View source for Ubuntu/Dorky/Iodine

This page describes how to set up an [[Iodine]] server to tunnel IP traffic (SSH, SOCKS) over DNS.

This guide was helpful: https://calebmadrigal.com/dns-tunneling-with-iodine/

=Server Side=

==DNS Records==

Start by creating two DNS records, one NS record and one A record.

The NS record should have a host of "tunnel" and should point to "tunnelhost.example.com"

The A record should have a host of "tunnelhost" and should point to the IP of your iodine server.

==Installing Iodine==

This one is easy:

<pre>
sudo apt-get -y install iodine
</pre>

==Starting Iodine==

To start by hand, first check if you have the iodine daemon <code>iodined</code> binary in your path:

<pre>
which iodined
</pre>

Now run the iodine daemon:

<pre>
sudo iodined -c -f 10.200.0.1 -P YoUrSuPeRcOoLpAsSwOrD tunnel.example.com
</pre>

You should see something like this:

<pre>
$ sudo iodined -c -f 10.200.0.1 -P YoUrSuPeRcOoLpAsSwOrD tunnel.example.com
Opened dns0
Setting IP of dns0 to 10.200.0.1
Setting MTU of dns0 to 1130
Opened IPv4 UDP socket
Listening to dns for domain tunnel.example.com
</pre>

==Checking==

If you run <code>ifconfig</code> in another shell, you should see a <code>dns0</code> network device show up:

<pre>
dns0: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST>  mtu 1130
        inet 10.200.0.1  netmask 255.255.255.224  destination 10.200.0.1
        unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  txqueuelen 500  (UNSPEC)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
</pre>

You can also visit http://code.kryo.se/iodine/check-it/ and have the site check your tunnel subdomain setup and verify iodine is set up correctly.

=Client Side=

[[Category:DNS]]
[[Category:Dorky]]