redirect with exceptions

Unbound
1

Hello,

I'm trying to create rather simple (at least I thought so initially) solution.

Want to intercept some of the DNS queries in my homelab and return fake entries for them.

So basically I want to return let's say 10.10.10.10 for every subdomain of foo.com but for some hostnames/subdomains I'd like to return different IP, let's say 10.10.10.11.

So:

*.foo.com -> 10.10.10.10

a.foo.com -> 10.10.10.11

I started experimenting with redirect but seems it doesn't allow to set any exceptions. Is all or nothing.

Is there a way to configure unbound the way I want?

Thanks for any hints.

regards
Bartosz Fenski

2

Hi Bartosz,

Local zone selection relies on the most specific match of the domain names. So you can have exceptions in your basic rule for a certain zone.

That is you can have a redirect zone for 'foo.com' and another redirect zone for 'a.foo.com' like:

  local-zone: "foo.com." redirect
  local-data: "foo.com. A 10.10.10.10"
  local-zone: "a.foo.com." redirect
  local-data: "a.foo.com. A 10.10.10.11"

Every A query for 'a.foo.com' and anything under 'a.foo.com' will get the 11 address.

Every A query for 'foo.com' and anything under 'foo.com' (that is not part of 'a.foo.com') will get the 10 address.

Best regards,
-- Yorgos