setup raspberry pi with spdns – secure point DNS

Posted on 14. February 2016 in low voltage experiments

Hi folks,
my ISP is changing my IP address once a day, but still i wanted to connect to my raspberry pi homeserver from the internet. After some experimentation time i found a nice solution to work with.

1.) Register and setup spdns
Register as a new user at spdns.de
Setup a new virtual hostname for example “myhost.spdns.eu”

2.) setup a little python script
I downloaded a script from the user “mmichaa” python_script
and altered the main function of the script

def main(argv):
	if len(argv) != 4:
		print ''
		print "tUSAGE: " + __file__ + ' <hostname> <user> <passwd>'
		print ''
		return None
	hostname = argv[1]
	user = argv[2]
	passwd = argv[3]

to

def main(argv):	
	hostname = 'myhost.spdns.eu'
	user = 'myusername'
	passwd = 'mypassword'

so you do not need to provide the username and password as command line parameters.

3.) setup a cron job to automatically start the script
alter the cron configuration by entering

sudo crontab -e

add a new line at the end of the document

@hourly python /home/pi/spdns-client.py

test the script

sudo /etc/init.d/cron restart