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Connecting to Tor
=================
Pick a way to connect OnionShare to Tor by clicking the "⚙" icon in the bottom right of the OnionShare window to get to its settings.
.. image:: _static/screenshots/settings.png
Use the ``tor`` bundled with OnionShare
---------------------------------------
This is the default, simplest and most reliable way that OnionShare connects to Tor.
For this reason, it's recommended for most users.
When you open OnionShare, it launches an already configured ``tor`` process in the background for OnionShare to use.
It doesn't interfere with other ``tor`` processes on your computer, so you can use the Tor Browser or the system ``tor`` on their own.
Attempt auto-configuration with Tor Browser
-------------------------------------------
If you have `downloaded the Tor Browser <https://www.torproject.org>`_ and don't want two ``tor`` processes running, you can use the ``tor`` process from the Tor Browser.
Keep in mind you need to keep Tor Browser open in the background while you're using OnionShare for this to work.
Using a system ``tor`` in Windows
---------------------------------
This is fairly advanced. You'll need to know how edit plaintext files and do stuff as an administrator.
Download the Tor Windows Expert Bundle `from <https://www.torproject.org/download/tor/>`_.
Extract the compressed file and copy the extracted folder to ``C:\Program Files (x86)\``
Rename the extracted folder with ``Data`` and ``Tor`` in it to ``tor-win32``.
Make up a control port password.
(Using 7 words in a sequence like ``comprised stumble rummage work avenging construct volatile`` is a good idea for a password.)
Now open a command prompt (``cmd``) as an administrator, and use ``tor.exe --hash-password`` to generate a hash of your password. For example::
cd "C:\Program Files (x86)\tor-win32\Tor"
tor.exe --hash-password "comprised stumble rummage work avenging construct volatile"
The hashed password output is displayed after some warnings (which you can ignore). In the case of the above example, it is ``16:00322E903D96DE986058BB9ABDA91E010D7A863768635AC38E213FDBEF``.
Now create a new text file at ``C:\Program Files (x86)\tor-win32\torrc`` and put your hashed password output in it, replacing the ``HashedControlPassword`` with the one you just generated::
ControlPort 9051
HashedControlPassword (the hash you generate from the password you picked above)
In your administrator command prompt, install ``tor`` as a service using the appropriate ``torrc`` file you just created (as described in `<https://2019.www.torproject.org/docs/faq.html.en#NTService>`_). Like this::
tor.exe --service install -options -f "C:\Program Files (x86)\tor-win32\torrc"
You are now running a system ``tor`` process in Windows!
Open OnionShare and click the "⚙" icon in it.
Under "How should OnionShare connect to Tor?" choose "Connect using control port", and set
"Control port" to ``127.0.0.1`` and
"Port" to ``9051``.
Under "Tor authentication settings" choose "Password" and set the password to the control port password you picked above.
Click the "Test Connection to Tor" button.
If all goes well, you should see "Connected to the Tor controller".
Using a system ``tor`` in macOS
-------------------------------
First, install `Homebrew <https://brew.sh/>`_ if you don't already have it, and then install Tor::
brew install tor
Now configure Tor to allow connections from OnionShare::
mkdir -p /usr/local/var/run/tor
chmod 700 /usr/local/var/run/tor
echo 'SOCKSPort 9050' >> /usr/local/etc/tor/torrc
echo 'ControlPort unix:"/usr/local/var/run/tor/control.socket"' >> /usr/local/etc/tor/torrc
And start the system Tor service::
brew services start tor
Open OnionShare and click the "⚙" icon in it.
Under "How should OnionShare connect to Tor?" choose "Connect using socket file", and
set the socket file to be ``/usr/local/var/run/tor/control.socket``.
Under "Tor authentication settings" choose "No authentication, or cookie authentication".
Click the "Test Connection to Tor" button.
If all goes well, you should see "Connected to the Tor controller".
Using a system ``tor`` in Linux
-------------------------------
First, install the ``tor`` package. If you're using Debian, Ubuntu, or a similar Linux distro, It is recommended to use the Tor Project's `official repository <https://support.torproject.org/apt/tor-deb-repo/>`_.
Next, add your user to the group that runs the ``tor`` process (in the case of Debian and Ubuntu, ``debian-tor``) and configure OnionShare to connect to your system ``tor``'s control socket file.
Add your user to the ``debian-tor`` group by running this command (replace ``username`` with your actual username)::
sudo usermod -a -G debian-tor username
Reboot your computer.
After it boots up again, open OnionShare and click the "⚙" icon in it.
Under "How should OnionShare connect to Tor?" choose "Connect using socket file".
Set the socket file to be ``/var/run/tor/control``.
Under "Tor authentication settings" choose "No authentication, or cookie authentication".
Click the "Test Connection to Tor" button.
If all goes well, you should see "Connected to the Tor controller".
Using Tor bridges
-----------------
If your access to the internet is censored, you can configure OnionShare to connect to the Tor network using `Tor bridges <https://2019.www.torproject.org/docs/bridges.html.en>`_. If OnionShare connects to Tor without one, you don't need to use a bridge.
To configure bridges, click the "⚙" icon in OnionShare.
You can use the built-in obfs4 pluggable transports, the built-in meek_lite (Azure) pluggable transports, or custom bridges, which you can obtain from Tor's `BridgeDB <https://bridges.torproject.org/>`_.
If you need to use a bridge, try the built-in obfs4 ones first.
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