Some updates to this doc, as it's impossible to edit it:

1. Bitcoin PPA is no longer supported on Debian (see #5 below)

2. Be sure to edit the control/start-* and stop-* files and change the user paths from coins to btdx.

3. Add the following into: /etc/monit/conf.d/status.conf
   set httpd port 2812 and
   use address localhost # only accept connection from localhost
   allow localhost # allow localhost to connect to the server and
   allow admin:monit # require user 'admin' with password 'monit'

4. To download the files, use lynx: apt-get install lynx

5. Replace /etc/apt/sources.list.d/bitcoin-bitcoin-jessie.list with:
   deb http://ppa.launchpad.net/bitcoin/bitcoin/ubuntu wily main
   deb http://archive.debian.org/debian/ squeeze main contrib non-free
   deb http://sg.mirrors.cloud.aliyuncs.com/debian oldstable main contrib non-free

6. do:
   apt-get install libboost1.55-all-dev libboost1.55-tools-dev libminiupnpc-dev libdb4.8-dev libdb4.8++-dev
   instead of the install in the doc.