I would think one of dynamic DNS client utilities might do this... Check through the list here and see if any allow running an external command on detection ...
A computer public IP address is an IP address that is used to identify the system network. Sometimes, you might need to know the existing public IP address to fix connectivity issues. By the way, ...
This short tutorial walks you through the process of changing a CentOS ethernet interface from DHCP to static–but be prepared to type. We may earn from vendors via affiliate links or sponsorships.