cping

Tiny Go program that updates a CloudFlare DNS record with the local host's outward facing IP address. Useful for a dynamic DNS type setup.

Install with:

go get -u github.com/brandur/cping
cp $GOPATH/bin/cping /usr/local/bin/

Create ~/.cping with something like:

[cloudflare]
email = <email>
name = site.example.com
token = <API secret token>
zone = example.com

Then run from the command line:

$ cping

Install in your Crontab with something like:

*/5 * * * * /usr/local/bin/cping -v 2>&1 | tee -a ~/.cping.log

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