Creating Wildcard Records in DNS Forwarder/Resolver¶
A wildcard DNS record resolves
<anything>.example.com to a single IP
address, which can be useful in certain cases.
DNS Resolver (Unbound)¶
To create a wildcard entry the DNS Resolver (Unbound), use the following directives in the custom options box:
server: local-zone: "example.com" redirect local-data: "example.com 86400 IN A 192.168.1.54"
That makes any host under
example.com resolve to
mystuff.example.com, and so on.
DNS Forwarder (dnsmasq)¶
To create a wildcard entry in the DNS Forwarder, use the following directives in the advanced options:
If a specific host override is set for example:
specific.example.com 192.168.1.100 knownhost.example.com 192.168.1.101
Then those would be returned when doing a query for those hosts, only when no specific host has been specified in the host overrides would the advanced wildcard entry be used.
To resolve the domain to an IP address:
Leave the host field blank in the host overrides. So if the query is now for
example.com the forwarder will return
192.168.1.45. If a client requests
192.168.1.101 would be returned instead.
If a blank hostname
example.com host override entry has not been created,
then a query for
example.com would return the wildcard IP address set in the
If a client queries for
madeupname.example.com then since no specific host
madeupname exists in the host overrides. The forwarder will
return the wildcard entry of