#DYN UPDATER NOT UPDATING CORRECT IP UPGRADE#

The value is in seconds, so this is an hour. The parts of interest here are the $TTL or time to live. Here’s a typical zone file ( RFC 1035 controls the format): zone file for In general, though, you will have a single file for each domain - zone in DNS speak - you control. I’m going to assume you already have Bind setup and you have a working knowledge of what DNS does.

All the infrastructure remains on the DNS server. I wanted a system where the only thing needed on the client side was ssh. The problem is, I have a lot of client computers and many are set up differently. Most of these depend on setting up a secret key to allow for DNS updates and some sort of script that calls nsupdate or having the DHCP server do it. There are many ways to set up dynamic DNS if you are willing to have a great deal of structure on both sides. This is a common setup, but if you have a different system you might have to adapt a bit. I’m going to show you how I do it with an accessible Linux server running Bind. However, if you have a single public accessible computer, for example a Web server or even a cloud instance, and you are running your own DNS server, you really don’t need one of those services.

OpenWRT supports many such services and there are many lists of common services. If your router vendor supplies one, that might be a good choice, until you change routers, of course.

#DYN UPDATER NOT UPDATING CORRECT IP UPGRADE#

That used to be great, but now it seems like many of them hound you to upgrade or constantly renew so you can see their ads. There are many ways to solve this problem and some of them are better than others.Ī lot of routers can report their IP address to a dynamic DNS server. Or maybe it is your laptop and it winds up in different locations with, again, different IP addresses. You want to access your computer remotely, but it is behind a router that randomly gets different IP addresses.

Dyn updater not updating correct ip