Slave Records Explained

What is slave records?
Slave record's IP address cannot be updated individually. It can only be updated automatically to the same as its master.

Why use slave records?
Let's use an example to explain: You want to host 3 web sites at home, good.minidns.net, bad.minidns.net and ugly.minidns.net. Because the 3 sites are hosted on the same machine, they share the same IP address. What you have to do is:

1. Add a master host record good.minidns.net.
2. Add two slave host records, bad.minidns.net and ugly.minidns.net. Set them as slave of good.minidns.net.
3. Configure your favorite update program (eg. DynSite) to update the IP of good.minidns.net only.
4. When the IP of good.minidns.net is updated, the slaves are also updated to the same IP.

Conclusion
Slave records are great for hosting many virtual sites on one IP. It saves you a lot of configuration work.