Script: Update Linode DNS Records with WAN IPs (Dynamic DNS)
Either of these scripts will grab both the IPv4 and IPv6 (if any) addresses assigned to any WAN I’m behind, and, using Linode’s DNS API, will update my DNS records with same and log changes/errors using logger. In effect, it’s a homemade Dynamic DNS updater. Linode’s developing a new API so that’s why two versions exist.
Download from Bitbucket
To use the script, you need:
A Linode API key (for version 3 of Linode’s DNS API) or Personal Access Token (for version 4 of Linode’s DNS API), the domain ID, and the resource (called record in v4) IDs of the DNS records you want to update.