do-dydns
DigitalOcean DyDns (Dynamic DNS)
I created this as a quick and dirty means to tracking the ip addresses of relatives whom I provide computer support to. Signing up for Dynamic DNS providers isn't as simple/free as it used to be, so I figured if I already had a domain hosted on my DigitalOcean account, why not roll my own DyDns using the API. I stick this as a cron job on people's boxes, and now I have mom.example.com and bro1.example.com.
Running
The domain you choose must have it's nameservers already pointed at DigitalOcean, and the basic domain setup must be done as well. You don't have to create the record itself, that will be taken care of with this script.
The python script takes three command line arguments:
$ python do-dydns.py --help
usage: do-dydns.py [-h] -a API_KEY -d DOMAIN_NAME -r RECORD_NAME
DigitalOcean Dynamic DNS
optional arguments:
-h, --help show this help message and exit
-a API_KEY, --api_key API_KEY
DigitalOcean v2 api key
-d DOMAIN_NAME, --domain-name DOMAIN_NAME
Domain name managed by DigitalOcean (eg: example.com)
-r RECORD_NAME, --record-name RECORD_NAME
Short form DNS name, either subdomain or @ for the
domain itself (eg: @ or home)
Example
If you own example.com, and want example.com to point at your ip address:
python do-dydns.py -a 'DIGITAL_OCEAN_API_V2_KEY_HERE' -d 'example.com' -r '@'
If you would prefer to use the subdomain home.example.com:
python do-dydns.py -a 'DIGITAL_OCEAN_API_V2_KEY_HERE' -d 'example.com' -r 'home'