Hi,

I finally got control of my domain name. I control the primary DNS server which pushes the updates to the other DNS servers.

I still have machines that have dynamic IP addresses. What is the best solution to update A records in BIND9 dynamically?

Presently I thought of using mySQL with a custom PHP script to regenerate the zone file and restart bind9, I was hoping there was a better way.

Thoughts?

David

DHCP and BIND are all you need for dynamic DNS. See this example:

http://www.mattfoster.clara.co.uk/ddns.htm

Thanks, I have actually used that setup before. What I was looking for was dynamic IP addresses out there on the net. I would like to have a subdomain for each of my families computers. For example my dad would be dad.mydomain.tlc etc...

Sorry I wasn't clear on the first message.

David

There are a few packages that do this, but they are basically the same as you are suggesting. Search Freshmeat and Sourceforge.

Some thoughts if you are planning to implement your own:

- Unless you plan to manage many dynamic IPs (i.e., establishing a public dynamic IP service), the database is unneccessary; a few flat files are easier and faster.

- Rather than restarting bind, consider using the rndc command - rndc reload zone; rndc retransfer zone.

- Since you will be performing the update over the public net, consider encrypting the requests using exchanged gpg keys. This also authenticates the source better than userid/passwords and allows for an auto-update script while remaining secure (not storing/transmitting passwords).

By keeping it simple, you can probably implement this faster and more securely for your specific application than any off the shelf package.