I'm trying to reverse map a block of IP using PTR record to some special name so their usage can be easily reflected by a simple nslookup.
For example, here's a nslookup result:
# nslookup 172.17.201.101 Server: 10.253.33.1 Address: 10.253.33.1#53 188.8.131.52.in-addr.arpa name = for.internal.use.only.
And I learned that I can add PTR record for a /24 block by using
$GENERATE 0-254 $.201.17.172 PTR for.internal.use.only.
So here's the question:
- Am I doing right exposing infomation of IP address by adding PTR record? Any better idea?
- If the question above is YES, then how to add PTR record for a /16 IP range? I know I can write 255 lines of
$GENTERATEdirective but any better solution?