcashd ... -bind=127.0.0.1 ./hushd ... -bind=127.0.0.1
If you don't care too much about hiding your node, and want to be reachable on IPv4 If you don't care too much about hiding your node, and want to be reachable on IPv4
as well, use `discover` instead: as well, use `discover` instead:
./komodod ... -discover ./hushd ... -discover
and open port 7771 on your firewall (or use -upnp). and open port 7771 on your firewall (or use -upnp).
If you only want to use Tor to reach onion addresses, but not use it as a proxy If you only want to use Tor to reach onion addresses, but not use it as a proxy
for normal IPv4/IPv6 communication, use: for normal IPv4/IPv6 communication, use:
./komodod -onion=127.0.0.1:9050 -externalip=zctestseie6wxgio.onion -discover ./hushd -onion=127.0.0.1:9050 -externalip=zctestseie6wxgio.onion -discover
3. Automatically listen on Tor 3. Automatically listen on Tor
@@ -96,54 +95,54 @@ for normal IPv4/IPv6 communication, use:
Starting with Tor version 0.2.7.1 it is possible, through Tor's control socket Starting with Tor version 0.2.7.1 it is possible, through Tor's control socket
API, to create and destroy 'ephemeral' hidden services programmatically. API, to create and destroy 'ephemeral' hidden services programmatically.
Komodo has been updated to make use of this. Hush has been updated to make use of this.
This means that if Tor is running (and proper authentication has been configured), This means that if Tor is running (and proper authentication has been configured),
Komodo automatically creates a hidden service to listen on. Komodo will also use Tor Hush automatically creates a hidden service to listen on. Hush will also use Tor
automatically to connect to other .onion nodes if the control socket can be automatically to connect to other .onion nodes if the control socket can be
successfully opened. This will positively affect the number of available .onion successfully opened. This will positively affect the number of available .onion
nodes and their usage. nodes and their usage.
This new feature is enabled by default if Komodo is listening (`-listen`), and This new feature is enabled by default if Hush is listening (`-listen`), and
requires a Tor connection to work. It can be explicitly disabled with `-listenonion=0` requires a Tor connection to work. It can be explicitly disabled with `-listenonion=0`
and, if not disabled, configured using the `-torcontrol` and `-torpassword` settings. and, if not disabled, configured using the `-torcontrol` and `-torpassword` settings.
To show verbose debugging information, pass `-debug=tor`. To show verbose debugging information, pass `-debug=tor`.
Connecting to Tor's control socket API requires one of two authentication methods to be Connecting to Tor's control socket API requires one of two authentication methods to be
configured. For cookie authentication the user running komodod must have write access configured. For cookie authentication the user running hushd must have write access
to the `CookieAuthFile` specified in Tor configuration. In some cases this is to the `CookieAuthFile` specified in Tor configuration. In some cases this is
preconfigured and the creation of a hidden service is automatic. If permission problems preconfigured and the creation of a hidden service is automatic. If permission problems
are seen with `-debug=tor` they can be resolved by adding both the user running tor and are seen with `-debug=tor` they can be resolved by adding both the user running tor and
the user running komodod to the same group and setting permissions appropriately. On the user running hushd to the same group and setting permissions appropriately. On
Debian-based systems the user running komodod can be added to the debian-tor group, Debian-based systems the user running hushd can be added to the debian-tor group,
which has the appropriate permissions. An alternative authentication method is the use which has the appropriate permissions. An alternative authentication method is the use
of the `-torpassword` flag and a `hash-password` which can be enabled and specified in of the `-torpassword` flag and a `hash-password` which can be enabled and specified in
Tor configuration. Tor configuration.
4. Connect to a Komodo hidden server 4. Connect to a Hush hidden server
----------------------------------- -----------------------------------
To test your set-up, you might want to try connecting via Tor on a different computer to just a To test your set-up, you might want to try connecting via Tor on a different computer to just a
a single Komodo hidden server. Launch komodod as follows: a single Hush hidden server. Launch hushd as follows:
./komodod -onion=127.0.0.1:9050 -connect=zctestseie6wxgio.onion ./hushd -onion=127.0.0.1:9050 -connect=fuckzookoie6wxgio.onion
Now use komodo-cli to verify there is only a single peer connection. Now use komodo-cli to verify there is only a single peer connection.
komodo-cli getpeerinfo hush-cli getpeerinfo
[ [
{ {
"id" : 1, "id" : 1,
"addr" : "zctestseie6wxgio.onion:17770", "addr" : "zctestseie6wxgio.onion:17770",
... ...
"version" : 170002, "version" : 170010,
"subver" : "/MagicBean:1.0.0/", "subver" : "/GoldenSandtrout:3.6.0/",
... ...
} }
] ]
To connect to multiple Tor nodes, use: To connect to multiple Tor nodes, use:
./komodod -onion=127.0.0.1:9050 -addnode=zctestseie6wxgio.onion -dnsseed=0 -onlynet=onion ./hushd -onion=127.0.0.1:9050 -addnode=fuckzookoeie6wxgio.onion -dnsseed=0 -onlynet=onion