On Thu, Apr 11, 2019 at 11:51:44AM -0400, Greg Wooledge wrote: > On Fri, Apr 12, 2019 at 12:42:12AM +0900, Mark Fletcher wrote: > > > Why not use a dynamic DNS provider? > > > The problem is how I know that the IP > > address has changed and hence the DNS mapping needs updating. > > By doing it correctly. > > <https://mywiki.wooledge.org/IpAddress> has an example for Debian. > Specifically Debian 8 (jessie), but it should still work in newer > releases. > That page seems to be all about detecting the IP address; thanks, but that part was solved before I even opened this thread. Perhaps I phrased poorly earlier in the thread. The issue isn't how I tell what my IP address is, the issue is how the machine communicates the fact that it has changed to me even when I'm not logged into it. And this thread solved that.
You did say one very interesting thing that brought me up short on that page though; "I need to get my IP address so I can communicate it to my dynamic DNS provider" <paraphrasing>. I guess I need to look into that -- if that could be automated, then yes a dynamic DNS provider would be another, more automated, way to solve my underlying problem (to which I now have a solution I'm happy with) Thanks Mark