If I specify a wildcard DNS entry, will it override any specific values?

Question

I have

cheese.mycompany.com - 1.1.1.1

I want to go

*.mycompany.com = 1.1.1.2

without effecting cheese? Will this work, just having two seprate DNS entries?

Answer 1

The wildcard does not override any specific values. It acts as a catch-all. If there is no otherwise specified record, the wildcard record gets used.

You can have both cheese.mycompany.com pointing at an ip address and a wildcard for everything else.

I do this on my site. I use both A records for specific IP addresses for subdomains, and a catch-all wildcard. They are completely compatible.