Nat.li

Start with an update (debian/ubuntu)

apt-get update

Make sure you have the following (debian/ubuntu):

C Compiler, Make and a Text Editor (I choose vim):

apt-get install make gcc vim

Now download & Install

cd /var
wget http://www.inet.no/dante/files/dante-1.3.2.tar.gz
tar xvfz dante-*
cd dante-*
./configure
make
make install

Copy the default configuration file over for easy config:

cd /var/dante-*/example
cp sockd.conf /etc/sockd.conf
vim /etc/sockd.conf

You’re probably going to want to see your adapter name(s) for the next step:

ifconfig

Now set (uncomment & change) the following:

logoutput: syslog

internal: 127.0.0.1 port = 1080
internal: venet0:0 port = 1080

external: 1.2.3.4
# or
external: eth0

Where 1.2.3.4 is your server’s external IP address.

To set-up without authentication:

method: username none

# Not using authentication, so unnecessary
#user.privileged: proxy

user.notprivileged: nobody

Finally, it’s time to configure authentication (acces control). It’s probably a bad idea to allow everyone access to your proxy server.

The first three directives control which IP ranges can speak to the server. The from: option is obviously the IP space the clients live in. The to: option is one of the IPs the proxy server is bound to that the given IP range can speak to.

client pass {
  from: 1.2.3.4/0 port 1-65535 to: 1.2.3.4/0
}

client block {
  from: 0.0.0.0/0 to: 0.0.0.0/0
  log: connect error
}

Where 1.2.3.4 is your client‘s external IP address.

These next four directives control who can speak to what.

block {
  from: 0.0.0.0/0 to: 127.0.0.0/8
  log: connect error
}

pass {
  from: 1.2.3.4/0 to: 1.2.3.4/0
  protocol: tcp udp
}

block {
  from: 0.0.0.0/0 to: 0.0.0.0/0
  log: connect error
}

Where 1.2.3.4 is your client‘s external IP address.

Now start Dante!

sockd -V (or the danted binary on Debian)
sockd -D

Now try to connect:

yourServerIP:1080

Can’t connect? Check the log file out!

vim /var/log/syslog

To stop the proxy server (I didn’t find a ‘normal’ way):

killall sockd

Source(s):
http://blog.edseek.com/~jasonb/articles/dante_tunnel.shtml

UPDATE:
If you’re feeling lazy, I made this bash to pretty much automate the whole process:

dante_install.sh

#!/bin/bash
apt-get -y --force-yes update
apt-get -y --force-yes install make gcc vim
cd /var
wget http://www.inet.no/dante/files/dante-1.3.2.tar.gz
tar xvfz dante-*
cd dante-*
./configure
make
make install
echo -e "logoutput: syslog\n\n internal: 127.0.0.1 port = 1080\ninternal: venet0:0 port = 1080\n\nexternal: venet0:0\n\nmethod: username none\nuser.notprivileged: nobody\n\nclient pass {\n  from: 1.2.3.4/0 port 1-65535 to: 1.2.3.4/0\n }\n\nclient block {\n  from: 0.0.0.0/0 to: 0.0.0.0/0\n  log: connect error\n }\n\nblock {\n  from: 0.0.0.0/0 to: 127.0.0.0/8\n  log: connect error\n}\n\npass {\n  from: 1.2.3.4/0 to: 1.2.3.4/0\n  protocol: tcp udp\n}\n\nblock {\n  from: 0.0.0.0/0 to: 0.0.0.0/0\n  log: connect error\n}" > /etc/sockd.conf
sockd -V
sockd -D

Remember to chmod u+x dante_install.sh prior to running it with ./dante_install.sh
Also don’t forget to vim /etc/sockd.conf afterwards to edit out the IP of your client.